Building on the success of Samsung"s Galaxy S, Samsung"s new Galaxy S Duos offers the style and design sophistication, high-end performance and incredible usability with the added convenience of Dual SIM access! Enjoy the convenience of choosing the SIM with better coverage, a stronger signal, cheaper pricing plan, not to mention the ability to keep your work and personal calls separate - with all the goodies the Galaxy S Duos has to offer and more! Features 3G Network - HSDPA 900 / 2100 - SIM 1 & SIM 2 SIM - Dual SIM (Mini-SIM, dual stand-by) OS - Android OS, v4.0 (Ice Cream Sandwich) Chipset - Qualcomm MSM7227A Snapdragon CPU - 1GHz Cortex-A5 GPU - Adreno 200 Display - 4.0-inch TFT capacitive touchscreen (800 x 480 pixels, ~233 ppi pixel density) Card slot - microSD, up to 32 GB Internal memory - 4 GB (1.8 GB user available), 768 MB RAM Camera - Rear 5MP, 2592 x 1944 pixels, autofocus, LED flash / Front 0.3MP VGA WLAN - Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Bluetooth - Yes, v3.0 with A2DP Sensors - Accelerometer, proximity, compass Radio - Stereo FM radio with RDS GPS - Yes, with A-GPS support Ports - microUSB v2.0, 3.5mm jack Battery - 1500mAh Li-ion (up to 330h on Stand-by, up to 7h 25min on Talk-time) Dimensions - 121.5 x 63.1 x 10.5 mm (4.78 x 2.48 x 0.41 in) Weight - 120 g (4.23 oz)