Sony Xperia T2 ULTRA LTE D5306 Unlocked GSM Android Smartphone - Retail Packaging - Black 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. Quad-band GSM/GPRS/EDGE support; 3G with 42Mbps HSPA; 150Mbps LTE Android OS v4.3 Jelly Bean with custom UI, confirmed for Kit Kat update 13MP autofocus camera with geo-tagging, HDR LTE Bands 2, 4, 7, 17 UMTS HSPA+ Band 1, 2, 4, 5, 8, GSM GPRS/EDGE 850, 900, 1800, 1900 MHz