I’ve had 5G on auto since I’ve had the phone activated back on launch day and haven’t noticed any drastic battery drain or heat issues. Do you have anything else running in the background? For what it’s worth, I have background app refresh set to off and have my screen on auto brightness.
Your phone should not get hot to the point where it concerns you. I have my 12PM on auto 5G, background refresh on and charging, yet my phone stays cool. I have never even had it warm. I am a heavy user as well.
This definitely sounds like abnormal behaviour, and something you should contact support over.
I dare say there will be wildly differing responses here. But I’d guess, like many others, I’ve had no issue so far.
Since day 1, I’ve had 5G Auto enabled, and neither heat, nor battery drain have been an issue. In fact, with my 12PM, I have yet to get to the end of a day with even a low battery warning.
My 11PM could sometimes get me through a day, though I’d normally need a little top-up in the afternoon. Of course this battery is brand new, but I’ve still been stunned that it’s had so much left to spare, considering it’s got a slightly smaller battery than my 11PM. It’s one aspect I’ve been very impressed by.
im having the same issue with my 12 pro max, heating heavily while charging using an 18W adapter + battery draining overnight 10-15% .. went from iPhone 12 to pro max, the issue still continues, I'm in a no 5g region.