I’ve found it to be pretty robust. I’ve taken the same phone on winter climbs in interior Alaska and summer floats, one of which I had to unstick a raft from a

I’ve found it to be pretty robust. I’ve taken the same phone on winter climbs in interior Alaska and summer floats, one of which I had to unstick a raft from a rock while water poured over me for about 30 minutes while it was in a pocket in my PFD. It’s held up just fine. The only thing is battery life. Especially in the cold, but that’s not an Apple thing, that’s an electronics thing. But you keep it in an internal pocket where body heat can keep it warm and turn off all the radios, or even the phone itself while not in use, and it can last a long time. I can now trade out my garmin inreach for a portable battery (which I already carry every trip yet never needed so far).