This is great, but people do still need to keep in mind that this is not a full replacement of the emergency beacons that use the Cospas-Sarsat system, which would work anywhere, from pole to pole.

If you are going to do extreme hiking in Patagonia, get a real distress beacon. There is no service charge except for the device itself.

This is no joke - I had to use mine in the middle of Death Valley (of all places) during a seizure-like episode. Saved my life.