BLU Touch Book 7.0 Lite vs Celkon A21
BLU Touch Book 7.0 Lite
Celkon A21
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Network
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2G networkGSM 900, 1800
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3G network-HSDPA 2100
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HSDPA speed-HSDPA
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GPRSYes
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EDGEYes
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Availability
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Status2012-112014-12
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Oficially announced2012-92014-12
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Design
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SIMNoDual SIM (dual stand-by)
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Height194 mm124.8 mm
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Width120 mm66.1 mm
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Thickness10 mm10.8 mm
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Weight340 g115.3 g
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ColorsBlack, WhiteBlack, Blue, Red
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Display
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Display typeTFT capacitive touchscreenCapacitive touchscreen
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Physical size7.0 inches4.0 inches
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Resolution480 x 800 pixels320 x 480 pixels
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Pixel density133 ppi144 ppi
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Display colors16777216-
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Hardware
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CPU1.2 GHz ARM Cortex-A81.2 GHz Dual-core
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Chipset-Mediatek MT6582
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GPUMali-400-
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Memory ROM4 GB512 MB
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Memory RAM512 MB256 MB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.0 (Ice Cream Sandwich)Android OS, v4.2.2 (Jelly Bean)
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Main camera
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Main camera3.15 MP
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Primary camera resolution640 x 480 pixels-
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Primary camera videovideovideo
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Selfie camera
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Secondary cameraNo-
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Selfie camera1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsN/AVibration, Polyphonic, MP3 ringtones
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Multimedia
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Radio FMStereo FM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi Dual BandYes-
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USBYesYes
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Bluetoothv4.0
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GPSYesNo
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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Messaging Push EmailPush Email-
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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Adobe FlashYes-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3000 mAh1500 mAh
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Battery removableNon-removable-
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Talk time--
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Talk time 3G-8 h
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Standby time200 h-
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Standby time 3G-120 h
