Karbonn KT21 Express vs ZTE N280
Karbonn KT21 Express
ZTE N280
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Network
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2G networkGSMGSM 900, 1800
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GPRSYesYes
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EDGEYes
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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)Dual SIM (Mini-SIM)
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Height113 mm
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Width56 mm
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Thickness14 mm
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Weight130 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenTFT resistive 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-32 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB-
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Main camera
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Main camera3.15 MP
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Primary camera resolution2048 x 1536 pixels640 x 480 pixels
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Primary camera videovideo176x144
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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 jackYesNo
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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-No
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Radio FMFM radio-
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Radio recordingFM recording-
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Connectivity
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WLAN
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USBYesYes
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BluetoothYesv2.0
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Bluetooth A2DP-Yes
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging MMSMMS-
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Messaging EmailEmail-
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WAP-WAP 2.0
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JavaYesYes
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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 mAh-
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Talk time-5 h
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Standby time-360 h
