I don't want to have to charge my headphones or have them run out of battery.

And that's fine, but if you do anything active while wearing headphones, wireless is so much better. Even my cheap bluetooth headphones last 10 hours on a short charge (and tell me when they need to be recharged). I couldn't imagine going back to wires at the gym or while doing yard work. I do use a wired pair at my desk, but then why would I plug into my phone?

And AirPods? If you keep them in the case between uses they should always be charged.

Out of curiosity, why do you frequently need to know your altitude? I don't think I've ever known my altitude except when driving past those "Welcome to Springdalevale, pop. 781. alt. 2,003 ft" signs you see when driving through small towns in mountainous areas.

Nice, and I'm not OK with that :) I have no intention of having another thing that requires recharging, I've already got my phone. Glad to see different people needing different features from a phone, though.