This device is compatible with all GSM Carriers Worldwide (i.e. carriers that use a SIM card) such as AT&T & T-Mobile in the U.S & CDMA Carriers such as Verizon & Sprint. Not Compatible with any other GSM Carriers such as: Walmart Family Plan, H2O, MetroPCS, Simple Mobile, Cricket. This phone is compatible with Verizon, AT&T, T-Mobile & Sprint. WILL WORK with CDMA Carriers such as Verizon Wireless, Sprint, Boost Mobile, US Cellular & GSM Carriers such as AT&T & T-Mobile. Display: 4.7 inches Retina IPS LCD capacitive touchscreen w/ Ion-strengthened glass, oleophobic coating, Resolution: 750 x 1334 pixels. Memory: 64GB 2GB RAM. Main Camera: 12 MP, f/1.8, 28mm (wide), PDAF, OIS w/ Quad-LED dual-tone flash, HDR - Selfie Camera: 7 MP, f/2.2 w/ Face detection, HDR, panorama. Sensors: Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, Siri natural language commands and dictation. Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot - Bluetooth: 5.0, A2DP, LE - GPS: Yes, with A-GPS, GLONASS, GALILEO, QZSS - USB: 2.0, proprietary reversible connector. Non-removable Li-Ion 1821 mAh battery (6.96 Wh)Dimensions: 5.45 x 2.65 x 0.29 in, Weight: 5.22 oz