I have the SPOT X Messenger and the Garmin inReach SE; I'm trying to decide which to maintain next year, the SPOT is probably leading at the moment.
I use them when I fly SEL airplanes on cross countries; both are perfectly adequate for quick messages or map tracking. Note the SPOT uses the Globalstar network, and has a limited coverage area if your adventures take you to remote corners of the world; the inReach uses Iridium and has much better global reach (especially polar regions).
The SPOT X includes a US phone number for people to be able to send you messages. It works well in my experience.
Last edited by AussieExPat; May 20, 2019 at 11:10 am