IRULU Smartphone Universe 1(U1) 5 Inch Android 4.2 MTK6572 Dual core 512MB/4GB dual sims dual camera 3G WI-FI Cellphone (White) IRULU Smartphone Universe 1(U1) 5 Inch Android 4.2 MTK6572 Dual core 512MB/4GB dual sims dual camera 3G WI-FI Cellphone (White) 1. MTK6572M 1.0GHz Dual core 2. Dual Sim card: Support Dual sims dual standby(1* Standard SIM, 1* Micro SIM) 3. 5.0MP Rear camera,2.0MP Front camera:Sensor Model,Distance Sensor for front camera,Sensor model,AF/Flash light for rear camera,Shoot bright pictures,restoring true colors,bring more pictures of play,self-love is more suitable for you. 4. Feature:3G,WIFI,GPS,FM,Bluetooth,Ebook,Email,Messaging,wallpapers,calendar,calculator,clock,camera,etc 5. DATA speed 21Mb/s 3G: WCDMA 850/1900; GSM: 850/900/1800/1900 Unlocked smartphone: Nationwide AT&T: Cricket Wireless, Straight Talk, Net10, H20 Wireless, 420 Wireless, Black Wireless, Consumer Cellular, Pure TalkUSA, Red Pocket, Telcel America. T-Mobile: MetroPCS, Lyca, Speedtalk, Go Smart, Simple Mobile, Net10, Straight Talk, Solavei, Ultra Mobile, Telcel America, Walmart Family Mobile. Unlocked cell phones are compatible with GSM carriers but are not compatible with CDMA Carriers.