On paper, the Somewear looks like an ultralight version of the original DeLorme inReach SmartPhone – a smartphone-dependent Iridium text-messaging device with GPS and SOS built-in.

However – I get cranky seeing small inaccuracies in descriptions of the Somewear. Could be sloppy writing, but that still raises red flags for me.
It’s more expensive and less capable than a Garmin Inreach SE+. It’s the same price with far fewer features than the Garmin Inreach Explorer+. But it’s 4.5 ounces lighter. Seems like a risky business model.
Iridium is the only source of modems for their system, and the 9603 modem is inside the InReach, YellowBrick, and similar devices. [Correction: The 9603 is new, smaller, and lighter, but available to all.] That means Garmin or another competitor could essentially clone the Somewear without too much trouble. Wonder why they haven’t?
Somewear’s cap over their SOS button looks like it’s not attached. Could be too easy to lose, and then too easy to trigger a search and rescue accidentally.
YAEDWNRB – Yet Another Expensive Device With Non-Replaceable Battery. So in a few years, you might need to replace your $450 Somewear. Just like thousands of other devices, unfortunately. Somewear has a vague statement about battery swaps on Kickstarter.
As Doug mentioned, Somewear doesn’t track in real time – it stores breadcrumbs for delivery later, a deliberate design decision. Wrong decision, IMHO. I hope they add a real-time tracking option. Potential users are already requesting that feature.
Competition is good – I hope Somewear succeeds.
— Rex
For more than you really want to know about satellite communications for backpackers: https://backpackinglight.com/satellite_communications_sotmr_part1/
and
https://backpackinglight.com/satellite_communications_sotmr_part3/
(slightly outdated but still useful)