Karbonn A21

Karbonn
Last Updated: 9th December 2025

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Key Specs

Display 4.50-inch (480x800)
Processor Qualcomm Snapdragon S4 Play
Front Camera 1.3MP
Rear Camera 5MP
RAM 512MB
Storage 4GB
Battery Capacity 1800mAh
OS Android 4

Market Status Released

Release Date December 2012

Karbonn A21 Summary

Karbonn A21 mobile was launched in December 2012. The phone comes with a 4.50-inch touchscreen display offering a resolution of 480x800 pixels. Karbonn A21 is powered by a 1.2GHz one-core Qualcomm Snapdragon S4 Play (MSM8225) processor. It comes with 512MB of RAM. The Karbonn A21 runs Android 4 and is powered by a 1800mAh non-removable battery.

As far as the cameras are concerned, the Karbonn A21 on the rear packs 5-megapixel camera. It sports a 1.3-megapixel camera on the front for selfies.

Karbonn A21 is based on Android 4 and packs 4GB of inbuilt storage that can be expanded via microSD card (up to 32GB). The Karbonn A21 is a dual-SIM (GSM and GSM) mobile that accepts Regular and Regular cards. It was launched in Pearl White colour.

Connectivity options on the Karbonn A21 include GPS and 3G.

As of 9th December 2025, Karbonn A21 price in India starts at Rs. 6,677.

Karbonn A21 Full Specifications

General

Brand	Karbonn
Model	A21
Price in India	₹6,677
Release date	December 2012
Form factor	Bar
Battery capacity (mAh)	1800
Removable battery	No
Colours	Pearl White

Display

Screen size (inches)	4.50
Touchscreen	Yes
Resolution	480x800 pixels

Hardware

Processor	1.2GHz one-core
Processor make	Qualcomm Snapdragon S4 Play (MSM8225)
RAM	512MB
Internal storage	4GB
Expandable storage	Yes
Expandable storage type	microSD
Expandable storage up to (GB)	32

Camera

Rear camera	5-megapixel
Rear flash	LED
Front camera	1.3-megapixel

Software

Operating system

Android 4

Connectivity

Wi-Fi	No
GPS	Yes
Bluetooth	Yes
NFC	No
Infrared	No
USB OTG	No
FM	No
Number of SIMs	2
Wi-Fi Direct	No
Mobile High-Definition Link (MHL)	No
SIM 1
SIM Type	Regular
GSM/CDMA	GSM
3G	Yes
4G/ LTE	No
Supports 4G in India (Band 40)	No
SIM 2
SIM Type	Regular
GSM/CDMA	GSM
3G	Yes
4G/ LTE	No
Supports 4G in India (Band 40)	No