My recent experience with hurricane Irma confirms my scepticism of cell phones whose batteries aren’t user-replaceable.
Most of the newest phones, in an effort to make them thin, use batteries that can’t be quickly replaced. Apple began this sorry trend and Samsung followed suit.
Even in good weather, I’m often away for 14 to 16 hours, during which I use my phone. When its battery dies, I pop in a freshly charged battery and keep working.
Apple wants us to think that eliminating the replaceable battery is a step forward. Actually, it’s a step backward.