Samsung X640 vs Karbonn K451M

Comparing the Samsung X640 vs Karbonn K451M across camera to help determine the better smartphone.

Here is the summary of the results:

Rear Camera: Both Samsung X640 and Karbonn K451M feature a 0.3 MP primary rear camera.

Samsung X640

(Discontinued)

Karbonn K451M

(Discontinued)

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Summary

Release Date

01 Jan, 2005

17 Dec, 2009

Display

N/A	2 inches (5.08 cm)
160.00x 160 pixels , 8 lines px	176x220 px

Rear Camera

0.3 MP

Primary Camera

0.1 MP

Primary Camera

Battery

N/A

1100 mAh

User Feedback

Display

Screen Size

N/A	2 inches (5.08 cm)

Resolution

160.00x 160 pixels 8 lines px

176x220 px

Pixel Density

N/A

141 ppi

Screen to Body Ratio (calculated)

N/A

27.43 %

Design

Height

87.40 mm

102 mm

Width

47.00 mm

45 mm

Thickness

23.00 mm

14.50 mm

Weight

85 grams

80 grams

Form Factor

Clamshell

N/A

Rear Camera

Resolution

0.3 MP
Primary Camera

0.1 MP
Primary Camera

Flash

N/A

Yes

Camera Features

Digital Zoom

Battery

Capacity

N/A

1100 mAh

Battery Type

N/A

Li-ion

TalkTime

Up to 3.5(2G)

Up to 4(2G)

Storage

Expandable Storage

Yes	Yes Up to 4 GB

Network & Connectivity

SIM Slot(s)

Single SIM

Dual SIM

Network Support

5G Not Supported

Wi-Fi

Bluetooth

Yes

Multimedia

Video Player

N/A	Yes Video Formats: 3GP AVI

Music

Yes Music Formats: No

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

Sensors

Games

N/A	Embedded games

Java

Yes MIDP 2.0 CLDC 1.1

Browser

Yes

Phone Book

1000 entries Photo call

Yes 1000 Entries

SMS

N/A	Yes SMS Storage 500

Other Facilities

T9 Organizer

Charging time 3 Hrs Back light of keypad : Blue 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)