Karbonn A12 is a dual-SIM smartphone running on Android ICS. The handset has a big 4.5 inch capacitive touchscreen that takes the viewing experience to another level. For the speed lovers, it has got a super fast 1GHz processor, backed up well by a 512MB of RAM. For Internet connectivity, the device has Wi-Fi & 2G/3G; for data transfer, there is Bluetooth and USB connectivity. The 1800 mAh battery of the handset offers ample talk time and standby time to users. Other features include, ambient light sensor, proximity sensor, Kingsoft office, lots of pre-loaded apps, and 32 GB expandable memory.