Samsung Galaxy S III (T-Mobile)
HSPA+ on all bands?
UMTS 850 / AWS / 2100
So if you're in an AT&T area with HSPA+ in the PCS band you're SOL.
According to T-Mobile themselves, this is what the phone is capable of:
Band I (UMTS 2100), Band II (1900), Band IV (1700/2100/AWS), Band V (850)
UMTS: Band I (2100);UMTS: Band IV (AWS);UMTS: Band V (850)
http://www.t-mobile.com/shop/Phones/cell-phone-detai ... »