It's curious: I turn off almost all of the stuff that people advocate as helpful (privacy issues x1000). And in a pickle, I would turn off all data services -- they suck battery life x100. So I guess I'm a contrarian to the core (can you tell I did most of my wilderness work before cell/satellite/spot was an option?).

Sometimes, simple wins the day:

VANCOUVER -- A B.C. police department says a dying cellphone light helped them locate a lost hiker on a Vancouver-area mountain over the weekend.

Abbotsford police said in a news release Sunday that a hiker called 911 from Sumas Mountain Saturday evening. The Air 1 helicopter was brought in and night vision goggles were used, helping the team spot the hiker's cellphone light from 10 kilometres away.

https://bc.ctvnews.ca/lost-hiker-s-dying...ntain-1.5261979