[Chris Cook5]

I’m heading to Colorado in a few weeks with family. We were talking about plans, altitude, etc. today. I was beginning to think about iPhone batteries etc. does it affect anything?

[Annie_M]

I don’t think altitude a fax battery life on an iPhone. Extreme cold word and obviously extreme heat. Searching for signal so affect battery life so if you’re in a remote location where there aren’t many towers you might experience that.

[Lee_Bo]

Altitude, no. Heat, cold and weak signal, absolutely.

[Chris Cook5]

I meant to put this in the iOS 12 form

[dmoskaluk]

Should I ( shhhhhh ) plead guilty to having an iPhone active when at relatively low altitude aboard an aircraft and receiving cell data & SMS. At cruising altitudes the 'problems with onboard aircraft navigation & communication systems' are finally slowly being put into perspective as maybe relating to old analog 'thisses & thatses'. BUT the normal consequence is simply 'no signal' when high -above about 10,000 Ft ( battery goes down quick because of phone searching) and 'no signal' down to about 2 or 3 thousand Ft, which is an anomaly as its 'too many signals' as one has a 'high antenna site'
But as long as you ( for the sake of the lawyers) are 'on the ground' and have cell coverage, altitude ( should I use the word 'elevation' instead) should not affect anything adversely.

[Chris Cook5]

I forgot to mention we’re driving so I guess it doesn’t matter does it.

[Wotchered]

Well, I’m about 7’ above sea level,plus about 6’ of me and it seems fine here .....

[robertk328]

I meant to put this in the iOS 12 form

Fixed!