5.5-inch HD 720 x 1280 pixels (~267 ppi pixel density) Super AMOLED;16 GB ROM, 2 GB RAM, microSD, up to 256 GB (dedicated slot) ,Octa-core 1.2 GHz Qualcomm MSM8916 Snapdragon 410;13 MP Main Camera f/1.9, 28mm, 5 MP Front Camera, Android OS, v6.0.1 (Marshmallow);3G HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100, 4G LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 17(700), 28(700);International model phone, will work with Most GSM SIM cards in U.S. and world Including AT&T, T-Mobile, MetroPCS, Etc. Does not have US warranty. Will NOT work with CDMA Carriers Such as Verizon, Sprint, Boost.