Acer Iconia B1-721 vs Celkon A83
Acer Iconia B1-721
Celkon A83
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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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 announced2014-12012-12
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Status2014-12012-12
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Design
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SIMYesDual SIM (Mini-SIM)
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Height199 mm113.9 mm
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Width122.3 mm63.4 mm
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Thickness11.4 mm14.4 mm
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Weight323 g103 g
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ColorsBlack/RedBlack, White
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size7.0 inches3.2 inches
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Resolution600 x 1024 pixels320 x 420 pixels
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Pixel density170 ppi165 ppi
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Hardware
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CPUDual-core 1.3 GHz1 GHz
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ChipsetMediatek MT8312-
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GPUMali-400-
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Memory RAM1 GB-
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Internal storage16 GB-
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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, v4.2 (Jelly Bean)Android OS, v2.3 (Gingerbread)
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Main camera
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Main camera2 MP
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Primary camera resolution640 x 480 pixels1600 x 1200 pixels
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Primary camera videovideovideo
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Selfie camera
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Secondary cameraNoYes
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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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RadioNo-
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Radio FM-Stereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesYes
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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 IMIMIM
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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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HTMLHTML5Yes
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2955 mAh1450 mAh
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Talk time-5 h
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Standby time-150 h
