Where cell phone coverage ends, satellite messaging devices take over.
Satellite messaging devices provide a relatively inexpensive, easy-to-operate means to message friends and family with your status, location and in an emergency situation alert rescue agencies of your situation. In addition to marine use, they can be used on land and are a great way to remain connected to the world where no cell phone coverage exists.
Satellite communicators vary in their capabilities.
Satellite messengers vary in their capabilities. Some, but not all units like the SPOT X (which includes a QWERTY keyboard) are capable of two-way text messaging. Other units capable of two-way text messaging include Garmin’s inReach® Mini, inReach® Mini 2, inReach Explorer®+ and their inReach SE®+. Garmin’s inReach Explorer®+ and their inReach SE®+ also include built-in base maps and can be used for GPS navigation.
Another type of satellite communication device is Zoleo's Global Satellite Communicator. Used in conjunction with a free app, this ingenious device enables you to use your cellphone for seamless global messaging, SOS alerting and location awareness with 100% coverage over the Earth's oceans and landmasses.
Two features common to all satellite messengers is that in an emergency they can be used to alert emergency agencies of your situation. The second feature common to all is that they all require a subscription.
How long will your satellite messenger’s battery last?
In general, a satellite messenger’s battery life will vary with how often it tracks your position and with how clear a view of the sky it has. For example, according to Garmin, with tracking set to ten minute intervals and a clear view of the sky, the battery life of their inReach® Mini 2 is 14 days. However, under moderate tree cover the battery life is cut to four days.
Our recommendation is that when considering a satellite messenger, you carefully check the unit’s specifications and that you also read customer reviews. Reviewing available subscription plans is also important.
Satellite Communications FAQ
A satellite messenger sends basic text messages and SOS alerts, while a satellite communicator offers two-way messaging, tracking, and sometimes weather updates. Communicators are ideal for staying in touch when offshore.
Yes. Satellite communicators connect directly to satellite networks, letting you message, share location, and access emergency services even far from land or cell towers.
Yes, most modern satellite messengers pair with your smartphone via Bluetooth and use an app. This setup makes messaging and navigation easier while at sea.
Look for:
- Global or regional coverage
- SOS functionality
- Battery life
- Compatibility with smartphones
- Waterproof/durable design
Match your device to the kind of trips you take and the communication features you’ll actually use.
Most satellite messengers and communicators require a subscription plan for messaging, weather, and SOS features. Plans vary based on usage and provider.
Many models offer GPS tracking and marine weather updates. These features help with trip planning, storm avoidance, and letting others know your location.