Karbonn K21

Karbonn
Last Updated: 15th November 2026

Overview
Specs
Comparisons
User Reviews

₹2,385 Notify When Available

Compare Notify When Available

Key Specs

Display 2.20-inch (176x220)
Processor one-core
Front Camera No
Rear Camera 1.3MP
Battery Capacity 1000mAh
OS Proprietary

Market Status Released

Release Date December 2011

Karbonn K21 Summary

Karbonn K21 mobile was launched in December 2011. The phone comes with a 2.20-inch display offering a resolution of 176x220 pixels. Karbonn K21 is powered by an one-core processor. The Karbonn K21 runs Proprietary and is powered by a 1000mAh removable battery.

As far as the cameras are concerned, the Karbonn K21 on the rear packs 1.3-megapixel camera.

Karbonn K21 is based on Proprietary, and supports storage expansion via microSD card (up to 8GB). The Karbonn K21 is a dual-SIM (GSM and GSM) mobile that accepts Regular and Regular cards. The Karbonn K21 measures 111.50 x 47.30 x 14.30mm (height x width x thickness) and weighs 80.00 grams. It was launched in Coffee and Grey colours.

Connectivity options on the Karbonn K21 include FM radio.

As of 15th November 2026, Karbonn K21 price in India starts at Rs. 2,385.

Karbonn K21 Full Specifications

General

Alternate names	K21 Radio jockey
Brand	Karbonn
Model	K21
Price in India	₹2,385
Release date	December 2011
Form factor	Bar
Dimensions (mm)	111.50 x 47.30 x 14.30
Weight (g)	80.00
Battery capacity (mAh)	1000
Removable battery	Yes
Colours	Coffee, Grey

Display

Screen size (inches)	2.20
Touchscreen	No
Resolution	176x220 pixels

Hardware

Processor	one-core
Processor make
Expandable storage	Yes
Expandable storage type	microSD
Expandable storage up to (GB)	8

Camera

Rear camera	1.3-megapixel
Rear flash	No
Front camera	No

Software

Operating system

Proprietary

Connectivity

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