Samsung Galaxy J1 J100M Unlocked GSM 4G LTE Quad-Core Android Smartphone - Blue 3G: HSDPA 850 / 900 / 1700 / 1900 / 2100, 4G: LTE 700 / 850 / 1700 (AWS) / 1900 / 2100 / 2600 (Bands 1, 2, 4, 5, 7, 17) 4.3-inch TFT Capacitive Multi-Touchscreen Android v4.4.4 (KitKat), Quad-Core 1.2 GHz Processor, Mali-400 Graphics 5 Megapixel Camera (2592 ? 1944 pixels) w/ Autofocus & LED Flash + Front-Facing 2 Megapixel Camera Internal Memory: 4GB, 768 MB RAM + microSD Slot Expandable up to 128GB