ZHYIHONG&reg; Unlocked 4.5 Inch 3G Smart Cellphone MTK6572 1.3GHz Dual core Quadband Dual SIM Dual Standby Anroid4.4 RAM 256MB ROM 2G Cellphone Mobile Phone 3G Phone Smartphone WiFi GPS Bluetooth (White) 4.5 Inch TFT, capacitive touch screen 800 x 480 pixels 3G smartphone, Android 4.4 CPU:MTK6572W, Cortex A7 Dual core, 1.3GHz; GPU: Mali-400 Dual cameras Front 0.3 MP Back 2.0 MP Dual SIM, WiFi, Bluethooth, GPS 3G (WCDMA 850/2100) and 2G Quad Band International Version (GSM 850/900/1800/1900) network of US Compatible Nationwide on all GSM Networks including AT&T, T-Mobile, H20,Cricket, Tracfone, Straight Talk and others T-Mobile: Lyca, Speedtalk, Go Smart, Simple Mobile, Net10, Straight Talk, Solavei, Ultra Mobile, Telcel America, Walmart Family Mobile. Note:A SIM card need to be purchased separately. Some network company provide the GSM/WCDMA sim card and CDMA sim card also, please buy the GSM/WCDMA SIM card. Do not buy the CDMA SIM card from them.