Samsung Galaxy S II 16GB Unlocked GSM 4G LTE Android Smartphone w/ 8MP Camera - Dark Gray 2G: GSM 850 / 900 / 1800 / 1900, 3G: 850 / 2100 4.5-inch Super AMOLED Plus Capacitive Multi-Touchsscreen Android v2.3.5 Gingerbread, Dual-Core 1.5 GHz Scorpion Processor, Chipset: Qualcomm MSM826 Snapdragon 8 Megapixel Camera (3264 x 2448 pixels) + Front-Facing 2 Megapixel Camera Internal Memory: 16GB storage, 1GB RAM + microSD Slot Expandable up to 32GB