Dual Nano-SIM (4G + 3G) ; 3G WCDMA B1(2100) / B2(1900) / B4(AWS) / B5(850) / B8(900) TD-SCDMA B34(2010) / B39(1880) ; 4G LTE B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B13 / B17 / B18 / B19 / B20 / B25 / B26 / B28 / B32 / B66 / B38 / B39 / B40 / B41 ; 4G LTE & 3G work with AT&T and T-Mobile ; DOES NOT work with Sprint, Verizon, U.S. Cellular and all other CDMA carriers ; LTE compatibility: This is international stock, varies per carrier (ensure to check with your carrier before purchase) 10nm, 64-bit, Octa-Core (2.7 GHz Quad + 1.7 GHz Quad) CPU ; 128GB ROM, 6GB RAM ; Supports microSD, up to 400 GB (uses SIM 2 slot) ; 3500 mAh battery. Main Camera: Dual: 12 MP (f/1.5-2.4, 1/2.55", 1.4 µm, Dual Pixel PDAF) + 12MP (f/2.4, 1/3.6", 1 µm, AF), OIS, phase detection autofocus, 2x optical zoom, LED flash; Front Camera: 8 MP (f/1.7, 1/3.6", 1.22 µm), autofocus, Auto HDR.

OS: Android 7.1.1 (Nougat), Display: 5.3 inches, IPS LCD capacitive touchscreen, 16M colors, Chip:Qualcomm MSM8998 Snapdragon 835, Memory: 64 GB, 4 GB RAM, Camera: Dual 13 MP, Sensors: Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer. Unlocked cell phones are compatible with GSM carrier such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint. Please check if your GSM cellular carrier supports the bands for this model before purchasing, LTE may not be available in all regions: 2G: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 , 3G: HSDPA 850 / 900 / 1900 / 2100, LTE: LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500).