Lightahead&reg; LA-906T Unlocked 6.0 inch 960*540 IPS Screen MTK8312 Dual core Android 4.2 WIFI GPS 3G coverage on all US GSM networks like AT&T, T Mobile,Net 10 Simple mogile etc) Dual Sim Mobile Smart Phone (White) One of the rare High Quality smartphones that works 3G and above on all major US GSM carriers like: AT&T T MOBILE SIMPLE MOBILE NET 10 CONSUMER CELLULAR H20 & Many more Huge 6 Inch IPS screen with crystal clear display.Top of the line CPU: MTK 8312 Dual Core, processor, 1.3GHz.Blazing speeds Wi-Fi, Bluetooth, satellite GPS, Browser, Camera Front 2.0MP, Back 5.0MP RAM: 512MB; Nand Flash: 4GB Card Slot: Yes, Supports Micro SD / TF card up to 32GB (not included) Most popular apps already installed including latest playstoe. 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.