Karbonn KT21 Express vs i-mobile 8500
Karbonn KT21 Express
i-mobile 8500
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Network
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2G networkGSMGSM 850, 900, 1800, 1900
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3G network-HSDPA 2100
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HSDPA speed-HSDPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122014-12
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Status2014-12
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height112 mm
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Width56.5 mm
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Thickness14.9 mm
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Weight
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ColorsBlackSilver
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size2.8 inches3.2 inches
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Resolution-320 x 480 pixels
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Pixel density-180 ppi
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Display colors-262144
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Hardware
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Memory ROM-256 MB
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Memory RAM-128 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 MP5 MP
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Primary camera resolution2048 x 1536 pixels2592 x 1944 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 radioStereo FM radio
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Radio recordingFM recording-
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USBYesYes
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BluetoothYesv2.0
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Bluetooth A2DP-Yes
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GPSNoYes, with A-GPS
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Features
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Messaging SMSSMSSMS
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Messaging EMS-EMS
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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WAP-WAP 2.0/xHTML
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JavaYesYes, via Java MIDP emulator
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Browser
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BrowserYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1000 mAh1500 mAh
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Talk time-8 h
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Standby time-250 h
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OS
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OS-Android OS
