Karbonn KT21 Express vs NIU GO 21
Karbonn KT21 Express
NIU GO 21
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Network
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2G networkGSMGSM 850, 900, 1800, 1900
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-122014-5
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Status2014-6
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Design
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SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
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Height105 mm
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Width44.9 mm
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Thickness14.2 mm
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Weight66 g
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ColorsBlackBlack, Blue, Gray, Green, Orange, Red
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size2.8 inches1.8 inches
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Resolution-128 x 160 pixels
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Pixel density-114 ppi
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Display colors-66560
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Hardware
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Internal storage-64 Mbit
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 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 videovideono
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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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WLAN
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USBYesmicroUSB 2.0
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BluetoothYesv2.1
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Bluetooth EDR-Yes
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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Messaging IM-IM
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WAP-Yes
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JavaYesNo
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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 mAh650 mAh
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Talk time-6 h
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Standby time-200 h
