Which plan will the device need?
Every device here requires an active subscription for messaging and SOS. Plans differ in minimum term, monthly or annual billing, message allowances and whether service can be paused, and activation fees apply.
Technology / US catalogue
Satellite messengers
Every device here needs an active service plan before it can message or send an SOS, so compare the plan structure and the network first, then battery, weight and build.
- Models
- 5
- US packages
- 5
- Manufacturers
- 4
What this catalogue covers
Handheld two-way satellite communicators sold new in the US that require a manufacturer service plan. Satellite phones, personal locator beacons, one-way trackers, smartphones and phone-only satellite features, and measured coverage, battery or rescue-outcome rankings are outside this catalogue.
Specifications come from the linked manufacturer documents and seller listings. We have not independently tested these products.
Before you choose.
Does the network cover where you go?
Iridium devices carry global coverage claims, while SPOT's Globalstar map separates SOS and two-way message coverage by region. Every coverage claim assumes a clear view of the sky.
Who receives an SOS, and what happens next?
Each maker routes SOS alerts to a named coordination service that contacts responders. That is not a guarantee of rescue, and rescue costs can fall to the user.
Will you type on the device or on your phone?
Devices with a screen and keyboard can message without a phone. Screenless devices rely on an app for anything beyond check-in and SOS.