BLU Studio Energy 2 S0090UU 16GB Unlocked GSM 4G LTE Quad-Core Smartphone w/ 8MP Camera - Gray (Certified Refurbished) 5.0-inch Super HD AMOLED Capacitive Multi-Touchscreen Android OS 8 Megapixel Camera (3264 x 2448 pixels) w/ Autofocus, LED flash + Front-facing 5 Megapixel Camera Quad-Core 1.3 GHz Mediatek 6735 Processor Internal Memory: 16GB, 1.5 GB RAM + microSD Slot Expandable up to 64GB