Karbonn A21 is a Smart Phone that has been powered by Dual Core chipset and comes with 512MB RAM. A21 contains 4 GB of internal storage. The phone has 4.5-inch touchscreen display along with the resolution of 480 x 800 pixels. Concerning the camera, Karbonn A21 packs 5 MP camera on the rear as well as 1.3MP camera on the front. It comes in Pearl White color variants.

Moreover, Karbonn A21 will be running on Android OS, v4.0 (Ice Cream Sandwich) and will have Li-Ion 1800 mAh battery. The phone will weigh N/A, and its dimensions will be N/A vis-à-vis height x width x thickness. Karbonn A21 is a dual SIM Smart Phone, and its connectivity options will include GPRS, EDGE, WLAN, Bluetooth, NFC, microUSB v2.0,

Features and Specification

Design
Design	Device Type	Smart Phone
	OS	Android OS, v4.0 (Ice Cream Sandwich)
	Dimension	N/A
	Weight	N/A
Technology
Technology	2G Network	GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
	3G Network	HSDPA 2100
	SIM	Dual SIM
	Announced	2012
	Status	Available.
Display
Display	Type	TFT capacitive touchscreen, 256K colors
	Size	4.5 inches
	Multi-touch	Yes
Photography
Photography	Rear Camera	5 MP, 2592 Ñ… 1944 pixels, autofocus, LED flash
	Features	Geo-tagging, face detection
	Video	Yes
	Front Camera	1.3 MP
Memory
Memory	Card slot	microSD, up to 32 GB
	Internal	4 GB, 512 MB RAM
Sound
Sound	Alert types	Vibration; MP3, WAV ringtones
	Loudspeaker	Yes
	3.5mm jack	Yes
Connectivity
Connectivity	GPRS	Yes
	EDGE	Yes
	Speed	HSPA 7.2/0.384 Mbps
	WLAN	Wi-Fi 802.11 b/g/n
	Bluetooth	v2.1, A2DP
	USB	microUSB v2.0
Battery
Battery	Capacity	Li-Ion 1800 mAh battery
	Stand-by	Up to 200 h
	Talk time	Up to 5 h
Features
	CPU	Dual-core 1.2 GHz
	Sensors	Accelerometer, proximity
	Messaging	SMS(threaded view), MMS, Email, Push Email, IM
	Browser	HTML
	Radio	No
	GPS	Yes, with A-GPS
	Java	No
	Colors	Pearl White
	Others	- MP3/AAC/WMA/WAV player - MP4/WMV/H.264 player - Document viewer