Karbonn A21 vs Celkon A900

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Comparing the Karbonn A21 vs Celkon A900 across performance, display, camera and battery to help determine the better smartphone.

Here is the summary of the results:

Performance: Karbonn A21 runs at a higher processing speed of 1.2 GHz, while Celkon A900 runs at 1.0 GHz, making Karbonn A21 the better performer.


Display: Celkon A900 offers a screen size of 5 inches, while Karbonn A21 offers 4.5 inches, making Celkon A900 the larger display of the two. Celkon A900 features a LCD display compared to Karbonn A21's TFT, making Celkon A900 the better display of the two.


Rear Camera: Both Karbonn A21 and Celkon A900 feature a 5 MP primary rear camera.


Front Camera: Karbonn A21 offers a higher front camera resolution with 1.3 MP, while Celkon A900 offers 0.3 MP, making Karbonn A21 better for front camera photography.


Battery: Celkon A900 offers a higher battery capacity with 2000 mAh, while Karbonn A21 offers 1800 mAh, making Celkon A900 better for longer battery life.

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Karbonn A21
₹9,899
(Out of Stock)
Celkon A900
₹4,863
(Discontinued)
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Summary

Spec Score

52%
N/A

Release Date

11 Oct, 2012
01 Nov, 2012

Performance

N/A
Snapdragon S4 Play
N/A
(upto 1.2 GHz)
(upto 1 GHz)
512 MB RAM
512 MB RAM

Display

N/A
4.5 inches (11.43 cm)
5 inches (12.7 cm)
TFT
LCD
480x800 px
480x800 px

Rear Camera

N/A
5 MP
Primary Camera
5 MP
Primary Camera

Front Camera

N/A
1.3 MP
0.3 MP

Battery

N/A
1800 mAh
2000 mAh

Storage

4 GB
N/A

User Ratings

3.8/5
(316 ratings)
N/A

User Feedback

General

Launch Date

Oct 11, 2012
(Official)
N/A

Operating System

Android v4 (Ice Cream Sandwich)
Android v2.3 (Gingerbread)

Performance

Performance Rating

Poor
N/A

Chipset

Qualcomm Snapdragon S4 Play MSM8225
N/A

Processor

Dual core, 1.2 GHz, Cortex A5
1 GHz

Graphics (GPU)

Adreno 203
N/A

RAM

512 MB
512 MB

Display

Display Rating

Very Good
N/A

Display Type

TFT
LCD

Screen Size

4.5 inches  (11.43 cm)
5 inches  (12.7 cm)

Resolution

480x800 px
480x800 px

Pixel Density

207 ppi
187 ppi

Screen to Body Ratio (calculated)

84.98 %
56.95 %

Design

Height

112 mm
152.8 mm

Width

60.5 mm
81.7 mm

Thickness

11.5 mm
10.20 mm

Weight

104 grams
185 grams

Rear Camera

Rear Camera Rating

Below Avg
N/A

Resolution

5 MP
Primary Camera
5 MP
Primary Camera

Autofocus

Yes
N/A

Flash

Yes LED Flash
Yes Flash LED Flash

Image Resolution

2592 x 1944 Pixels
2592 x 1944 Pixels

Shooting Modes

N/A
Continuous Shooting

Camera Features

Digital Zoom
Digital Zoom
Smile detection

Front Camera

Front Camera Rating

Poor
N/A

Resolution

1.3 MP
Primary Camera
0.3 MP
Primary Camera

Camera Features

N/A
Fixed Focus

Battery

Battery Rating

Very Good
N/A

Capacity

1800 mAh
2000 mAh

Battery Type

Li-ion
Li-ion

TalkTime

Up to 5 Hours(2G)
Up to 8.33(2G)

Storage

Internal Storage

4 GB
N/A

Expandable Storage

Yes Up to 32 GB
Yes Up to 32 GB

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

Network Support

5G Not Supported
5G Not Supported

Wi-Fi

Yes Wi-Fi 4 (802.11 b/g/n)
Yes Wi-Fi 3 (802.11 a/b/g)

Bluetooth

Yes v2.1
Yes v2

GPS

Yes
Yes

Multimedia

Audio Jack

3.5 mm
N/A

Sensors

Other Sensors

Accelerometer
Accelerometer

Applications

N/A
Document viewer