Karbonn A21 smartphone was launched in December 2012. The phone comes with a 4.50-inch touchscreen display with a resolution of 480 pixels by 800 pixels.
The Karbonn A21 is powered by 1.2GHz Qualcomm Snapdragon processor and it comes with 512MB of RAM. The phone packs 4GB of internal storage that can be expanded up to 32GB via a microSD card. As far as the cameras are concerned, the Karbonn A21 packs a 5-megapixel primary camera on the rear and a 1.3-megapixel front shooter for selfies.
The Karbonn A21 runs Android 4 and is powered by a 1800mAh non removable battery.
The Karbonn A21 is a dual SIM (GSM and GSM) smartphone that accepts Regular and Regular. Connectivity options include GPS, Bluetooth and 3G.