Celkon A90

Karbonn A21

Price
Not Available Rs. 6,999.00
Capacity
1420 mAH, Li-ion 1800 mAH, Li-ion

26.8% more mAH battery than Karbonn A21. More battery capacity reduces the need to charge your battery again. (1800 mAH, Li-ion vs. 1420 mAH, Li-ion)

TalkTime
Up to 8.33 Hours(2G) Up to 5 Hours(2G)
Stand By Time
Up to 8.33 Hours(2G) Up to 200 Hours(2G)
Main Camera
5 MP, Auto focus 5 MP, Auto focus
Front Camera
0.3 MP 1.3 MP

333.3% more mega pixels (MP) on front camera than Karbonn A21. More front camera resolution means better selfies picture. Front facing cameras also used for video call on Skype (1.3 MP vs. 0.3 MP)

Flash
Smart LED ,LED LED
Zoom
Digital Zoom Digital Zoom
Camera Features
Smile detection, Scenes, Continuos Shooting, Multi Shot Auto Focus
GPRS
Yes Yes
EDGE
Yes Yes
3G
HSPA , EV-DO , Rev.A HSDPA 7.2 Mbit/s, HSUPA
Wi-Fi
Wi-Fi 802.11, b/g, Mobile Hotspot Wi-Fi 802.11, b/g/n
Bluetooth
v3.1, A2DP v2.1, A2DP
USB Connectivity
No USB Port, USB 2.0, microUSB 2.0
Operating Frequency
GSM 1800 / 1900 / 900 MHz UMTS 2100 MHz | GSM 1800 / 1900 / 900 MHz
Colours
Black,White Black
Touch Screen
Capacitive Touchscreen Capacitive Touchscreen, Multi-touch
Weight
128 grams 104 grams

24.0 grams Lighter than Karbonn A21. light weight phone is easy to hold and can kept in your pocket for long time. (104 grams vs. 128 grams)

Dimensions
128 x 66 x 11.50 mm 112 x 60.5 x 11.5 mm
Screen Size
4 Inch 4.5 Inch

12.5% bigger screen size than Karbonn A21. The bigger the screen size is better the user experience of reading and watching movie or video songs. (4.5 Inch vs. 4 Inch)

Screen Resolution
480 x 800 pixels 480 x 800 pixels
Pixel Density (sharpness)
233 ppi

12.6% Higher pixel density than Karbonn A21. High pixel density shows sharper text and extremely detailed photos and videos. (233 ppi vs. 207 ppi)

207 ppi
Display Type
LCD TFT
Box Contents
Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card
Sensors
Accelerometer, Proximity sensor, Compass Accelerometer
Applications
Document Viewer
GPS
with A-GPS Yes
OS Type
Android Android
Brand
Celkon Karbonn
Model
A90 A21
Operating System
Android v2.3 (Gingerbread) Android v4 (Ice Cream Sandwich)
SIM Slot(s)
Dual SIM, GSM+GSM Dual SIM, GSM+GSM
Loudspeaker
Yes
Audio Jack
3.5 mm
FM Radio
Stereo FM, Recording option, RDS, FM Transmiter Yes
Processor
650 MHz Dual core, 1.2 GHz, Qualcomm Snapdragon
RAM
512 MB 512 MB
Expandable Memory
Up to 32 GB Up to 32 GB
Internal Memory
4 GB
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