Unlocked Cubot GT72 4.0 inch Android 4.4 Smartphone MTK6572 Dual Core Mobile Phone GPS WiFi Cellphone (GT72 White) MTK6572 Dual core CPU, 1.2GHz. 4 inch big screen, resolution: WVGA, 800x480 pixels. Smart phone, fashion design, multi-color back shell, dimension of 125 x 62 x 9.9mm. Operating system: Android 4.2.2. Dual Cameras, CMOS sensor provide good image quality, front camera 0.3MP, back camera 2.0MP with flashlight. Built-in GPS, easy positioning your location. Network: 2G: GSM 900/1800MHz. Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.