BLU Flash vs Karbonn KT21 Express
BLU Flash
Karbonn KT21 Express
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Network
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2G networkGSM 850, 900, 1800, 1900GSM
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3G networkUMTS 850, 2100-
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Speed YesYes, 384 kbps-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2010-92014-12
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Status2010-9
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height109 mm
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Width46 mm
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Thickness13.5 mm
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Weight82 g
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ColorsBlackBlack
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Display
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Display typeTFTTFT capacitive touchscreen
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Physical size2.0 inches2.8 inches
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Resolution240 x 320 pixels-
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Pixel density200 ppi-
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Display colors262144-
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Hardware
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Internal storage70 MB-
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Memory cardmicroSDmicroSD
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Memory card max8 GB32 GB
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Main camera
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Main camera3.15 MP
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Primary camera resolution640 x 480 pixels2048 x 1536 pixels
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Primary camera video320p@15fpsvideo
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraYesNo
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, MP3 ringtonesVibration, Polyphonic(64), MP3 ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Radio recording-FM recording
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Connectivity
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WLAN
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USBYesYes
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Bluetoothv2.0Yes
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Bluetooth A2DPYes-
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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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Messaging IMIM-
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WAPWAP 2.0/xHTML-
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JavaYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity800 mAh1000 mAh
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Talk time--
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Talk time 2G13 h 45 min-
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Talk time 3G4 h 30 min-
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Standby time--
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Standby time 2G600 h-
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Standby time 3G583 h-
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Browser
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Browser-Yes
