Nokia Lumia 920 32GB Unlocked GSM 4G LTE Windows Smartphone - White - AT&T - No Warranty 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 900 / 1900 / 2100, 4G: LTE 700 MHz Class 17 / 1700 / 2100 4.5" IPS LCD Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 2 Microsoft Windows Phone 8 (upgradeable), Dual-Core 1.5 GHz Krait Processor, Chipset: Qualcomm MSM896 Snapdragon, Adreno 225 Graphics 8 Megapixel Camera (3264 x 2448 pixels) w/ Carl Zeiss Optics and Dual-LED Flash + Front-facing 1.3 Megapixel Camera Internal Memory: 32GB storage, 1GB RAM, Non-removable Li-Ion 2000 mAh Battery 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.