Acer Iconia B1-721 vs Karbonn K309 Boombastic
Acer Iconia B1-721
Karbonn K309 Boombastic
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA-
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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-12014-12
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Status2014-1
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Design
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SIMYesDual SIM (Mini-SIM)
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Height199 mm113 mm
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Width122.3 mm49 mm
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Thickness11.4 mm15.2 mm
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Weight323 g85 g
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ColorsBlack/RedBlack/Red
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size7.0 inches-
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Resolution600 x 1024 pixels176 x 220 pixels
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Pixel density170 ppi-
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Display colors-66560
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Hardware
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CPUDual-core 1.3 GHz
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ChipsetMediatek MT8312-
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GPUMali-400-
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Internal storage16 GB-
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Memory RAM1 GB-
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Memory cardmicroSDmicroSD
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Memory card max32 GB8 GB
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OS
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OSAndroid OS, v4.2 (Jelly Bean)-
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Main camera
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Primary camera resolution640 x 480 pixels640 x 480 pixels
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Primary camera videovideono
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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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NotificationsN/AVibration, Polyphonic, MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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USBmicroUSB 2.0Yes
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BluetoothYesYes
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GPSYesNo
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Features
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Messaging SMS-SMS
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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JavaYes, via Java MIDP emulatorYes
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Browser
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HTMLHTML5-
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Browser-Yes
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2955 mAh1500 mAh
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Talk time-5 h
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Standby time-400 h
