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i-mobile 638CG

Posted
Sep 4, 2009
Market status
Released

Pros

  • Dual SIM card support

Cons

  • Lacks Wi-Fi
  • Slow data means slow Internet browsing (EDGE)
  • Low pixel density screen (167 ppi)
  • Low resolution display (240 x 320 pixels)
  • The camera lacks autofocus
  • The camera lacks flash
  • Lacks an e-mail client
  • Lacks a standard (3.5mm) headphones jack
  • Lacks an ambient light sensor for automatic screen brightness adjustment

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Description

The i-mobile 638CG features 2 SIM Card slots, Analog TV, 3 MP Camera, multimedia players ,FM Radio, Bluetooth and microSD slot.

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Design

  • Device type:
    • Feature phone
  • Dimensions:
    • 4.45 x 2.01 x 0.57 inches (113 x 51 x 14.5 mm)

Display

  • Physical size:
    • 2.4 inches
  • Resolution:
    • 240 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.

    • TFT
  • Colors:
    • 262 144

Camera

  • Camera:
      • 3 megapixels
  • Camcorder:
      • Yes

Hardware

  • Storage expansion:
    • microSD

Battery

  • Talk time:
    • 8.30 hours
      the average is 12 h (746 min)
  • Stand-by time:
    • 16.7 days (400 hours)
      the average is 21 days (502 h)
  • Capacity:
    • 1050 mAh

Multimedia

  • Radio:
      • FM
  • Broadcast Mobile TV:
      • Analog TV

Technology

  • CDMA:

    CDMA - Code Division Multiple Access. A technique of multiplexing, also called spread spectrum, in which analog signals are converted into digital form for transmission. For each communication channel, the signals are encoded in a sequence known to the transmitter and the receiver for that channel. The foremost application is digital cellular phone technology from QUALCOMM that operates in the 800MHz band and 1.9GHz PCS band. CDMA phones are noted for their excellent call quality and long battery life.

    • 800 MHz
  • GSM:
    • 900, 1800, 1900 MHz
  • Data:
    • EDGE
  • Multiple SIM cards:
      • 2 slots

Connectivity

  • Bluetooth:
      • Yes
  • USB:
      • Yes
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Other features

  • Notifications:
    • Music ringtones (MP3), Polyphonic ringtones, Vibration

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


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