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AT&T Z221


AT&T Z221 Remove phone

Posted: 28 Sep 2011
Market Status: Released

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Device typeBasic phone  
Dimensions3.76 x 1.92 x 0.73 inches (96 x 49 x 19 mm)  
Weight3.24 oz (92 g)
the average is 5.3 oz (150 g)
Physical size2.0 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.

200 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 ratio26.60 %  
Colors65 536  
Camera0.3 megapixels VGA  
System memory

System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.

64 MB RAM / 128 MB ROM  
Talk time3.00 hours
the average is 15 h (887 min)
Stand-by time8.3 days (200 hours)
the average is 18 days (424 h)
Capacity900 mAh  
specifications continue after the ad
GSM850, 900, 1800, 1900 MHz  
UMTS850, 1900 MHz  
DataHSDPA 3.6 Mbit/s, UMTS, EDGE  
Other features
NotificationsPolyphonic ringtones, Vibration, Silent mode, Speakerphone  
Hearing aid compatibilityM3, T3  
OtherVoice recording, TTY/TDD  

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

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