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Micromax X445 vs Micromax X640

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Micromax X445 Remove phone

Posted: 23 Aug 2012
Market Status: Released
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Micromax X640 Remove phone

Posted: 23 Aug 2012
Market Status: Released

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Design
Device typeFeature phoneFeature phone 
Dimensions4.33 x 2.17 x 0.56 inches (110 x 55.2 x 14.1 mm)4.47 x 2.26 x 0.48 inches (113.5 x 57.5 x 12.2 mm) 
Weight3.60 oz (102 g)
the average is 4.8 oz (138 g)
  
Display
Physical size3.2 inches3.2 inches 
Resolution240 x 320 pixels240 x 400 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 ppi146 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.

TFTTFT 
TouchscreenYesYes 
Camera
Camera0.3 megapixels VGA2 megapixels 
FeaturesDigital zoom  
CamcorderYesYes 
Hardware
Built-in storage0.128 GB  
Storage expansionmicroSD, microSDHC up to 8 GBmicroSD, microSDHC up to 8 GB 
Battery
Talk time4.00 hours
the average is 12 h (713 min)
4.00 hours
the average is 12 h (713 min)
 
Stand-by time5.4 days (129 hours)
the average is 20 days (489 h)
8.3 days (200 hours)
the average is 20 days (489 h)
 
Capacity1000 mAh1000 mAh 
specifications continue after the ad
Multimedia
RadioFM, Recording optionFM 
SpeakersLoudspeakerLoudspeaker 
Broadcast Mobile TVYes  
Technology
GSM900, 1800 MHz900, 1800 MHz 
DataGPRSGPRS 
Multiple SIM cards2 slots2 slots 
Connectivity
Bluetooth3.0Yes 
Wi-Fi Yes 
USBYesYes 
Other features
NotificationsMusic ringtones, Polyphonic ringtones, Silent modeMusic ringtones, Polyphonic ringtones, Vibration 
Other Voice recording 

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

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