Karbonn A21
Updated: 08-11-2013 12:22:36



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All time: 23611 views


₹ 6,200
Key Specifications See full specifications
OS Android OS, v4.0 (Ice Cream Sandwich)
RAM 512 MB
Memory Card Micro SD Card, Up to 32 GB
Internal Memory 4 GB
Display Size 4.5 inch
Rear Camera 5.0 MP
Front Camera 1.3 MP
Battery Standard Li-ion 1800 mAH
Processor 1.2 GHz Dual Core Qualcomm Snapdragon Processor
Things we Like and Dislike about Karbonn A21


  • Poor Battery Back-up


  • FM Radio
  • Dual SIM
  • Auto-focus Camera
  • LED Flash

Top Offers Today

Best Offers Today on Online Stores
Item Seller Shipping Info More Info Price
Karbonn A21 Plus N/A N/A
₹ 9,000
31 % off
₹ 6,250
Karbonn A21 Plus (Black) IndiatimesShopping N/A N/A
₹ 7,205
20 % off
₹ 5,790
Karbonn A21+ (White) N/A N/A
₹ 4,191
Karbonn A21 Plus N/A N/A
₹ 5,050
Karbonn A21+ White N/A N/A
₹ 5,899

General Information

  • AnnouncedOct, 2012
  • Form FactorBar
  • Box ContentCharger, Headset, USB Cable
  • ShadesPearl White
  • OSAndroid OS, v4.0 (Ice Cream Sandwich)
  • LanguagesEnglish, Hindi, Multi Languages


  • Accelerometer Sensor

Our Ratings

  • Appearance
  • Ease of Use
  • Features
  • Performance
  • Value For Money
  • Overall Rating


  • RAM512 MB
  • Call Log
  • Memory CardMicro SD Card, Up to 32 GB
  • Phonebook Capacity
  • Internal Memory4 GB


  • T9 Dictionary
  • QWERTY Keypad
  • MessagingSMS, MMS, Email, IM


  • Vibration
  • RingtonesPolyphonic, MIDI, MP3


  • Display Colours16 Million
  • Touchscreen
  • Display Resolution (H)480 pixels
  • Display Resolution (V)800 pixels
  • Display Size4.5 inch
  • SenseUI
  • Multi-Touch
  • Handwriting Recognition
  • Scratch Resistant
  • Pixels Per Inch Density207 ppi
  • Display TypeTFT


  • Rear Camera5.0 MP
  • Camera Resolution2592x1944 pixels
  • Front Camera1.3 MP
  • GeoTagging
  • Face Detection
  • Smile Detection
  • Auto Focus
  • Camera FlashLED
  • Digital Zoom
  • Resolution (Front)1280x1024 pixels
  • Primary Camera5MP, 2560X1920 Pixels, Digital Zoom with LED Flash


  • Radio
  • Music Player
  • Video Player
  • Voice Recording
  • Image Viewer
  • Video Recording
  • 3.5mm Jack/Port
  • Games

Basic Features

  • Javavia Java MIDP emulator
  • Calendar
  • Voice Dialing
  • Voice Memo
  • Sync
  • SyncML
  • Clock
  • Alarm Clock
  • Organiser
  • In-built Torch
  • Office Applications
  • Trackball

Internet & Connectivity

  • Infrared
  • Bluetoothv2.1 with A2DP
  • USB
  • Handsfree
  • GPS
  • A-GPS
  • SIM TypeMini
  • Networks2G + 3G, Dual SIM, Dual Standby
  • GPRS
  • Data SpeedHSDPA, 7.2 Mbps
  • EDGE
  • 2G NetworkGSM 900/1800/1900 MHz
  • 3G NetworkHSDPA 2100 MHz
  • Wi-Fi802.11 b/g/n


  • Maximum Standby TimeUpto 200 hours
  • Maximum TalktimeUpto 5 hours
  • BatteryStandard Li-ion 1800 mAH


  • Processor1.2 GHz Dual Core Qualcomm Snapdragon Processor


Budget Android Smartphone

30 Mar, 13 11:31 AM

Overview of Karbonn A21

Android OS has transformed the perception of a smartphone altogether. Due to the fact that this is an open source operating system, the days of corporate giants monopolizing the smartphone market are over. Today, in India, you can easily find an Android phone from Rs 6000 to Rs 50000. There is a myriad of under Rs. 10000 phones available in the market with features bound to surprise you! One such phone is Karbonn A21 that comes fully loaded with chic specs and a design you’ll not find in this sort of budget anywhere else.

Karbonn A21 Design and Build Quality

The Karbonn A21 has been specifically released for the Indian market. The phone tops much of its competition by delivering a 4.5 inch screen with a classy HTC Sensation kind of back cover. This helps Karbonn A21 knock out its competition when it comes to looks and feel.

Karbonn A21 Specifications

The Karbonn A21 comes packed with a 1.2 GHz dual core processor and like most other phones from the same category, it supports dual-SIM. The phone operates on standard GSM frequencies and allows simultaneous usage of both SIM cards. Having said this, the screen is also an impressive factor. The 4.5 Inch TFT capacitive display ensures a pretty-much lag free experience. To us, the miniature 512 MB RAM is a source of woe for sure. We certainly believe that the RAM should have been 1 GB at least to support the dual core processor.

User Interface of Karbonn A21

The phone features Android Ice Cream Sandwich OS with very little customization done from manufacturer. This is also a great thing since manufacturer customization and theming of the Android OS sometimes result in lag. Like all other Android phones, the phone comes preloaded with Google Apps as well as native Android gallery, camera, email, dialler and SMS app.

Camera, Video Recording and Multimedia performance

The primary camera aka the back camera of the phone is 5 MP. The front cam is VGA and can be easily used to video call over Skype, Viber and Tango apps. On the other hand, the primary camera isn’t that powerful but you can definitely use it for casual photography or video recording. However, there are many apps in the Google Play store that let you polish your camera and take better pictures or videos.

Karbonn A21 Memory

Karbonn A21 comes with 4GB internal storage. Out of this storage, 2GB are dedicated for user operations while the other half is meant for internal Android operations. There is a microSD card slot that lets you expand the user memory up to 32 GB.


All in all, the Karbonn A21 is a good phone for an under 10K Android gadget. However, the shortage of RAM and battery drainage are a source of concern, but we are sure there are apps in Google Play store that can help you with freeing RAM frequently as well as control the battery drainage. The phone doesn’t give a phablet look; however, if you are looking to exceed the screen size, then going for Micromax A110 might be a good idea.

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Karbonn A21 Comments

User Comments Ordered by Popularity


Smart Tab

28-01-2013 11:19:00

i am use Karbonn A21

Smart Tab

28-01-2013 11:18:00

karbonn A21 is best

Smart Tab

28-01-2013 11:17:00

you r wrong

Vamshi Krishna

24-01-2013 12:08:00


Vamshi Krishna

18-01-2013 13:59:00

masth.. <3


05-01-2013 16:39:00

very bad...

Vamshi Krishna

28-12-2012 14:09:00

nice mobile.


24-12-2012 11:37:00

Dosto plz es mobile ko mat kharidna .........ye 720p hd video run nhi karta h or bhi kai problem h like msg me...internet browser me


18-12-2012 13:18:00

i like karbonn very much thank a lot


11-12-2012 14:46:00

This is a good phone. I am using it worth buying.


11-12-2012 12:10:00

dont refer this page, this mobile has torch light but written as no torch


11-12-2012 05:22:00



11-12-2012 02:27:00

i don't like carbon

Mrinmoy Dey

30-11-2012 11:50:00

gud one ...if u look d price


25-11-2012 18:30:00

Buy Micromax A110 much better than this...

sonia tyagi

24-11-2012 14:14:00

its not good waist of money....no games ,low camera qualities,not complete facility like you cannot add contact image,only touch is better......without internet a21 is nothing

Kíshän ßåggã

22-11-2012 11:20:00

one of the best phone with a large screen ... i just love thsi phone in this price ;)


21-11-2012 10:37:00

M using it and it is good phone but little slow in flow and processing.


18-11-2012 15:43:00

is it 3g enable, as it is given there in the specification that its 3g enable, but here its given not


14-11-2012 08:29:00

Not good..

jai singh

09-11-2012 16:50:00

karbonn A21 or htc explorer

Sarang Sasi Kumar

01-11-2012 12:07:00

donot have 3g


30-10-2012 14:23:00

yes it has fm and is awesome phn m using it

Rakesh Saini

19-10-2012 12:12:00

Karbonn ka A21 best phone hai

Rakesh Saini

19-10-2012 12:10:00



19-10-2012 05:34:00

dont refer this page, this mobile is 3g and its written here NA for 3g, no proper details given


16-10-2012 08:47:00

I think it has no FM Radio "Check on Karbonn Site"


15-10-2012 11:59:00

yes it is the best phone in 10k

Rahul Vashistha

15-10-2012 09:23:00

is karbonn a21 best mobile against micromax a100?

Rahul Vashistha

15-10-2012 09:22:00

karbonn a21 kya best phone hai . Micromax a100 ke mukaable main.please tell me.

Rahul Vashistha

15-10-2012 09:20:00

main karbonn a21 kharidna chahta hoon par kya ye best phone hai or adroid phone ke compition me in 10000 ki range main

Rahul Vashistha

15-10-2012 09:19:00

kya karbon ke phone best hai


14-10-2012 21:54:00

I wanna buy this cell its a complete phone..