On the Outdoors Stack, there is this question from a member with high reputation asking:
Looking for Technical Information on a Gadget with Fall Detection and Reporting Capability
I am old enough to plan ahead on fall detection, but vigorous and stable enough not to need it in everyday life now. However, I no longer feel comfortable hiking alone, and would like a gadget that would detect a fall and report it, and would like a gadget that would detect a fall and report it, preferably where there is no cell signal;...
...Please Note: I am not asking about price. I don't care if something better is coming down the pike. I am asking about what is available with the above specs now.
There's quite a bit more information in the question about why they can't/won't use a fall-detection pendant and why an Apple watch/other smart watch might not be suitable.
I don't see that this is personal medical advice; but it could be construed as a shopping-request, though they seem to be asking purely to know if such a device exists rather than asking which one might be the best to buy.