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AT&T Z331


AT&T Z331 Remove phone

Posted: 14 Oct 2011
Market Status: Released

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Device typeFeature phone  
Dimensions3.86 x 2.03 x 0.67 inches (98 x 52 x 17 mm)  
Weight3.17 oz (90 g)
the average is 5.1 oz (146 g)
Physical size2.4 inches  
Resolution240 x 320 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.

167 ppi  

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.

Screen-to-body ratio35.28 %  
Colors262 144  
Additional display

Additional display - Shows specs of the phone's additional display


Resolution - Refers to the width and the length od the additional display

128 x 128 pixels  
Physical Size1.46 inches  
Camera3 megapixels  
CamcorderResolution, 176 x 144 pixels  
Built-in storage0.14 GB  
Storage expansionmicroSD, microSDHC up to 8 GB  
Talk time3.00 hours
the average is 13 h (796 min)
Stand-by time8.3 days (200 hours)
the average is 17 days (419 h)
Capacity950 mAh  
specifications continue after the ad
Internet browsing
BrowserOpera Mini  
GSM850, 900, 1800, 1900 MHz  
UMTS850, 1900, 2100 MHz  
DataEDGE, UMTS, HSDPA 3.6 Mbit/s  
USBUSB 1.1  
Other features
NotificationsVibration, Silent mode, Speakerphone  
Hearing aid compatibilityM3, T4  

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

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