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Samsung SGH-T139 vs AT&T Z331 Size compare

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Samsung SGH-T139 Remove phone

Posted: 29 Jan 2010
Market Status: Released
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AT&T Z331 Remove phone

Posted: 14 Oct 2011
Market Status: Released

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Design
Device typeBasic phoneFeature phone 
Dimensions3.74 x 1.89 x 0.72 inches (95 x 48 x 18 mm)3.86 x 2.03 x 0.67 inches (98 x 52 x 17 mm) 
Weight2.98 oz (84 g)
the average is 5.3 oz (151 g)
3.17 oz (90 g)
the average is 5.3 oz (151 g)
 
FeaturesNumeric keypad, D-Pad, Soft keysNumeric keypad, D-Pad, Soft keys 
Display
Physical size 2.4 inches 
Resolution128 x 160 pixels240 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

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 35.28 % 
Additional display

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

YesOLED 
Resolution

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

96 x 96 pixels128 x 128 pixels 
Physical Size1.00 inches1.46 inches 
Camera
Camera0.3 megapixels VGA3 megapixels 
Software FeaturesDigital zoom  
Camcorder Resolution, 176 x 144 pixels 
Hardware
Built-in storage0.01 GB0.14 GB 
Storage expansion microSD, microSDHC up to 8 GB 
Battery
Capacity800 mAh950 mAh 
TypeUser replaceable, Li - IonUser replaceable, Li - Ion 
Talk time7.00 hours
the average is 14 h (857 min)
3.00 hours
the average is 14 h (857 min)
 
Stand-by time12.5 days (300 hours)
the average is 15 days (370 h)
8.3 days (200 hours)
the average is 15 days (370 h)
 
specifications continue after the ad
Multimedia
Radio FM 
Cellular
GSM850, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS 850, 1900, 2100 MHz 
Data UMTS, HSDPA 3.6 Mbit/s 
Phone features
NotificationsPolyphonic ringtones (40 voices), Vibration, SpeakerphoneVibration, Silent mode, Speakerphone 
Hearing aid compatibilityM4, T4M3, T4 
Other featuresVoice recordingTTY/TDD 
Connectivity
Bluetooth2.0, EDR2.0 
USB USB 1.1 
OtherComputer sync, OTA sync, SyncML  
Regulatory Approval
FCC approval

FCC approval - The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that is sold in the U.S. has to be tested and approved for sale by the FCC.

   
Date approved

Date approved - Shows the date when the particular phone is approved by the Federal Communications Commission

29 Dec 2009  
FCC ID value: A3LSGHT139 link  
FCC measured SAR

FCC measured SAR - Working closely with federal health and safety agencies, such as the Food and Drug Administration (FDA), the FCC has adopted limits for safe exposure to radiofrequency (RF) energy. These limits are given in terms of a unit referred to as the Specific Absorption Rate (SAR), which is a measure of the amount of radio frequency energy absorbed by the body when using a mobile phone. The FCC requires cell phone manufacturers to ensure that their phones comply with these objective limits for safe exposure. Any cell phone at or below these SAR levels (that is, any phone legally sold in the U.S.) is a "safe" phone, as measured by these standards. The FCC limit for public exposure from cellular telephones is an SAR level of 1.6 watts per kilogram (1.6 W/kg).

   
Head0.43 W/kg  
Measured in1900 MHz  
Body0.80 W/kg  
Measured in1900 MHz  

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

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