Karbonn KT21 Express vs Samsung C3312 Duos
Karbonn KT21 Express
Samsung C3312 Duos
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Network
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2G networkGSMGSM 850, 900, 1800, 1900
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122012-1
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Status2012-1
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM, dual stand-by)
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Height102 mm
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Width55 mm
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Thickness12 mm
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Weight100 g
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ColorsBlackPlatinum Silver, White
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Display
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Display typeTFT capacitive touchscreenTFT touchscreen
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Physical size2.8 inches2.8 inches
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Resolution-240 x 320 pixels
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Pixel density-143 ppi
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Display colors-262144
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Hardware
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Internal storage-30 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB16 GB
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Main camera
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Main camera3.15 MP1.3 MP
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Primary camera resolution2048 x 1536 pixels1280 x 1024 pixels
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Primary camera videovideovideo
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Primary camera flashLED flash-
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Selfie camera
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Secondary cameraNoNo
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic(64), MP3 ringtonesVibration; MP3 ringtones
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Multimedia
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Radio FMFM radioFM radio
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Radio recordingFM recordingFM recording
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Connectivity
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WLAN
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USBYesmicroUSB 2.0
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BluetoothYesv3.0
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Bluetooth A2DP-Yes
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Bluetooth EDR-Yes
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GPSNoNo
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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WAP-WAP 2.0/xHTML
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JavaYesYes
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Java MIDP-MIDP 2.0
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Browser
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HTML-Yes
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BrowserYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh1000 mAh
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Talk time-14 h
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Standby time-600 h
