5.5 inch big LCD screen, Super thin Thickness 8.7mm · Compatible: 3G WCDMA networks and all 2G GSM Networks including (2G/3G) AT&T and (2G/3G) T-Mobile; Not compatible: CDMA network, such as Sprint and Verizon  · Dual-core 1.2GHz CPU · 5MP rear camera, plus front facing camera · Andriod 4.2.2 Product Features 5.5 inch big LCD screen, Super thin Thickness 8.7mm Compatible: 3G WCDMA networks and all 2G GSM Networks including (2G/3G) AT&T and (2G/3G) T-Mobile; Not compatible: CDMA network, such as Sprint and Verizon Dual-core 1.2GHz CPU 5MP rear camera, plus front facing camera Andriod 4.2.2