Alcatel OT-991D vs Karbonn A21

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Comparing the Alcatel OT-991D vs Karbonn A21 across performance, display, camera, battery and storage 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 Alcatel OT-991D runs at 0.8 GHz, making Karbonn A21 the better performer.


Display: Karbonn A21 offers a screen size of 4.5 inches, while Alcatel OT-991D offers 4 inches, making Karbonn A21 the larger display of the two. Alcatel OT-991D features a LCD display compared to Karbonn A21's TFT, making Alcatel OT-991D the better display of the two.


Rear Camera: Karbonn A21 offers a higher rear camera resolution with 5 MP, while Alcatel OT-991D offers 3.2 MP, making Karbonn A21 better for rear camera photography.


Battery: Karbonn A21 offers a higher battery capacity with 1800 mAh, while Alcatel OT-991D offers 1500 mAh, making Karbonn A21 better for longer battery life.


Storage: Karbonn A21 offers higher internal storage with 4 GB, while Alcatel OT-991D offers 150 GB, making Karbonn A21 the better option for storage.

...read more
Alcatel OT-991D
₹6,839
(Discontinued)
Karbonn A21
₹9,899
(Out of Stock)
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Summary

Spec Score

N/A
52%

Release Date

17 Jun, 2012
11 Oct, 2012

Performance

N/A
N/A
Snapdragon S4 Play
(upto 800 MHz)
(upto 1.2 GHz)
N/A
512 MB RAM

Display

N/A
4 inches (10.16 cm)
4.5 inches (11.43 cm)
LCD
TFT
320x480 px
480x800 px

Rear Camera

N/A
3.2 MP
Primary Camera
5 MP
Primary Camera

Front Camera

N/A
N/A
1.3 MP

Battery

N/A
1500 mAh
1800 mAh

Storage

150 MB
4 GB

User Ratings

N/A
3.8/5
(316 ratings)

User Feedback

General

Launch Date

N/A
Oct 11, 2012
(Official)

Operating System

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

Performance

Performance Rating

N/A
Poor

Chipset

N/A
Qualcomm Snapdragon S4 Play MSM8225

Processor

800 MHz
Dual core, 1.2 GHz, Cortex A5

Graphics (GPU)

N/A
Adreno 203

RAM

N/A
512 MB

Display

Display Rating

N/A
Very Good

Display Type

LCD
TFT

Screen Size

4 inches  (10.16 cm)
4.5 inches  (11.43 cm)

Resolution

320x480 px
480x800 px

Pixel Density

144 ppi
207 ppi

Screen to Body Ratio (calculated)

57.43 %
84.98 %

Design

Height

122 mm
112 mm

Width

68 mm
60.5 mm

Thickness

10.80 mm
11.5 mm

Weight

131.3 grams
104 grams

Rear Camera

Rear Camera Rating

N/A
Below Avg

Resolution

3.2 MP
Primary Camera
5 MP
Primary Camera

Autofocus

N/A
Yes

Flash

Yes
Yes LED Flash

Image Resolution

N/A
2592 x 1944 Pixels

Shooting Modes

Continuous Shooting
N/A

Camera Features

Digital Zoom
Smile detection
Digital Zoom

Front Camera

Front Camera Rating

N/A
Poor

Resolution

N/A
1.3 MP
Primary Camera

Battery

Battery Rating

N/A
Very Good

Capacity

1500 mAh
1800 mAh

Battery Type

Li-ion
Li-ion

TalkTime

Up to 10(3G) / Up to 12(2G)
Up to 5 Hours(2G)

Storage

Internal Storage

150 MB
4 GB

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 4 (802.11 b/g/n)

Wi-Fi Features

Mobile Hotspot
N/A

Bluetooth

Yes v4
Yes v2.1

GPS

Yes with A-GPS
Yes

Multimedia

Audio Jack

N/A
3.5 mm

Sensors

Other Sensors

Proximity sensor Accelerometer Compass
Accelerometer

Applications

Document Viewer
N/A