Sony Xperia Z3 Compact D5803 Green Factory Unlocked LTE GSM 4.6" [LTE:700/800/850/900/1700/1800/1900/2100/2600] - 2G : GSM 850/900/1800/1900 3G : 850(B5) / 900(B8) / 1800(B3) / 1900(B2) 4G : 700(B13) / 700(B17) / 800(B20) / 850(B5) / 900(B8) / 1700 2100(B4)/ 1800(B3) / 1900(B2) / 2100(B1) / 2600(B7) Importatn : Please Check WITH YOUR NETWORK PROVIDER the compatibility before you buy. Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin. This cell phone may not include a US warranty as some manufacturers do not honor warranties for international version phones