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Zen Mobile U4

Zen Mobile U4
3.2 MP
0.3 MP VGA front
RAM: 0.25 GB
BATTERY: 1500 mAh
MEMORY: 0.512 GB + MicroSD
Posted: Jul 10, 2013
Market status: Released
Features: Fingerprint Lightweight Thin LTE Rugged NFC Dual SIM


  • Dual SIM card support


  • Single-core processor
  • Too little RAM memory (0.25 GB RAM)
  • Low-resolution camera (3.2 megapixels)
  • The camera lacks autofocus




The Zen U4 is a dual-SIM smartphone running Android 2.3, and comes with specs like 4.3" display, 1 GHz processor, 256 MB RAM, microSD card slot and two cameras - 3.2 MP main one, and 0.3 MP front shooter.

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  • Device type:
    • Smart phone
  • OS:
    • Android (2.3)
  • Colors:
    • Black


  • Physical size:
    • 4.3 inches
  • Features:
    • Light sensor, Proximity sensor


  • Camera:
      • 3.2 megapixels
    • Flash:
      • LED
    • Software Features:
      • Digital zoom
  • Camcorder:
      • Yes
  • Front-facing camera:
      • 0.3 megapixels VGA


  • 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.

    • Single core, 1000 MHz
  • Graphics processor:
      • Yes
  • 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.

    • 0.25 GB RAM
  • Built-in storage:
    • 0.512 GB
  • Storage expansion:
    • microSD, microSDHC up to 32 GB


  • Capacity:
    • 1500 mAh
  • Type:
    • User replaceable, Li - Ion
  • Talk time:
    • 6.00 hours
      the average is 15 h (880 min)
  • Stand-by time:
    • 7.0 days (168 hours)
      the average is 16 days (375 h)


  • Music player:
    • Filter by:
      • Album, Artist, Playlists
    • Features:
      • Album art cover, Background playback
  • Radio:
      • FM
  • Speakers:
    • Earpiece, Loudspeaker


  • GSM:
    • 900, 1800 MHz
  • Multiple SIM cards:
    • 2 slots

Phone features

  • Sensors:
      • Accelerometer, Compass
  • Notifications:
    • Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
  • Other features:
    • Voice dialing, Voice commands, Voice recording
specifications continue after the ad


  • Bluetooth:
      • Yes
  • Wi-Fi:
      • 802.11 b, g
  • USB:
      • USB 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.

    • GPS, A-GPS
  • Navigation:
    • Yes
  • Other:
    • Tethering, Computer sync, OTA sync

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

Despite our efforts to provide full and correct Zen Mobile U4 specifications, there is always a possibility of making a mistake. If you see any wrong or incomplete data, please LET US KNOW.

If you are interested in using our specs commercially, check out our Phone specs database licensing page.


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