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Micromax X445 vs Micromax X640 Size compare

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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 5.4 oz (154 g)
  
ColorsBlue, GrayBlack, Yellow 
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 
Screen-to-body ratio

Screen-to-body ratio - Shows what part of the frontal area of a phone its screen occupies.

52.31 %44.72 % 
Camera
Camera0.3 megapixels VGA2 megapixels 
Software FeaturesDigital zoom  
CamcorderYesYes 
Hardware
Built-in storage

Built-in storage - Bigger storage capacity allows you to keep more content saved onto your device, such as more applications, photos or video. Games and video content typically take up the biggest amount of storage space.

0.128 GB  
Storage expansion

Storage expansion - Some handsets allow you to expand their storage capacity by using a memory expansion card – most often microSD. Expansion memory is mostly suitable for media storage, such as photo, video or music content.

microSD, microSDHC up to 8 GBmicroSD, microSDHC up to 8 GB 
Battery
Capacity

Capacity - The bigger, the better! However, battery capacity is not the only factor that has an effect on battery life. Those include the chipset in use, the software running on the device, as well as the consumer's unique usage pattern.

1000 mAh1000 mAh 
TypeUser replaceable, Li - IonUser replaceable, Li - Ion 
Talk time4.00 hours
the average is 26 h (1589 min)
4.00 hours
the average is 26 h (1589 min)
 
Stand-by time5.4 days (129 hours)
the average is 20 days (481 h)
8.3 days (200 hours)
the average is 20 days (481 h)
 
specifications continue after the ad
Multimedia
RadioFM, Recording optionFM 
SpeakersLoudspeakerLoudspeaker 
Broadcast Mobile TVYes  
Cellular
GSM900, 1800 MHz900, 1800 MHz 
Multiple SIM cards2 slots2 slots 
Phone features
NotificationsMusic ringtones, Polyphonic ringtones, Silent modeMusic ringtones, Polyphonic ringtones, Vibration 
Other features Voice recording 
Connectivity
Bluetooth3.0Yes 
Wi-Fi Yes 
USBYesYes 

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

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