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ZTE Z431 vs HTC First Size compare

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ZTE Z431 Remove phone

Posted: 20 Feb 2013
Market Status: Released
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HTC First Remove phone

Posted: 04 Apr 2013
Market Status: Released US carrier availability: Available - AT&T

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Design
Device typeFeature phoneSmart phone 
OS Android (4.1) 
Dimensions4.49 x 2.4 x 0.41 inches (114 x 61 x 10 mm)4.96 x 2.56 x 0.35 inches (126 x 65 x 9 mm) 
Weight3.34 oz (95 g)
the average is 5.2 oz (150 g)
4.37 oz (124 g)
the average is 5.2 oz (150 g)
 
FeaturesFull keyboard, Soft keys, D-Pad  
ColorsBlackBlack, Blue, Red, White 
Display
Physical size2.4 inches4.3 inches 
Resolution320 x 240 pixels720 x 1280 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 ppi341 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.

TFTS-LCD 3 
Screen-to-body ratio25.66 %62.51 % 
Features Light sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass) 
Camera
Camera2 megapixels5 megapixels 
Flash LED 
Aperture size

Aperture size - The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass.

 F2.0 
Focal length (35mm equivalent) 28 mm 
Hardware Features Autofocus, Back-illuminated sensor (BSI) 
Software FeaturesDigital zoom  
Camcorder 1920x1080 (1080p HD) 
Front-facing camera 1.6 megapixels 
Hardware
System chip

System chip - Most modern handsets use an advanced chip that includes many of the device’s hardware modules like the processor, Wi-Fi, Bluetooth and sometimes even the wireless radio. This field shows what particular system chip (or System-on-a-Chip) is used in the phone.

 Qualcomm Snapdragon 400 
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.

 Dual-core, 1400 MHz, Krait 
Graphics processor Adreno 305 
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.

 1 GB RAM 
Built-in storage0.058 GB16 GB 
Storage expansionmicroSD, microSDHC up to 32 GB  
Battery
Capacity1000 mAh2000 mAh 
TypeUser replaceableUser replaceable, Li - Polymer 
Talk time4.50 hours
the average is 15 h (886 min)
14.30 hours
the average is 15 h (886 min)
 
Stand-by time12.5 days (216 hours)
the average is 16 days (377 h)
18.2 days (437 hours)
the average is 16 days (377 h)
 
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Multimedia
Music player   
Filter by Album, Artist, Playlists 
Features Album art cover, Background playback 
SpeakersEarpieceEarpiece, Loudspeaker 
Additional microphone(s) for Noise cancellation 
Cellular
GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz 
UMTS850, 1900, 2100 MHz850, 900, 1900, 2100 MHz 
LTE (FDD) Bands 17, 5, 4, 2 
DataUMTSLTE, HSPA, UMTS 
Micro SIM Yes 
Phone features
Sensors Accelerometer, Gyroscope, Compass 
NotificationsMusic ringtones, SpeakerphoneHaptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone 
Hearing aid compatibilityM3, T3M3, T3 
Other featuresVoice dialing, Voice commandsVoice dialing, Voice commands, Voice recording 
Connectivity
Bluetooth2.1, EDR4.0 
Wi-Fi 802.11 a, b, g, n 
Mobile hotspot Yes 
USBYesUSB 2.0 
Connector microUSB 
Features Mass storage device, USB charging 
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.

GPSGPS, A-GPS, Glonass 
NavigationYesTurn-by-turn navigation 
Other NFC, Tethering, Computer sync, OTA sync 
Availability
Officially announced 04 Apr 2013 
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/kg  
Body1.37 W/kg  

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

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