Screen: Super AMOLED capacitive touchscreen, 16M colors, Size: 5.8 inches, Resolution: 1440 x 2960 pixels, Protection: Corning Gorilla Glass 5. OS: Android 7.0 (Nougat), upgradable to Android 8.0 (Oreo), Chipset: Exynos 8895 Octa. Memory: 64 GB, 4 GB RAM. Camera: 12MP, Front: 8 MP. Sensors: Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2. 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 bands: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2, 3G bands: HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100, LTE bands: 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 66(1700/2100), 38(2600), 39(1900), 40(2300), 41(2500).

Dual Nano SIM ; Works with AT&T, T-Mobile & other GSM carriers ; 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) 5.5 inches IPS LCD capacitive touchscreen, 16M colors. Rear Camera: 19 MP, f/2.0, 25mm, EIS (gyro), predictive phase detection and laser autofocus, LED flash ; Front Camera: 13 MP, f/2.0, 22mm, 1/3" sensor size, 1.12 ?m pixel size, 1080p.