Samsung Galaxy Note 4 N910C Unlocked Cellphone, International Version, 32GB, Black 2G (GSM) GSM850, GSM900, DCS1800, PCS1900; 3G (UMTS) B1(2100), B2(1900), B5(850), B8(900) 16 Megapixel Camera (3456 x 4608 pixels) w/ Optical Image Stabilization, Autofocus & LED Flash + Front-Facing 3.7 Megapixel Camera 4G FDD LTEB1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B17(700), B20(800) Internal Memory: 32GB, 3GB RAM + microSD Slot Expandable up to 128GB 5.7-inch Super AMOLED Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 3 Android v4.4.4 (KitKat), Octa-core 1.9GHz, 1.3GHz Processor, Chipset: Krait 450, Adreno 420 Graphics Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.