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Karbonn KT21 Express

Karbonn KT21 Express
3.2 MP
BATTERY: 1000 mAh
Posted: Apr 25, 2012
Market status: Released
Features: Fingerprint Lightweight Thin LTE Rugged NFC Dual SIM


No pros


  • Lacks Wi-Fi
  • The camera lacks autofocus
  • Lacks an ambient light sensor for automatic screen brightness adjustment




The Karbonn KT21 Express is a feature phone. It combines a numeric keypad with a touchscreen. The device offers dual memory card slot, 3.2 MP Camera with Flash, Multi Format Audio & Video Player and Bluetooth.

Do you ...?



  • Device type:
    • Feature phone
  • Form factor:
    • Candybar
  • Features:
    • Numeric keypad
  • Keys:
    • Left: Camera shutter
  • Colors:
    • Brown


  • Physical size:
    • 2.8 inches
  • Touchscreen:
      • Capacitive, Multi-touch
  • Features:
    • Proximity sensor


  • Camera:
      • 3.2 megapixels
    • Flash:
      • Yes
    • Software Features:
      • Digital zoom
  • Camcorder:
      • Yes


  • Storage expansion:
    • microSD, microSDHC up to 32 GB


  • Capacity:
    • 1000 mAh
  • Type:
    • User replaceable, Li - Ion


  • Music player:
    • Supported formats:
      • MP3
  • Radio:
      • FM, Recording option
  • Speakers:
    • Loudspeaker
  • Headphones connector:
    • 3.5mm

Internet browsing

  • Browser:
    • supports:
      • WAP
  • Built-in online services support:
    • Facebook, YouTube (upload)


  • GSM:
    • 900, 1800 MHz
  • 2G Data:
    • EDGE, GPRS
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Phone features

  • Phonebook:
    • 2000 entries
  • Messaging:
    • SMS
  • E-mail:
      • Yes
  • Instant Messaging:
      • Yahoo!
  • JAVA:

    JAVA - J2ME (Java 2 Platform, Micro Edition) is a technology that allows programmers to use the Java programming language and related tools to develop programs for mobile wireless information devices such as cellular phones and personal digital assistants (PDAs). J2ME consists of programming specifications and a special virtual machine, the K Virtual Machine, that allows a J2ME-encoded program to run in the mobile device.

      • Yes


  • Bluetooth:
      • Yes
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Despite our efforts to provide full and correct Karbonn KT21 Express specifications, there is always a possibility of making a mistake. If you see any wrong or incomplete data, please LET US KNOW.

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