If you want the peace of mind of access to satellite messaging, location tracking and SOS service without buying a new smartphone, such as the Cat S75 or Motorola Defy 2, Motorola has a solution for you: the Motorola Defy Satellite Link, which it is announcing at Mobile World Congress (MWC) in Barcelona.

This is a credit-card-sized device measuring 70mm by 50mm by 11mm and weighing 70g that contains MediaTek's 3GPP NTN-standard modem to support Bullitt Satellite Connect, plus an eSIM and independent GPS. It connects via Bluetooth 5.1 to any iOS (14 or later) or Android (10 or later) smartphone, and is a rugged (IP68/MIL-STD-810H) unit with a lanyard and attachment loop so you can hang it round your neck or off your belt, or you can keep it in your car's glove box in case of auto emergencies.

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Usefully, the Motorola Defy Satellite Link, which is powered by a 600mAh battery, is transferable between phones -- so you could lend the device to a family member who was going on a hiking trip, for example. The device has a physical SOS and location 'Check in' button, so it can perform essential functions even when separated from its paired smartphone.

Bullitt Satellite Connect (BSC) makes use of GEO (geostationary) satellites operated by Inmarsat and EchoStar and managed by Bullitt's satellite network service partner Skylo. A text message (up to 140 characters) with location information from a phone paired with the Motorola Defy Satellite Link and with the Bullitt Satellite Messenger (BSM) app installed travels some 22,300 miles to the nearest GEO satellite and is relayed back to a Skylo ground station, whence it travels via a cellular or Wi-Fi internet connection to its recipient. You are prompted to download the BSM app on receiving your first satellite message as an SMS on a regular smartphone; replies via BSM take the opposite route (Wi-Fi or cellular to ground station, to satellite, to satellite phone).

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SOS assistance is also available with Bullitt Satellite Connect, courtesy of FocusPoint International, which manages 24/7 monitored response centers that handle emergency messages and assistance requests, escalating to emergency services as required.

The Motorola Defy Satellite Link will be available in Q2 2023 across international retailers at$99 /