This feature seems to have a few limitations: You have to point the phone, perhaps for a minute or two, which means you have to be able enough to point the pho

This feature seems to have a few limitations: You have to point the phone, perhaps for a minute or two, which means you have to be able enough to point the phone at a particular part of the sky dictated by the phone. If you are injured this may not be possible. So not as simple as just pressing a "rescue me" button. You need both satellite and GPS coverage wherever you are. GPS is not 100% available everywhere, sometimes tree cover or tall buildings can block it. Same with satellite coverage. So there are likely situations where it will not work, or it may get a message through but may not be able to send your GPS location.