x PhoneArena is looking for new authors! To view all available positions, click here.

Micromax X445 vs Karbonn K 455

phone

Micromax X445 Remove phone

Posted: 23 Aug 2012
Market Status: Released
phone

Karbonn K 455 Remove phone

Posted: 04 Sep 2011
Market Status: Released

Add phone to compare

Design
Device typeFeature phoneFeature phone 
Dimensions4.33 x 2.17 x 0.56 inches (110 x 55.2 x 14.1 mm)3.74 x 1.85 x 0.57 inches (95 x 47 x 14.5 mm) 
Weight3.60 oz (102 g)
the average is 4.9 oz (139 g)
2.96 oz (84 g)
the average is 4.9 oz (139 g)
 
Display
Physical size3.2 inches2.0 inches 
Resolution240 x 320 pixels176 x 220 pixels 
Pixel density

Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.

125 ppi141 ppi 
Technology

Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.

TFTLCD 
Screen-to-body ratio52.31 %28.20 % 
TouchscreenYes  
Camera
Camera0.3 megapixels VGAYes 
FeaturesDigital zoom  
CamcorderYes  
Hardware
Built-in storage0.128 GB0.00025 GB 
Storage expansionmicroSD, microSDHC up to 8 GBmicroSD 
Battery
Talk time4.00 hours
the average is 12 h (697 min)
3.00 hours
the average is 12 h (697 min)
 
Stand-by time5.4 days (129 hours)
the average is 20 days (483 h)
7.5 days (180 hours)
the average is 20 days (483 h)
 
Capacity1000 mAh700 mAh 
specifications continue after the ad
Multimedia
RadioFM, Recording optionFM, Recording option 
SpeakersLoudspeakerEarpiece 
Broadcast Mobile TVYes  
Technology
GSM900, 1800 MHz900, 1800 MHz 
DataGPRS  
Multiple SIM cards2 slots2 slots 
Connectivity
Bluetooth3.0Yes 
USBYesYes 
Other features
NotificationsMusic ringtones, Polyphonic ringtones, Silent modeMusic ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Speakerphone 

To see the full specifications with in-depth details click here.

Latest stories