Samsung Galaxy Ace Duos S6802B - Factory Unlocked, Dual SIM, Android Phone 3g bands: 850/2100 - International Version/Warranty Black 2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 3G Network HSDPA 850 / 2100 MHz DISPLAY Type TFT capacitive touchscreen, 16M colors Size 320 x 480 pixels, 3.5 inches (~165 ppi pixel density) Multitouch Yes - TouchWiz UX UI Speed HSDPA, 7.2 Mbps WLAN Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Bluetooth Yes, v3.0 with A2DP USB Yes, microUSB v2.0 CAMERA Primary 5 MP, 2592x1944 pixels, autofocus Features Geo-tagging, smile detection Video Yes, VGA@30fps Secondary No OS Android OS, v2.3 (Gingerbread) CPU 832 MHz Sensors Accelerometer, proximity, compass