FWIW, Specialized has a technology called ANGI that they include with many of their helmets. It was a subscription service but in 2019 or so it became free. Same basic deal. it knows when you've experienced certain forces and will contact an emergency contact with GPS Coordinates. It all runs in conjunction with your phone... when you crash it starts a timer. If you do not disable it, it will send the emergency notification.

I have one on my Specialized helmet. However, I simply use the Strava Beacon. Among other things even if they miss the incident, the Strave app, if active, can tell them where I am specifically so they can check in or whatever.

I had not thought about the line that I need a GPS computer for the bike because it will send incidents as they happen to my safety contacts! LOL.