Samsung Exhilarate I577 4G LTE Unlocked GSM Android Cell Phone - Black 2G: GSM 850 / 900 / 1800 / 1900, 4G: LTE 700 MHz Class 17 / 1700 / 2100 4" Super AMOLED Capacitive Multi-Touchscreen Android v2.3.6 (Gingerbread), Dual-Core 1.2 GHz Processor 5 Megapixel Camera (2592 ? 1944 pixels) autofocus + Front-Facing 1.3 Megapixel Camera + Video Internal Memory: 4GB storage, 1GB RAM + microSD Slot Expandable up to 32GB