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Samsung SGH-D880 DUOS vs Samsung A157

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Samsung SGH-D880 DUOS Remove phone

Posted: 15 Nov 2007
Market Status: Released
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Samsung A157 Remove phone

Posted: 21 Feb 2012
Market Status: Released

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Design
Device type Basic phone 
Dimensions4.09 x 2.04 x 0.74 inches (104 x 51 x 18.9 mm)3.83 x 1.84 x 0.65 inches (97 x 47 x 17 mm) 
Weight3.98 oz (113 g)
the average is 4.8 oz (138 g)
2.99 oz (85 g)
the average is 4.8 oz (138 g)
 
Display
Physical size2.3 inches1.8 inches 
Resolution240 x 320 pixels128 x 160 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.

174 ppi116 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 ratio30.43 %21.69 % 
Colors262 144262 144 
Camera
Camera3 megapixels  
FlashYes  
FeaturesAutofocus, Effects  
CamcorderYes  
Hardware
Processor

Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.

 Single core, 416 MHz 
Built-in storage0.04 GB0.256 GB 
Storage expansionmicroSD  
Battery
Talk time7.00 hours
the average is 11 h (675 min)
5.00 hours
the average is 11 h (675 min)
 
Stand-by time10.0 days (240 hours)
the average is 20 days (477 h)
10.0 days (240 hours)
the average is 20 days (477 h)
 
Capacity1200 mAh800 mAh 
specifications continue after the ad
Multimedia
RadioFM  
Technology
GSM900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS 850, 1900 MHz 
DataEDGEUMTS, EDGE, GPRS 
Multiple SIM cards2 slots  
Connectivity
Bluetooth2.0  
USBUSB 2.0  
OtherTV-Out, Computer sync  
Other features
NotificationsPolyphonic ringtones (64 voices), Vibration, SpeakerphoneFlight mode, Speakerphone 
Hearing aid compatibility M4 
OtherVoice recordingTTY/TDD 

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

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