Weve been deep in the backcountry for years, and our team of guides and iterant wanderershas tested the best satellite messengers on both professional and casual expeditions. Besides getting lost, we keyed in on the most important features youll need to get the message out and found the seven ideal devices for any situation.

　　Weve put each device through its paces over several years now — testing it all from typing ability to durability while getting dirty in the mountains of the Pacific Northwest and the expanses of the Southwest. We even went global with these messengers: challenging reception across Iceland and from the bottom of the world in Patagonia.

　　While satellite messaging capabilities are coming to mobile phones soon, we still see great utility in carrying a solid device like theGarmin inReach Messenger, our top pick. And if you just need a simple backup device, the budget ZOLEO Satellite Messenger is a solid companion. When push comes to shove, the SOS button is only a press away.

　　Here are 11 devices that will help you out of a jam, message your team back home, or at least keep you off the side of a milk carton.

　　Editors Note: We updated our Satellite Messengers guide on March 20, 2025, to add our new favorite satellite voice and messenger combo, the Iridium GO!, along with the cutting-edge Garmin inReach Messenger Plus, a splurge-worthy unit that adds voice and image sending abilities.

　　The Best Satellite Messengers of 2025 Best Overall Satellite Messenger: Garmin inReach Messenger Best Budget Satellite Messenger: ZOLEO Satellite Messenger Most Feature-Rich Satellite Messenger: Garmin inReach Mini 2 Easiest On-Device Communicator: SPOT X Best GPS Device Satellite Messenger: Garmin GPSMAP 67i Best Voice and Text Satellite Messenger: Iridium GO! Best Splurge Satellite Messenger: Garmin inReach Messenger Plus Garmin inReach Messenger $300 at REIcheck price at backcountry

　　

　　9.1 How we rate products Specifications Battery Life: 28 days Message Composition: On-device options/in-app Weight: 4 oz. Water Resistance: IPX7 Satellite System: Iridium Subscription Plan: $14.99 per month for annual Consumer: Essential plan Pros Compact size and weight Access to global Iridium satellite network In-depth functionality Extended battery life with reverse USB-C charging Cons Small screen for on-device typing Higher initial cost Nick Belcaster Read Review: Garmin inReach Head-to-Head Test: Move Over Mini 2, the Messenger Is in Town Diversity of communication ability gives the Garmin inReach Messenger ($300) a place above the rest in the satellite messenger world, and easily landed it as our best overall device. While having the ability to do standalone messaging is the main reason we carry a device like this, the phone integration makes everything much easier to use.

　　While other devices might rely on satellite communication alone, this Messenger works with your smartphone to send messages via your cellular network when it’s available, then defaults to the Iridium satellite network when cellular is not. Very slick. The Iridium network is the most consistent coverage weve tested over the years, with a truly global connection that has allowed us to send messages from the high latitudes of Iceland to Tierra del Fuego.

　　This seamless messaging stream within the app was one of our favorite features and can be a huge boon for people who travel in and out of the backcountry. The on-device options include a handful of pre-programmed menus to scroll through via the screen. They allow you to craft messages (albeit slowly), track your progress, or seek out a weather forecast while abroad. 

　　The compact 3-by-2.5-inch design weighs in at 4 ounces and is a sturdy build, rated to IPX7 water resistance. But unlike other devices of its size — or even slightly larger — you still get a small screen to monitor battery life, read messages, and adjust settings, all within the device.

　　Garmin recently rolled out a Plus version of this device that will also send images and voice — one of the biggest leaps in sat messaging tech in recent years — but youll need to pay an extra $200 for the privilege. That said, the process is refined, and the images are crisp. We see this as a fun new addition to the technology but not an absolute essential.

　　The inReach subscription plans were updated in late 2024, with a few name changes, but the biggest news was a big bump in the number of messages the lower-tiered plans afford: the Consumer: Essential plan is comparable to the previous Safety plans but now provide 50 messages a month compared to the previous 10.

　　The plans are now all month-to-month, with prices similar to previous annual contract rates. The annual program fees as also gone, but activation fees have gone up slightly.

　　All this is likely an effort to make satellite messengers more appealing as the new generation of satellite-capable phones hit the market, and while the new tech is appealing, we still feel strongly that theres a place for devices like the inReach Messenger. With its stellar mix of on-device and in-app messaging and functionality in a compact design, you get a stand-alone communicator that will always work (even if you drop your phone).

　　

　　6.7 How we rate products Specifications Battery Life: 200 hours Message Composition: In-app composition Weight: 5.3 oz. Water Resistance: IP68 Satellite System: Iridium Subscription Plan: $20 /month for Basic plan Pros Budget price Combination of on-device and in-app functions Ease-of-use Stout Iridium satellite network reception Medical Assist function connects you to a medical professional Cons Limited on-device functionality Cannot type messages directly on the device Chunky compared to some other devices Nick Belcaster Read Review: ZOLEO Makes an Everyday Satellite Communicator, Emojis and All

　　The best budget satellite messenger doesnt have to be the most basic. The ZOLEO Satellite Communicator ($200) offers straightforward on-device functionality with a wider suite of options when paired with the smartphone app, building a variety of abilities for a budget-minded adventurer who doesn’t want to skimp on capability. 

　　The Satellite Communicator offers basic messaging via the device — think SOS and a pre-set okay message — and then adds to that with additional options via the smartphone app that includes message composition for both sending and receiving. 

　　Primarily using the Iridium global satellite network, the device can also send messages using cellular coverage. Like the Garmin Messenger, the ZOLEO device will default to sending a message with cellular or Wi-Fi service if it’s available, and will even receive messages if the device is turned off. 

　　Last year, ZOLEO rolled out a new functionality weve never seen before called Medical Assist. This connects you with a medical professional to ask simple questions (read: if its serious, hit the SOS instead). This elevated capability is something that no other device currently offers and for simple first-aid queries, we think its an excellent addition.

　　Within the simple app, you can compose specific messages — though not on the device itself. This was our main quibble with the ZOLEO device, as it can be incredibly useful in coordinating, and having the potential to lose the ability, should your phone die is a tough sale. Luckily, the Power On button can send out a pre-set alert that lets a programmed contact know you are doing fine, which is a good addition in our opinion.

　　We enjoyed the durable design of the device, the budget-friendly initial cost, and the added functionality of the app. When taken together, the Satellite Communicator from ZOLEO offers a solid entry point for someone looking for a satellite messenger without needing full on-device functionality.

　　If you only need the big red SOS button (and the occasional Im OK message), the $150 SPOT Gen4 is our go-to for tossing in the glove box and forgetting about. But for $50 more, the ability to craft your own messages elevates this device without going overboard with functionality you might not use.

　　

　　8.9 How we rate products Specifications Battery Life: 14 days Message Composition: On-device options/in-app Weight: 3.5 oz. Water Resistance: IPX7 Satellite System: Iridium Subscription Plan: $14.99 per month for annual Consumer: Essential plan Pros Compact size and external carabiner for clipping to packs Improved screen over predecessor On-device navigation abilities (breadcrumb tracking, compass) Lightweight at under 4 ounces Cons One of the pricer devices No cellular or WiFi coverage Antenna isnt quite as good as the Garmin Messenger Nick Belcaster Read Review: Garmin inReach Mini 2 Review: Up to 30-Day Battery, No-Touch Tracking

　　Dont let the mini moniker fool you: the Garmin inReach Mini 2 ($400) still packs quite the punch when it comes to satellite messengers. Thats exactly why it earned the title of best feature-rich messenger in our testing — an ideal choice for someone looking for a mixture of compact design without sacrificing any features. 

　　Lets be upfront: The inReach Mini 2 isnt that far off from the inReach Messenger. It just comes in a slightly different package that makes on-device functionality a bit simpler. They both use the same apps and have many of the same features, so youre likely choosing to spend more on the Mini because of the ease of on-device use and novel navigation capabilities.

　　The Mini 2 offers the ability to send text messages — or even post to social media — directly from the device or app, along with checking weather (even for locations you arent currently at, a bonus function that helps set it apart), sharing locations, accessing Garmins TracBack routing feature, or using the device as a digital compass. 

　　Setting the inReach Mini 2 apart from the Messenger is a set of rudimentary on-device navigation abilities, including straight-line navigation to waypoints, reverse breadcrumb tracking, and following courses that have been added to the device either online or through the app. These features won’t compete with most phone navigation applications today (or dedicated GPS devices), but they certainly are functional should the need arise.

　　You may have trouble finding something you dont enjoy with the inReach Mini 2 (other than the purchase price) and for someone looking for all the bells and whistles, both on the device and in the app, in a streamlined design, this is the option of choice. 

　　

　　6.1 How we rate products Specifications Battery Life: 240 hours in 10-minute tracking mode Message Composition: On-device composition Weight: 7 oz. Water Resistance: IP67 Satellite System: Globalstar Subscription Plan: $11.95 /month for annual Basic plan Pros Familiar QWERTY on-screen message composition Ability to compose messages on or off the device In-device navigation capable Competitive subscription plans with plenty of custom messages included Cons Bulky size Globalstar network isnt the most robust (little coverage in polar regions) Micro-USB charging instead of modern USB-C Nick Belcaster Read Review: First Look: SPOT X 2-Way Satellite Messenger

　　Think Blackberry with a satellite connection — thats what comes to mind when first working with the SPOT X Satellite Messenger ($250), and it’s why it easily earned its spot as our best on-screen communicator. Ideal for the adventurer who doesnt want to be tied to a smartphone in any way, this device gets the job done all on its own.

　　The illuminated QWERTY keyboard is the real star of the show here and makes the SPOT X an effective on-device message composer — a real bonus for communication in the wild when you dont want to pull out a smartphone. The device even incorporates predictive text technology to allow you to breeze through longer messages.

　　Along with the SOS and wayfinding, it is the two-way communication that makes the SPOT X stand out. And while it was originally only offered without it, you can now decide if you want to use the associated smartphone app for sending and receiving messages, or keep the smartphone stowed and send-receive only on the device, which we found was actually pretty easy to do.

　　Unfortunately, the SPOT Globalstar network is one of the slower satellite options we investigated, and theres certainly a need to find a clear path to the sky for the SPOT X. When you get that, though, it can speed up your communication. Global coverage is also not quite global, with high polar latitudes lacking connection.

　　We also had a few grumbles with getting the SPOT X set up, as firmware updates require a cable and computer to accomplish. But once those hoops are navigated, the device is a fairly straightforward piece of kit to operate. The SPOT X puts on-device functionality front and center. If thats important for you — and youre okay with the added heft of the device — give this option a spin. 

　　

　　8.8 How we rate products Specifications Battery Life: Up to 425 hours Message Composition: On-device options/in-app Weight: 8.1 oz. Water Resistance: MIL-STD-810 Satellite System: Iridium Subscription Plan: $14.99 per month for annual Consumer: Essential plan Pros Full-fledged GPS device with built-in inReach capabilities Predictive texting and large color screen for easy composition Compatible with Garmin Messenger and Explore apps USB-C charging Large ecosystem of mounts available Cons Larger overall size Pricey if you dont need the GPS abilities Nick Belcaster Best thought of as a GPS first, communicator second, the Garmin GPSMAP 67i ($600) is the rightful heir to the place long held by the now discontinued inReach Explorer+ and offers an impressive amount of mapping ability in conjunction with its messaging chops.

　　As a stand-alone GPS, the 67i has just about everything you’d be looking for — but once you add in the inReach communication abilities, it becomes a true powerhouse for those who want an all-in-one device. Easily accessed, the messaging can be accomplished on or off the device and makes use of predictive text to breeze through messages.

　　In addition to the full suite of inReach messaging abilities, the 67i also supports both basic and premium weather forecasts for both land and marine locations. These forecasts can be incredibly helpful when you’re deep into an expedition and need to shed a little light on what’s in store for the next week.

　　While our previous Best GPS Device Messenger, the GPSMAP 66i, was not compatible with Garmin’s new Messenger app, we’re happy to see that the updated 67i gains the functionality. This is a fantastic boon for typing out extended messages on the app and means that the 67i can take advantage of the ability to send messages through cell or Wi-Fi service before pivoting to satellite use.

　　At a larger overall footprint and weight, we advise utilizing the GPS capabilities of the GPSMAP 67i to make it worth carrying along. We still think that the smaller inReach Messenger is the better device for most folks (as many use phones for navigation these days), but as a one-stop shop for your navigation, messaging, SOS, and weather, this device can handle it all.

　　

　　8.7 How we rate products Specifications Network: Iridium Satellite coverage: Global Antenna: Flip-up, omnidirectional Text messaging: Yes, through Iridium GO! app Battery life: 5.5-hour talk, 15.5-hour standby Display: Monochrome Waterproofing: IP65 and MIL-STD 810F Size: 4.5 x 3.2 x 1.2 Weight: 10.7 oz. Pros Voice calling and SMS texting with high character limit Email capabilities GPS tracking Programmable one-touch SOS button Stowable antenna for more compact design Cons Inconsistent connection can make it difficult to convey adequate amounts of information effectively Heavy and large compared to other satellite communication devices Necessitates smartphone for functionality Relatively limited battery life Nick Belcaster Read Review: Denali Calling: Testing the Iridium GO! Satellite Hotspot on North Americas Tallest Mountain If you’re going so remote that you need to make the occasional voice call or need internet to view a more detailed weather forecast, the Iridium GO! ($855) is the best handheld satellite option out there. Its a whole lot of tech for most people (and has the price tag to reflect it), but its the best all-in-one option weve used yet.

　　Somewhere between a satellite phone and a messenger, the GO! is the device we’ve taken to Denali year after year of guiding. It’s been essential for accessing upcoming weather trends and making audio updates for the folks back home. Full functionality will require you to use your phone, but were in full expedition mode whenever we bust out the GO! so its no added weight.

　　Audio quality is about on par with most satellite phones these days (the tech hasn’t evolved much), but it is still adequate and makes getting through a lot of information quickly possible. Weve recorded weekly transmissions on the Iridium and would ballpark audio legibility at around 90%. This device is the only one in our line-up that will do end-to-end audio calls, and while it may seem like a luxury, there are absolutely times when you need to get a lot of information across in a short amount of time.

　　Combined with a phone app, this device leverages the same Iridium network that the inReach and ZOLEO devices use, but you get a much larger messaging ability with the GO — 1,000 characters vs. the 160 on the (non-Plus) Garmins or ZOLEO. Texting feels much more conversational, and getting across detailed messages is easy.

　　You also get the same GPS tracking and SOS capabilities as those devices, meaning weight, bulk, and price are really the only things holding the Iridium back. $855 is a steep price to ask, along with the cheapest monthly subscription plan running you $65 a month (and youll pay $0.25 per text on top of that, though only when sending, not receiving), but if you need a device that will do it all, the investment in the GO! can make good sense.

　　

　　9.2 How we rate products Specifications Battery Life: 25 days Message Composition: On-device options/in-app Weight: 4.1 oz. Water Resistance: IPX7 Satellite System: Iridium Subscription Plan: $14.99 per month for annual Consumer: Essential plan Pros Full-spectrum connectivity through text, pictures, and voice Extremely long battery life Reliable satellite network with worldwide coverage IPX7 waterproof device Cons Pricier than predecessor Added abilities may detract from wilderness experience Nick Belcaster Read Review: Share Photos, Voice Memos, and Text From Anywhere: Garmin inReach Messenger Plus Review If you’ve got to have the latest and greatest, the new Garmin inReach Messenger Plus ($500) is the answer. This device is the same as the standard Messenger in all but three ways, but they’re a pretty big deal and can make the extra $200 spend make sense for some.

　　Those three features are voice messages, images, and messaging length, which put the Plus at the head of the table for almost all satellite messengers (save for the messenger/phone Iridium GO!). Well note the important distinction here: satellite phones like the Iridium allow for end-to-end voice calling in live time, while the new Plus offers up voice messages, in the same style that many cell phones these days offer.

　　But even that added feature is a treat to use, as Hunt Fish Editor Rachelle Schrute found while testing the Plus while hunting for elk recently. New allotments for photo and voice messages are now rolled into every Garmin subscription, and both of these abilities add a new dimension to texting your people from the backcountry. Images are modern cell phone quality, and the 30-second audio length is enough to relay a sweet nothing or two.

　　Take note: while text messages can be sent to any old cell number, your recipient will need the Garmin Messenger app to view the images and listen to the voice messages you send them. This is a bit annoying, and certainly so for folks who dont otherwise own a Garmin device, but its simple enough to download and use.

　　Like the Iridium GO!, the Messenger Plus also offers expanded text limits, and the 1,600-character messages you can send are even longer than the Iridium will allow. This is currently the longest message you can send on any satellite messenger out right now, so if you tend to wax poetic, youve got the space.

　　$500 is steep for the Messenger Plus, and the extra $200 youll spend over the regular Messenger makes this a definite splurge purchase. But we cant deny its exciting to be able to show our friends the high alpine lake were sleeping at tonight.

　　

　　6.9 How we rate products Specifications Battery Life: Varies with phone use Message Composition: On-device composition Weight: 7-8 oz. Water Resistance: IP68 Satellite System: Globalstar Subscription Plan: Free for first 2 years, pricing still unreleased Pros Integrated into the phone you already use Simple to use and intuitive interface Ability to send location pings Assists in aiming phone at best satellite signal Cons Globalstar satellite coverage isnt global, and fewer areas are approved for use by Apple As an all-in-one device, if you lose it or the battery dies, youre out of luck Nick Belcaster Read Review: Apple Satellite Messaging Goes Live: Here’s How the iPhone 14’s Off-Grid Service Works

　　Welcome friends: the future is now. The Apple iPhone Satellite Messaging functionality on iPhone 14 and up phones ($699-1,199) is certainly the first step, at least, and adds satellite messaging directly to your mobile — no extra device required. Adding the ability doesnt seem to have been difficult for Apple, and while there are questions about eventual subscription rates, initial testing has been great.

　　Tapping into the Globalstar satellite network that SPOT devices utilize, iPhone users can now text others and access emergency services when they are outside of normal cellular service. In typical Apple fashion, this is a seamless integration with the iPhone, and with the added processing power of a cellphone, Apple has also integrated an aiming functionality into the satellite service, directing you to the best signal for sending messages.

　　Now that this service has expanded beyond its initial SOS-only service, weve had ample time to test it in the field, and the results are good. Messages are delivered at similar times to commercial messengers, and the addition of satellite connectivity also means that users can use the Find My app to share their GPS location with others — a sort of check-in message that wont carry any text, but can alert others to your progress along a route.

　　Those considering the service should know that while Apple has made it free for an additional year (on top of the first free year since they rolled out the tech) there almost certainly will be a price tag for using the service eventually. While we cant imagine this being more than $20-30 per month, its value will come down to whether or not additional satellite messaging services are added or not.

　　With technology evolving quickly, were likely to see rapid adoption across mobile phone providers in the coming years. Just recently, a joint venture between T-Mobile and SpaceX launched the first set of Starlink satellites to incorporate Direct to Cell technology, which promises to bring cell service to everywhere on the planet.

　　So why dont we recommend everyone just buy iPhones? For one, the choice of Globalstar as a satellite network is a little disappointing (we imagine Iridium wasnt interested in being integrated), as its coverage isnt totally global. Second, one of the big ideas behind a dedicated satellite messenger is that it only does one thing, and if you lose or run out of battery on your phone, theres no other option.

　　Still, the prospect of (mostly) worldwide connection is exciting, and if youre up for a cell phone upgrade anyway, Apple iPhones satellite messaging ability could be a big reason to make the switch.

　　SPOT Gen4 $150 at REIcheck price at backcountry

　　

　　6.4 How we rate products Specifications Battery Life: 7 days to 156 days (dependent on tracking) Message Composition: Pre-set messages only Weight: 5 oz. Water Resistance: IPX8 Satellite System: Globalstar Subscription Plan: $11.95 /month for annual Basic plan Pros Simple to operate Minimal size and weight Inexpensive price and subscription plans Powered by easy-to-obtain AAA batteries Cons Lack of functionality No two-way messaging, only preset messages Not rechargeable Nick Belcaster Read Review: SPOT Gen4 Review: Better Maps, More Messages, and Auto-Send

　　In the modern world of satellite messengers, the SPOT Gen4 ($150) doesnt quite sit at the head of the table — but that doesn’t mean it doesn’t fill an important spot in the market for folks searching for something akin to a backup messaging option. 

　　The Gen4 has no custom on-device or in-app messaging, and theres very little in the way of features beyond the SOS signaling, pre-set message sending and GPS location sends. But for the pre-planner, or just as a purely emergency device, the Gen4 fulfills its duty well.

　　When it comes to messaging, you’ve got three options with this device: Pre-programmed, an SOS call, and the clever option for a spot assist if you dont need emergency services, but you do need to let loved ones know things arent going well. In our minds, this makes the Gen4 ideal for riding in the glovebox for emergencies.

　　We will note that all message recipients must be established pre-trip as theres no way to reconfigure the device when away from a computer, and theres no way for the SPOT Gen4 to receive messages. 

　　In testing out the messaging system of the SPOT Gen4, it appeared to struggle the most to find a signal (not wildly uncommon in satellite communications). The Gen4 does offer green LED lights to let you know you have a satellite connection and red lights to let you know youre not connected, an added benefit from a budget option.

　　The SPOT Gen4 is a slimmed-down, bare-bones version of a satellite messenger, and for most folks, we recommend springing the extra $50 to get the ZOLEO Satellite Communicator, which allows you to custom-type messages through its own app. The Iridium network it uses is also more robust. But if you just need the SOS button, the Gen4 is cheap to get, and cheaper to maintain a plan for.

　　ACR Bivy Stick $200 at REI$189 at Amazon

　　

　　6.4 How we rate products Specifications Battery Life: 120 hours Message Composition: In-app composition Weight: 3.3 oz. Water Resistance: IPX7 Satellite System: Iridium Subscription Plan: $14.99 /month for annual Basic plan Pros Lightweight and easily stowable Ample app functionality USB-C charging GroupTrack ability allows for group messaging Cons Limited battery life No on-device messaging ability Our device stopped charging after 1 year of use Nick Belcaster The ACR Bivy Stick ($300) takes a slightly different approach and relies heavily on its well-performing app for the bulk of its functionality. This makes the Bivy Stick ideal for the adventurer wanting basic on-device functionality while willing to rely on the smartphone app for all the fun extras. 

　　The Bivys on-device functionality is basic, with an SOS button tucked under a rubberized flap — ACR uses Global Rescue for its emergency services — a USB-C charging port, and a pre-set okay button. 

　　The functionality really steps up with the Bluetooth-connected app. In the app, you can compose and receive messages, both email and text, while adding your location to your communication. We will note that like ZOLEO, the Bivy Stick will send and receive on the Iridium network — as well as cellular or Wi-Fi coverage.

　　Quick-touch options in the app also perform message alerts, SOS calls, and more. The app offers a map view so you can track your current location and progress (or see routes) and other options let you see your data usage, track adventures, check the weather, and — for an additional subscription price — create group messages. 

　　Two LED lights give you info on the signal strength and status of a message, which is a nice function that some others dont have. The signal lights go from green to yellow to red to let you know strength, while the status light lets you know if youre sending or receiving a message, if SOS is active, and if youre successfully tracking your progress. 

　　We admit these are nice touches that we used when figuring out signal strength, and if a message was sent. Bivy uses the Iridium satellite network and offers a dedicated phone number and email for satellite messaging, another feature common with ZOLEO, but not yet offered by Garmin. 

　　Unfortunately, we found that after a few seasons of use, our Bivy Stick would no longer take charge. We arent sure exactly what the issue is, but there doesnt seem to be any fixing it. While this certainly might be a fluke, its not the type of thing you want to have happen to your emergency device. For most folks, the equally priced Garmin inReach Messenger is likely a better buy — even for the small screen alone.

　　Motorola Defy Satellite Link $150 at REI

　　

　　6.0 How we rate products Specifications Battery Life: 96 hours Message Composition: In-app composition Weight: 2.5 oz. Water Resistance: IP68 Satellite System: Inmarsat and Echostar Subscription Plan: $20/month for annual Monthly plan Pros Budget price Minuscule profile and weight Tough exterior with drop, shock, and water resistance ratings Cons SOS button isnt protected No global satellite coverage Need to download an app to compose and respond to messages Subscription prices have risen significantly Nick Belcaster Recently new, the Motorola Defy Satellite Link ($150) is an exciting addition to satellite messenger offerings and takes the tack that we see many other sat messengers doing today — poising itself as a sort of satellite hotspot thats meant to be tethered to your phone (as most of us are these days).

　　The tradeoff here is that if your mobile takes the dive for any reason, you lose the advanced messaging abilities and are stuck with a simple ‘Check-In’ message sent to a pre-chosen contact. But being offered right out of the gate with some of the cheapest subscription plans of any satellite messenger, the Defy makes a compelling case for those who need a simple get-it-done device.

　　So why hasn’t the Defy knocked the ZOLEO out of the Best Budget spot? Well, there are some kinks to work out. But first the good: At $150, the Defy is available for just about the bottom dollar when it comes to satellite messengers today — only the SPOT Gen4 is the same price.

　　The device itself is also in a league of its own when it comes to overall size and shape, weighing in at only 2.5 ounces and easily nesting into your palm (the SPOT Gen4 is thicker, the Bivy Stick is taller, and both are heavier). The Defy is also the first to use the Inmarsat and Echostar satellite networks in a satellite messenger, having previously only hosted voice-only sat phones.

　　In practice, however, these systems arent ideal for many users, as they as geostationary and located over the equator, which means youll need to be aimed at them to receive signal. In practice testing in the northern hemisphere, we found that any large mountains to south of us would kill our reception.

　　The SOS button, in a rather head-scratching move, is located on the side of the device and unshielded from erroneous pressing. Every other device on the market today opts for some type of cover to prevent accidental calvary-calling, and its omission here was a bit worrisome in our testing. Hopefully, this will gain a cover in later iterations.

　　While Defy poised itself as the cheapest subscription option when entering the U.S. market, it has raised its prices and isnt as good a value anymore. If youre using the Monthly plan, youll actually be in an annual contract with a cancellation fee equal to what you owe for the rest of the contract, so we only recommend going with the Annual plan.

　　Satellite Messenger Comparison Chart

Satellite Messenger	Price	Battery Life	Message Composition	Weight	Satellite System	Subscription Plan*
Garmin inReach Messenger	$300	28 days	On-device options/in-app	4 oz.	Iridium	$15 /month
ZOLEO Satellite Messenger	$200	200 hours	In-app composition	5.3 oz.	Iridium	$20 /month
Garmin inReach Mini 2	$400	14 days	On-device options/in-app	3.5 oz.	Iridium	$15 /month
SPOT X	$250	240 hours	On-device composition	7 oz.	Globalstar	$12 /month
Garmin GPSMAP 67i	$600	425 hours	On-device options/in-app	8.1 oz.	Iridium	$15 /month
IridiumGO!	$855	15.5 hours	In-app composition	10.7 oz.	Iridium	$65 /month
Garmin inReach MessengerPlus	$500	25 days	On-device options/in-app	4.1 oz.	Iridium	$15 /month
Apple iPhone Satellite Messaging	$699-1,199	N/A	On-device composition	7-8 oz.	Globalstar	Unreleased pricing
SPOT Gen4	$150	7 to 156 days	Pre-set messages only	5 oz.	Globalstar	$12 /month
ACR Bivy Stick	$300	120 hours	In-app composition	3.3 oz.	Iridium	$15 /month
Motorola Defy Satellite Link	$150	96 hours	In-app composition	2.5 oz.	Inmarsat and Echostar	$20 /month

*Subscription plan amount given for lowest overhead annual Basic, Essential, or Safety plans

　　

　　There are many devices on the market today, and we sought out the spread to compact them head-to-head; (photo/Tim Newcomb) How We Tested the Best Satellite Messengers Wed be lying if we said weve never gotten ourselves lost. Thankfully, the crew at GearJunkie is a savvy bunch, and our trials and tribulations have led us to be big proponents of carrying along a satellite messaging device when headed out into the backcountry. Here, weve compiled our collective knowledge around the little life-savers and called out the best of the best sold today.

　　Our Testing Process and Testing Locations All devices detailed in our selection were tested over multiple months by multiple gear experts and in varying conditions throughout the Pacific Northwest and Southwest. Whether hiking, biking, climbing, ski-touring, or simply putting the devices through their paces, the satellite messengers underwent a mixture of experiences to test them in real-life use cases.

　　While checking out the satellite messengers in the field, we assessed durability, connectivity, ease of use, functionality, and battery life. We tested devices side-by-side and timed their send and receive times, as well as how quickly they connected to satellites. We also sought out difficult terrain to challenge reception by attempting to send messages from deep canyons and beneath dense tree cover.

　　Beyond our team’s experience, we also considered the most popular and bestselling devices on the market, as well as a broad range of price points and features. Rest assured, as new devices hit the market, well continue to put them to the test to see if they have what it takes when it matters.

　　

　　Nothing challenges battery life like below-freezing testing, and we put each of these messengers through the same regimen; (photo/Matthew Tangeman) When feasible, we also test these devices on their SOS emergency messaging abilities by scheduling device tests with the service providers. Charge and discharge rates are also measured in-house, and we even toss these devices on our own scales to ensure the manufacturers claims about weight are accurate.

　　All this is in order to create a more well-rounded impression of these devices, which can be important: satellite messengers are quite good these days, and our recommendations can come down to mere ounces or minutes of difference.

　　Our Expert Testers Senior Editor Nick Belcaster contributed heavily to this guide, leveraging his time as a wilderness guide in the North Cascades of Washington State and copious time spent hammering out Im OK messages from the backcountry. He has utilized satellite messengers to get updates on closing-in wildfires, arrange for supply drops, and assist in extracting injured clients.

　　Assisting him is a team of AMGA mountain guides, ice climbers, trail runners, and many other GearJunkie athletes who use sat messengers daily to keep in contact from afar. Tim Newcomb is a veteran gear tester who also calls the Pacific Northwest home, and assisted heavily in getting out with these devices in order to test real-world messaging capabilities.

　　

　　From the mountains of the Pacific Northwest to the deserts of the American Southwest, we sought out the remote to test these sat messengers; (photo/Nick Belcaster) Buyers Guide: How to Choose a Satellite Messenger Every satellite messenger has a mixture of different functions and designs. Users may find some fit their expected adventures better than others, so it isnt always a one-size-fits-all approach to selecting the best satellite messenger.

　　Before you dive into a satellite messenger, be careful to go over features and functionality to see what you think youll need for how you expect to use the device. You also should keep in mind that the cost of ownership of a satellite messenger is more than the initial purchase price.

　　While you can get a device for as little as $150 and spend up to $400, each one requires a subscription service to allow it to connect to satellites for communication, even emergency communication.

　　Once youve narrowed down your top satellite messenger selections, we suggest looking over the companys subscription plans to see whats included in the differing options. Features you may find essential may come at a steeper per month price than you want to pay.

　　

　　With a wide variety of devices available, keying in on exactly what you want to do with a satellite messenger will help you decide which one is right for you; (photo/Nick Belcaster) Emergency Support and Messaging Know that a satellite messengers main goal is to provide emergency support when needed — every messenger comes with an on-device SOS button, but they also can help keep you connected to friends and family in non-emergency situations when cellular coverage is not possible.

　　You likely wont use your satellite messenger as you would a smartphone — and if you don’t expect to, you can select something such as the ZOLEO or SPOT Gen4 — but understanding the capabilities of your device can help with expectations. For example, messages sent via satellite may well take up to 20 minutes to send, even in ideal situations with the best on-device communicators the Garmin inReach Mini 2 and SPOT X.

　　Deciding which device to go with will depend upon your needs, as well as how often you plan to use it. Below we dive into the three main types of satellite messengers: SOS beacons, app-assisted communicators, and all-in-one devices.

　　Differing Styles

　　

　　The SPOT Gen4 is just about the most basic style of satellite messenger, while the SPOT X offers on-device and app-assisted messaging; (photo/Tim Newcomb) There are three main styles of satellite messenger, although overlap does exist. The most basic offers a simple SOS function and pre-set messages, all sent from the device without tethering to a phone, such as the SPOT Gen4.These devices are best thought of as a set it and forget it option, and youll be limited to sending messages that youve pre-written at home.

　　Its important to note that communication is one-way, which makes these devices most similar to personal locator beacons (PLBs) — which combine a satellite SOS function with a 406 MHz tone for rescuers to hone in on.

　　The next type offers these same functions but then includes an app — think ZOLEO, Motorola Defy, and Bivy Stick — that connects via Bluetooth to a smartphone for additional two-way messaging and functionality.This is a great step up in terms of functionality, in our opinion, and being able to craft custom messages has often gotten us out of a jam when outdoors, like changing itineraries or rendezvous points.

　　The third style includes the aforementioned features, but then also offers on-device functionality, from message composition to weather forecasting, as seen in the Garmin inReach Messenger, Garmin inReach Mini 2, and SPOT X.

　　These messengers are best for folks who want it all, or want the ability to leave their phone at home. Because they operate independently of a separate device, these messengers also have the most built-in safety of the bunch.

　　Satellite Messenger Networks

　　

　　The ZOLEO Satellite Communicator uses colored LEDs to relay its current satellite connection status; (photo/Nick Belcaster) First, its important to make a distinction between the two types of satellite systems that a satellite messenger will depend on. Global Navigation Satellite Systems, or GNSS, are satellite networks that provide location and speed information to devices like handheld GPS units. The most well-known of these is the GPS system, which is managed by the U.S. government, though other international systems exist.

　　Satellite messaging systems, like Iridium and Globalstar, provide communications information between the transmitter and receiver, and both services feature low earth orbit satellites covering much of the Earth. In fact, the polar orbit of Iridium satellites allows it to cover even the poles, while Globalstar has points on Earth it doesnt reach.Because of this, Iridium devices will be the best choice for those traveling to polar regions.

　　Other satellite networks, such as Inmarsat, orbit the planet in ageostationary pattern, with 15 satellites that are located along the equator. Because these satellites track the orbit of the Earth they remain in the same place. This means that coverage is best between the 60° latitudes, and that you may occasionally lose connection in deep valleys where your line of sight is obscured.

　　

　　Knowing when youve got a good connection with the satellites goes a long way in getting messages out in a timely manner; (photo/Nick Belcaster) Iridium has more satellites (66) than Globalstar, but Globalstar sends them higher to provide additional coverage. Another key difference is Globalstar relays with Earth-based transmission stations, which can cause a greater delay in messaging than the satellite-to-satellite relays from Iridium. No matter which device you choose, check the coverage areas of its satellite provider to ensure it covers your planned adventures.

　　When you send a message, your device will queue it up for the next time that it is in contact with the satellite network. While these systems offer broad coverage, it may take a few minutes for a satellite to pass overhead and into view of the satellite messenger. Finding a clearing or promontory can greatly improve your reception.

　　​​Emergency Coordination

　　

　　You can arrange for a test SOS activation with Garmin to ensure your device is working properly; (photo/Nick Belcaster) For obvious reasons, we didnt live-fire test the response time of emergency responders. But every satellite messenger comes with an SOS button that summons emergency help. Each company contracts with a service provider to coordinate a response, and while we don’t have data from every one, we do know that those buttons do get pushed a good bit: Garmin recently fielded its 10,000th inReach SOS call.

　　Many satellite messengers also allow you to test their SOS service to ensure that it is operating as normal. On Garmin devices, youll need to schedule an SOS Assistance Test, which provides a time slot for you to test the service. On SPOT devices, youll need to enable the SOS Test Mode in your online account before attempting.

　　Once your message goes out, its relayed to an emergency coordination center. Garmin recently purchased GEOS, now owning one of the leading emergency operations. ZOLEO contracts with GEOS. ACRs Bivy uses Global Rescue and SPOT contracts with FocusPoint International.All of these services are on the other end when you trigger an emergency call.

　　What Happens When You Trigger an SOS?

　　

　　No need to call the calvary — having the ability to send custom messages greatly simplifies letting others know your status; (photo/Nick Belcaster) When you make the call to trigger an SOS, youll need to uncover and depress the SOS button to summon help. This will send a message to the emergency service provider that you have contracted with through your subscription. Its important to know that without a current subscription, SOS service does not work.

　　On Garmin devices, these SOS messages are given a higher priority in the Iridium satellite system to ensure that they get to where they need to go. No matter the service, the functionality is similar, with the company working with local search and rescue teams to coordinate a response to your SOS call.

　　Some devices, like the Garmin inReach Messenger, SPOT X, and ZOLEO Satellite Messenger, allow you to send custom SOS messages to the emergency response service. This can be incredibly helpful when coordinating a rescue, and often an emergency coordinator will put you in contact with the local Search and Rescue (SAR) to better assist you. Response times can vary from a few hours to a few days, depending entirely on terrain, weather, and resources.

　　Its important to note that some more simple devices, like the SPOT Gen4, will only display an LED light to confirm that an SOS message has been sent, and not necessarily received. This has caused some to panic during an emergency, and opt to send multiple SOS messages — ultimately delaying their rescue.

　　Messaging, Weather Updates, and Tracking

　　

　　With a phone, the ACR Bivy Stick can type and send custom messages, but without one, youll be stuck with your preset messages; (photo/Nick Belcaster) Thankfully, the majority of us will never need to hit that SOS button, instead relying on our satellite messengers to communicate with others, seek out weather updates, and track ourselves on excursions. Most devices offer two-way messaging, with the exception of the SPOT Gen4, meaning youll be able to both create and receive messages from abroad.

　　A 160-character limit is typical of most SMS and email messages sent from satellite messengers, with slight variation from provider to provider. These messages can also be appended with your GPS location, giving those on the outside some peace of mind knowing where youre at.

　　Types of Messages Messages fall into one of two categories: Preset, Predefined, or Check-In messages, and Custom messages. Messages in the Preset category are those that are arranged before setting out on our trip, and typically relay messages such as Im Okay, Im Starting My Trip Here, or I Made it To Camp. These messages are very often unlimited and dont count against your subscription allotments.

　　Custom messages are those that are created on-the-fly, and can either be produced on-device or through an accompanying app. These messages are not limited to who they can be sent to, but they will count against your subscription if you have a messaging limit. Dont fear if you go over, however, all providers will spot you extra messages, at a typical 25-50 cent rate per message.

　　

　　Being able to track and share your location to a phone number, email, or even another inReach device makes backcountry rendezvous a breeze; (photo/Nick Belcaster) Weather Forecasts Certain satellite messengers, like the Garmin and ZOLEO devices, also utilize their satellite connections to deliver weather forecasts directly to your messenger. These forecasts will display the high/low temperature, conditions, wind speed and direction, and precipitation chance of either the location you are currently in, or a location of your choosing.

　　Garmin devices also offer an extended forecasting option (at $1 per), which bumps out the forecast window from 4 to 8 days, and offers a finer interval of forecast reporting. There is also the option to request a marine forecast, which includes information on wave height, currents, and visibility.

　　Tracking Tracking your progress can be a handy tool for both yourself, as well as those following along at home. This tracking is most often broken down into different intervals, allowing you to adjust the frequency at which a location is recorded. SPOT devices provide tracking at all levels of subscription, whereas Garmin offers it unlimited at the mid-tier subscription rate, and ZOLEO offers it as a Location Share+ add-on for $6 /month extra.

　　When it comes to the pay-to-track crowd, we will note that the Bivy Stick is a particularly poor deal when it comes to tracking: A monthly basic plan allows 20 credits, which are shared between messages and tracking and can quickly be chewed up at one credit per 30 minutes at the 5-minute tracking interval. You can par down your tracking interval to once every hour, but functionally we find this to be too coarse for accurate tracking.

　　Applications

　　

　　The Garmin Messenger app was a leap forward in messaging ability, as it added cellular and Wi-Fi as alternative avenues for sending messages; (photo/Nick Belcaster) We cant go too far without needing an app for that these days, and its the same in the world of satellite messengers. A few of the key devices tested, such as the ZOLEO and Bivy, require you to connect via Bluetooth to your smartphone to use the app for custom messaging, and most of the functionality (really, anything other than the SOS or OK message).

　　Garmin, while allowing for on-device messaging on both the inReach Messenger and inReach Mini 2, has a strong app that makes messaging much simpler than on the device. We’ll note that even some Garmin smartwatches integrate with the devices for easy wrist-triggered SOS messages.

　　The SPOT X doesnt rely as much on an app, but it is there for additional functions. And it works just swell. The SPOT Gen4 is the only device we tested that doesnt tie into an app for its in-field functionality.

　　The Functionality You Need

　　

　　The ZOLEO Satellite Communicator lands at about the middle of the spectrum when it comes to functionality, and serves most adventurers most of the time; (photo/Nick Belcaster) What you need out of a satellite messenger depends on the adventures youll go on. Are you a one-day or weekend trip adventurer who is generally in cellular coverage, but wants access to the SOS function for those emergency situations when cellular coverage might not be available? If so, going basic may be enough.

　　Are you planning multiday trips out of cellular coverage and want to not only have emergency functions, but also messaging capabilities? That will require a device that can handle your plans. Understand what type of adventurer you are and select a messenger — and service plan — to fit those needs.

　　Satellite Messenger Subscription Plans

　　

　　The Garmin inReach Messenger sports an impressive 28-day battery life when sending a message every 10 minutes, and can reverse charge other electronics; (photo/Nick Belcaster) Editors Note: Subscription plan information is accurate as of March 2025.

　　Beyond your one-time purchase price, youll also need to select a subscription service to render the device useful. Typically offered as monthly plans, you can select how many messages you can use, how much tracking you can do, and so forth. Carefully look through service plan options before you buy so you dont get stuck with a device you dont want to pay to stay active.

　　Garmin inReach Plans The Garmin plans offer great flexibility in pricing (as low as $15 and as high as $55 per month), which also impacts what you get. Recently updated in late 2024, the plans are broken up into two tiers: Consumer and Professional, and now move away from Freedom and Annual plans, and instead there are three levels of service: Essential, Standard, and Premium.

　　The most basic Essential consumer plans allow for 50 text messages, tracking intervals of every 10 minutes, and an activation fee of $40 with overage charges for additional text messages, weather services, and location requests. The $50 Premium monthly plan offers tracking every 2 minutes and unlimited tracking points, text messages, location requests, and more.All plans as of 2025 now support some number of photo and voice messages (between 10 and 50 a month), but youll need the inReach Messenger Plus to use the service.

　　ZOLEO Plans ZOLEO ranges from $20 to $35 to $50 per month and steps from 25 messages to 250 to unlimited along the plan choices. You can add $6 per month for location shares and get unlimited check-in messages. Overages for each message is $0.50 for the first two plans. ZOLEO has recently raised its activation fee to $40.

　　SPOT Plans The SPOT X plans range from $12 to $40 per month with six different plans. Expect to get anywhere from 20 custom messages to hundreds or even unlimited messages. The SPOT Gen4 features two plans, either $12 or $15 per month, depending on if you sign up for a year or go month-to-month. The nearly identical plans both come with unlimited check-in or help messages and basic tracking.

　　SPOT has a $30 activation fee for any subscription, and if youre using their Flex plans (where you pay by the month and can elect to leave the device unactivated when you arent using it), youll also pay an annual Flex Charge fee of $35. Weve tallied the math, and if youre going to use your SPOT device for more than 6 months of the year, you should purchase an annual contract plan.

　　ACR Plans The Bivy Stick has four plans — all available at a discount for a yearly contract or more expensive for a month-to-month contract — ranging from $15 per month to $65. The basic plan includes 20 credits, which can be used as a message or tracking, with overages of $0.75 per credit. Each step up includes additional credits and services until unlimited credits with group tracking. Bivy has no activation fee, instead differentiating the monthly price based on contract length.

　　Motorola Plans Motorola Defy contracts with Bullitt Satellite for their subscription coverage, and while they used to be highly competitive as the cheapest satellite messenger service out there, they have raised their plan prices significantly in 2025. You can pay either monthly or annually, but the monthly plan requires a 12-month contract, and youll be charged an early cancellation fee of the amount you still owe on your year. The $190 annual plan is the better of the two, and youll pay a $10 activation fee.

　　Size, Weight, and Batteries

　　

　　While most satellite messengers sport a long battery life, be mindful of having a backup power source to keep them juiced up when it counts; (photo/Nick Belcaster) While most satellite messengers are compact, some do come lighter and smaller than others (here’s looking at you, inReach Mini 2 and Bivy Stick). And that may be great in certain situations. If youre lugging tons of equipment with you, a few ounces or an inch or two in size may not matter, and you can embrace the SPOT X, but if you want something you can carry in your hand while you run or clip to a small pack while you bike, for example, these specifications will hold extra importance.

　　Another specification to watch is battery life, especially if you plan on long adventures or already have a set routine for charging devices (will micro-USB or USB-C require you to bring an extra cord?) while on an adventure.Most satellite messengers aim to provide extended battery life for long trips into the backcountry, but its important to remember that this battery life can be limited by the number of messages sent, tracking intervals, and active screen time.

　　Almost all sat messengers today, with the exception of the SPOT Gen4, sport an integrated rechargeable battery that can be juiced up in the field from a solar panel or power bank. Some, like the Garmin inReach Messenger, even offer reverse USB-C charging that can perk up your other electronics if needed.

　　Durability

　　

　　The IPX7 rating of the Garmin inReach Messenger means that its protected from ingress of dirt, water, or blowing snow; (photo/Nick Belcaster) New brands need to start somewhere but decide if youre willing to start with them. The likes of Garmin and SPOT have led the satellite messenger categories for years, so have built-in dependability in terms of quality of product. But that doesnt mean that ACR or ZOLEO arent there yet. All the messengers we tested, except for SPOT-branded devices, use the trusted Iridium satellite system for reliable coverage, so we dont expect issues there.

　　Then there’s the durability of the device itself. Each device has undergone testing to earn an international IP number. Both the Garmin devices nor the Bivy Stick werent tested against dust and earned a 7 for water (an IPX7 rating represents this), which allows for water immersion protection up to three feet for 30 minutes.

　　The SPOT X earned an IP67, which offers complete dust protection with the same level of water protection.

　　The SPOT Gen4 and ZOLEO devices are rated at IP68, complete dust protection with water immersion protection for long periods of time under pressure, the most durable of the devices tested.

　　Understand how you plan to use your satellite messenger and then choose a device that fits your personal needs.

　　Price Value

　　

　　There is a wide range of devices out there, so consider what youll be using them for the most before purchasing; (photo/Tim Newcomb) Theres a pretty broad range of satellite messenger prices out there, with budget-friendly devices asking $150 to all-in-one units $600 units thatll be your GPS, messenger, and even flashlight. Because everyone has different aspirations outdoors (and needs), consider how youll be using your satellite messenger, how frequently, and if custom messaging is important for you. Its one thing to send a quick Im OK! message on a backpacking trip, and another to coordinate a high-alpine rescue in Nepal.

　　Budget The budget satellite messengers prioritize the essentials, with the emergency SOS function being the number one. These units often dont host any type of on-device message composition and instead rely on pre-selected messages that you manage from home. Youll also more often be locked into the Globalstar satellite network, which is cheaper to access, but not quite as good as the more prevalent Iridium system.

　　The ZOLEO Satellite Messenger is an outsized value at $200, as it both uses Iridium birds, as well as hosts an app where you can clack out custom messages. The downside here is a slightly chunky profile, as well as a more limited battery life of 8 days. You also cant message directly from the device, but so long as youve got your phone, youre covered.

　　Mid-Tier Bumping up to $300 to $400 devices gets you a good bit more, and this is where you think most outdoor folks are best served. For one, mid-tier devices all use the gold-standard Iridium network, which has truly global coverage and quick send-and-receive times. You also almost always get an on-device messaging ability, even if it is a little clunky.

　　An important factor in your choice should also include the price of the subscription, and while its gone up slightly recently, the $15 a month youll pay for the Garmin inReach Messenger ($300) or inReach Mini 2 ($400) is still a solid deal for the lowest tiered plan. These devices will also last a good bit longer than budget ones, with between 14 and 28 days of runtime.

　　Premium Spending the big bucks will get you all the bells and whistles, and the $600 Garmin GPSMAP 67i is part GPS, part messenger, and for those who need a one-and-done unit, this is it. A full-color screen and predictive texting makes clacking out a message easy, and the host of other features really bumps up the value.

　　For the same price, you could also get into a new Apple iPhone 14, which now hosts satellite messaging. The big question will be how much theyll charge for the service once the promotional free period runs out. The IridiumGO! ($855) is certainly specialized, but for the money, youre getting a satellite phone, messenger, and internet hotspot in one device.

　　Frequently Asked Questions What is a satellite messenger?  A satellite messenger, which requires a subscription service to operate, connects to a satellite system to send and receive messages. This process is different than the near-instantaneous response of a cellular or WiFi network. The device uses this satellite capability to keep you connected to others when cellular coverage is not available.

　　Should I get a satellite messenger? If you plan to adventure beyond cellular coverage, you may want to consider having an active subscription to a satellite messenger. The only reliable way to call for emergency services or let loved ones know youre in a safe place is by relying on satellite messenger coverage.

　　Does Garmin make the best satellite messenger? It is hard to argue that Garmin doesnt make the best satellite messengers, whether the inReach Messenger or the inReach Mini 2, but that doesnt mean Garmin is the only manufacturer of quality satellite messengers.

　　We can recommend Garmin products based on our independent testing, but were also impressed with a mixture of additional satellite messengers from a variety of companies.

　　Is on-device messaging needed for a satellite messenger? In short, potentially. You want to ensure that you have the SOS option on your satellite messenger — a standard feature in the industry — and the ability to send an Im OK message when needed.

　　How much additional functionality you want to have on your device is up to you. Relying on tethering to your smartphone via Bluetooth requires that your phone doesnt lose connectivity to your device and your phone stays charged and accessible. The more on-device message composition functionality, the less you need to rely on your smartphone and the devices app to stay connected.

　　

　　Being able to write a custom message adds a great deal of flexibility to your communications; (photo/Nick Belcaster) How quickly does a satellite messenger send a message? Be patient when it comes to satellite messages. It may take just a few minutes to send a message, especially with a clear sky and no tree coverage. But getting a connection to a satellite may be tough in some locations, and even the positioning of satellites or heavy cloud cover can alter the timeline of your message.

　　Keep in mind, theres no guarantee you can get a signal to a satellite, so some cases may require a high level of patience or willingness to move in order to connect to the satellite.

　　

　　

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