Specification and Price of Karbonn A21

Class	Smartphone
Status	Available, Released in 2012.
SIM Type	Dual SIM
Network	2G-GSM 900/1800/1900 MHZ (SIM 1 & SIM 2) 3G-HSDPA 2100 MHZ
Operating System	Android v4 (Ice Cream Sandwich)
Processor	1.2 GHz ARM Cortex-A5, Dual Core
Browser	HTML
Form Factor	Bar

Dimension (HxWxD)

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Size	4.5 inch
Technology	High definition multi touch capacitive Screen
Resolution	WVGA, 480 x 800 Pixels
Colors	256K

Internal Memory	4GB
External Memory	MicroSD, expandable upto 32 GB
RAM	512 MB RAM

Type	1800 mAh
Talk Time	Upto 5 Hours
Stand-by Time	Upto 200 Hours

Primary Camera(Rear)	5 MP
Secondary Camera(Front)	1.3 MP
Resolution	2592 x 1944 pixels
Video	Yes
Features	Auto Focus camera with LED flash, Geo-tagging and Face detection.

GPRS	Yes
EDGE	Yes
3G	Yes, 7.2 Mbps HSDPA
Bluetooth	Yes, v2.1
USB	Yes
Wi-Fi	Yes, 802.11 b/g/n
GPS	Yes, A-GPS with Google Maps

Music Player	Yes, Supports MIDI, WAV, MP3, AMR, AAC, AAC+
MP3 Ringtone	Yes
Poly Ringtone	Yes
LoudSpeaker	Yes
Video Player	Yes, Supports MP4, AVI, 3GP, H.263, H.264

SMS	Yes
MMS	Yes
Email	Yes
Push mail	Yes
Instant Messaging	Yes

Document Viewer	Yes
Voice Mail	Yes

Java	Yes, via Java MIDP emulator
Sensors	Light Sensor, 3D G-Sensor, Proximity Sensor
FM Radio	No
Unique Features	SIM1 has 3G Support and SIM2 has 2G Support.
Additional Features	Customizable Home Screen, Live Motion Wallpapers, MMS Enabled, Voice Navigation, Games, Thinksoft Office, Wi-Fi Direct, Calculator, Alarm Clock, Stopwatch, World Times, Voice Recorder, Multi Language Support, Mobile TV, Caller ID with Photo, Power On / Off Animation, STK Enabled.

Colors

Pearl White.