Karbonn K451 vs Karbonn K21

Comparing the Karbonn K451 vs Karbonn K21 across display, camera and battery to help determine the better smartphone.

Here is the summary of the results:

Display: Karbonn K21 offers a screen size of 2.2 inches, while Karbonn K451 offers 2 inches, making Karbonn K21 the larger display of the two. Both Karbonn K451 and Karbonn K21 feature the same LCD display.

Rear Camera: Both Karbonn K451 and Karbonn K21 feature a 0.1 MP primary rear camera.

Battery: Karbonn K451 offers a higher battery capacity with 1100 mAh, while Karbonn K21 offers 1000 mAh, making Karbonn K451 better for longer battery life.

Karbonn K451

₹1,899

(Discontinued)

Karbonn K21

₹2,385

(Discontinued)

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Summary

Release Date

N/A	21 Dec, 2011

User Ratings

1/5

(1 rating)

N/A

User Feedback

Display

Display Type

LCD

Screen Size

2 inches (5.08 cm)

2.2 inches (5.59 cm)

Resolution

176x220 px

Pixel Density

141 ppi

128 ppi

Screen to Body Ratio (calculated)

27.43 %

28.88 %

Design

Height

102 mm

111.5 mm

Width

45 mm

47.3 mm

Thickness

14.50 mm

14.30 mm

Weight

80 grams

Rear Camera

Resolution

0.1 MP
Primary Camera

0.3 MP
Primary Camera

Flash

Yes

Shooting Modes

N/A	Continuous Shooting

Camera Features

N/A	Digital Zoom Smile detection

Battery

Capacity

1100 mAh

1000 mAh

Battery Type

Li-ion

TalkTime

Up to 4(2G)

Up to 3(2G)

Storage

Internal Storage

N/A

123 KB

Expandable Storage

Yes Up to 4 GB

Network & Connectivity

SIM Slot(s)

Single SIM

Dual SIM

Network Support

5G Not Supported

Wi-Fi

N/A

Bluetooth

Yes

Multimedia

Video Player

Yes Video Formats: 3GP AVI

N/A

Music

Yes Music Formats: Yes Audio Formats : MP3 MIDI WAV AMR

Yes Music Formats: Yes Music Formats : MP3 MIDI AMR WAV Big Speaker for Loud Music with Hot Key 3.5mm Audio Jack

Sensors

Games

Embedded games

Embedded Games

Java

Browser

Yes

Phone Book

1000 entries

Yes 500 Entries+ SIM 1 + SIM2

SMS

500 entries

Yes SMS Storage 200 + SIM1 + SIM2

MMS

N/A	Yes Depend on T-Flash Card Capacity

Other Facilities

Charging time : 3 Hrs Number of lines : 9 lines Back light of keypad : Blue Handset colors : Black Hands-free mode Vibrate mode EMS STK Screen saver Wallpaper Caller ID CLID with Photo Call Conference Caller group Closed User Group Music effects in Call Power Saver One Touch FM keys One Touch Music Player One Touch Camera Predictive text Languages : English Calculator Alarm clock Stop Watch World Times Speed Dialing To Do List Voice recorder Currency converter Health Management Image Format : JPG BMP GIF PC Sync : Optional

EMS STK Power on/off animation Voice codecs : WAV AMR Calculator Alarm clock Stop Watch World Times Speed Dialing