Karbonn KT21 Express vs Samsung C3730C
Karbonn KT21 Express
Samsung C3730C
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Network
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2G networkGSMGSM 900, 1800, 1900
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3G network-TD-SCDMA/ TD-HSPA 1880-1920, 2010-2025
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HSDPA speed-HSDPA
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HSUPA speed-HSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122012
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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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Height104 mm
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Width49.5 mm
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Thickness14.9 mm
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Weight99.5 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size2.8 inches2.2 inches
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Resolution-240 x 320 pixels
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Pixel density-182 ppi
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Display colors-16777216
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Hardware
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Internal storage-80 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 MP1.3 MP
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Primary camera resolution2048 x 1536 pixels1280 x 1024 pixels
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Primary camera videovideoQCIF@15fps
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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 jackYes-
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic(64), MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMFM radioStereo FM radio with RDS
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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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BluetoothYesYes
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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 EmailEmailEmail
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WAP-WAP 2.0/xHTML
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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 mAh960 mAh
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Talk time--
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Standby time--
