Nokia Lumia 900 16GB black -factory unlocked- international version 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 1900 / 2100, 4G: LTE 700 MHz Class 17 / 1700 / 2100 4.3" AMOLED Capacitive Multi-Touchscreen w/ Nokia ClearBlack display and Protective Corning Gorilla Glass Microsoft Windows 7.5 (Mango), 1.4 GHz Scorpion Processor, Chipset: Qualcomm APQ855 Snapdragon, Adreno 205 Graphics 8 Megapixel Camera (3264 x 2448 pixels) w/ Carl Zeiss Optics & Dual-LED Flash + Front-Facing 1.3 Megapixel Camera Internal Memory: 16GB, 512 MB RAM (not expandable)