For now I think you better off with a tmobile g4, they have it on sale for 480 plus there's a coupon code that brings down another $48
Posted via the H815 LG G4
Att phone:
*Some features might be disabled
*slower update
*carrier bloat ware
H815:
*faster update
*all the features that LG offers in the G4
Also warranty and goodies that you mentioned.
I have the h815, I can't deal with carrier crap
Also try to get the one from T-Mobile if you want to use...