Hot Global 5.3 Inch Unlock S7180/s7100 Android 4.1 3g Smart Phone with QHD Screen GPS Dual SIM Dual Core 1ghz 8mp Camera 1gb RAM (Gray) Hot Global 5.3 Inch Unlock S7180/s7100 Android 4.1 3g Smart Phone with QHD Screen GPS Dual SIM Dual Core 1ghz 8mp Camera 1gb RAM (Gray) unlocked compatile with at&t tmobile net10 and simple mobile stardard SIM card Unlocked cell phones are compatible with GSM carriers but are not compatible with CDMA Carriers.