Pantech Discover P9090 16GB Unlocked GSM 4G LTE Dual-Core Android Smartphone - Gray 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 1900 / 2100, 4G: LTE 700 / 850 / 1700 (AWS) / 1900 / 2100 (Bands 2, 4, 5, 17) Android v4.0.4 (Ice Cream Sandwich) 4.8-inch TFT Capacitive Multi-Touchscreen, Dual-Core 1.5 GHz Krait Processor, Chipset: Qualcomm MSM896 Snapdragon, Adreno 225 Graphics 12.6 Megapixel Camera w/ Autofocus & LED Flash + Front-Facing 2 Megapixel Camera Internal Memory: 16GB (13GB user available), 1GB RAM + microSD Slot Expandable up to 32GB 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.