Not OP but > And what do you do if you run out of batteries? My battery lasts 2 days. If I'm away for a night I pack a charger along with my toothbrush and cl

Not OP but > And what do you do if you run out of batteries? My battery lasts 2 days. If I'm away for a night I pack a charger along with my toothbrush and clothes. I genuinely cannot remember the last time I was caught off guard by this. > Or lose the phone? Short term - same as if I lose my keys or my wallet. It's a giant pain in the ass. longer term, doesn't matter, new phone + restore from backup. I don't need to phone my bank and cancel my cards, or change the locks on my doors in case my keys were pickpocketed and I'm targeted. > Or it gets wet and won't turn on? Many smartphones have been ip68 rated for the best part of a decade. Note that to not turn on, you're realistically talking about submerging it, not just being out in the rain. Maybe I live a more sheltered life than you, but finding myself unexpectedly submerged is about as extreme a situation as I'm going to find myself in, and not one I plan for other than being able to swim.