Samsung Galaxy J7 (16GB) J700F/DD, 5.5" Dual SIM Factory Unlocked GSM International Version 2G Bands: GSM 850/900/1800/1900 3G Bands: 850/900/1900/2100, 4G LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) - NO LTE IN US. Android OS v6.0.1 (Marshmallow), CPU: Octa-core 1.5GHz GPU: Adreno 405 , Chipset: Qualcomm MSM8939 16GB Internal Memory, External Memory micro SD Slot (Dedicated) up to 128 GB, Dual Sim Card ( Micro Size ) 5.5-Inch Super AMOLED Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass International Model Phone Works with GSM carriers such as AT&T, T-Mobile etc.; DOES NOT work with Sprint, Verizon, U.S. Cellular and all other CDMA carriers. Does NOT have any US Warranty.