LG Optimus G Pro E980 32GB Unlocked GSM 4G LTE Quad-Core Android Smartphone - Black GSM 850 / 900 / 1800 / 1900, 3G Network: HSDPA 850 / 1900 / 2100, 4G Network: LTE 700 MHz Class 17 / 1700 / 2100 5.5" True Full HD IPS Plus LCD Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 2 Android v4.1.2 (Jelly Bean) 13 Megapixel Camera (4208 x 3120 pixels) w/ Autofocus &LED Flash+ Front-Facing 2.1 Megapixel Camera Internal Memory: 32GB, 2GB RAM + microSD Slot Expandable up to 64GB 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.