Celkon A900

Karbonn A21

Price
Rs. 10,990.00 Rs. 6,999.00
Capacity
2000 mAH, Li-ion

11.1% more mAH battery than Karbonn A21. More battery capacity reduces the need to charge your battery again. (2000 mAH, Li-ion vs. 1800 mAH, Li-ion)

1800 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 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
,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, a/b/g, Mobile Hotspot Wi-Fi 802.11, b/g/n
Bluetooth
v2.0, 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 Black
Touch Screen
Capacitive Touchscreen Capacitive Touchscreen, Multi-touch
Weight
185 grams 104 grams

81.0 grams Lighter than Karbonn A21. light weight phone is easy to hold and can kept in your pocket for long time. (104 grams vs. 185 grams)

Dimensions
152.8 x 81.7 x 10.20 mm

1.3 mm Thinner than Karbonn A21. Slim mobile phone is easy to handle and looks gorgeous in hand. (152.8 x 81.7 x 10.20 mm vs. 112 x 60.5 x 11.5 mm)

112 x 60.5 x 11.5 mm
Screen Size
5 Inch

11.1% bigger screen size than Karbonn A21. The bigger the screen size is better the user experience of reading and watching movie or video songs. (5 Inch vs. 4.5 Inch)

4.5 Inch
Screen Resolution
480 x 800 pixels 480 x 800 pixels
Pixel Density (sharpness)
187 ppi 207 ppi

10.7% Higher pixel density than Karbonn A21. High pixel density shows sharper text and extremely detailed photos and videos. (207 ppi vs. 187 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 Accelerometer
Applications
Document viewer
GPS
Yes Yes
OS Type
Android Android
Brand
Celkon Karbonn
Model
A900 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
Yes Yes
Processor
1 GHz 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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