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ZTE Z431 vs Alcatel 871A Size compare

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ZTE Z431 Remove phone

Posted: 20 Feb 2013
Market Status: Released
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Alcatel 871A Remove phone

Posted: 20 May 2013
Market Status: Released

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Design
Device typeFeature phoneBasic phone 
Dimensions4.49 x 2.4 x 0.41 inches (114 x 61 x 10 mm)4.19 x 2.28 x 0.5 inches (106 x 58 x 13 mm) 
Weight3.34 oz (95 g)
the average is 5.3 oz (150 g)
3.16 oz (90 g)
the average is 5.3 oz (150 g)
 
FeaturesFull keyboard, Soft keys, D-PadFull keyboard, Soft keys, D-Pad 
ColorsBlackGray 
Display
Physical size2.4 inches2.0 inches 
Resolution320 x 240 pixels160 x 128 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 ppi102 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.

TFTLCD 
Screen-to-body ratio25.66 %20.42 % 
Camera
Camera2 megapixels2 megapixels 
Software FeaturesDigital zoom  
Hardware
Built-in storage0.058 GB0.050 GB 
Storage expansionmicroSD, microSDHC up to 32 GBmicroSD 
Battery
Capacity1000 mAh580 mAh 
User replaceableYesYes 
Talk time4.50 hours
the average is 14 h (826 min)
4.40 hours
the average is 14 h (826 min)
 
Stand-by time12.5 days (216 hours)
the average is 16 days (388 h)
17.8 days (427 hours)
the average is 16 days (388 h)
 
specifications continue after the ad
Multimedia
Radio FM 
SpeakersEarpiece  
Cellular
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS850, 1900, 2100 MHz850, 1900 MHz 
DataUMTSUMTS 
Connectivity
Bluetooth2.1, EDR2.0 
USBYesYes 
Positioning

Positioning - This field shows the positioning systems supported by the device. There are three main types: GPS, A-GPS and GLONASS. GPS - This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather. A-GPS - A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization. GLONASS - GLONASS is a global positioning system, developed by the Russian Federation. It’s very similar to GPS, but isn’t so popular in cell phones.

GPSA-GPS, E911 
NavigationYes  
Other features
NotificationsMusic ringtones, SpeakerphonePolyphonic ringtones, Speakerphone 
Hearing aid compatibilityM3, T3M3, T3 
OtherVoice dialing, Voice commands  
Regulatory Approval
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).

   
Head1.04 W/kg1.33 W/kg 
Body1.37 W/kg1.19 W/kg 

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

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