well, iphone dies of battery discharge.

in 2023 I had a pretty nice night ~4km from a town in Montenegro. I could even see it from the mountain I was at and still had to sleep under a bush because I was not prepared enough. Thanks to thousands years of history they have ancient outlets for mountain springs so you can have drinkable water in most unexpected places while walking down from a misadventure.

Imagine that happening ~20km off civilization. Unprepared one will just die, iphone+satellites or no.