Acer Iconia Tab A3-A20 vs Celkon Q455
Acer Iconia Tab A3-A20
Celkon Q455
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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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Oficially announced2014-102014-12
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Status2014-102014-12
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Design
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SIMNoDual SIM (Mini-SIM)
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Height256.5 mm136.5 mm
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Width170.2 mm68 mm
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Thickness10.2 mm7.9 mm
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Weight508 g83.7 g
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ColorsBlack, WhiteBlack, Blue, White
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Display
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Display typeLED-backlit IPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size10.1 inches4.5 inches
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Resolution1280 x 800 pixels540 x 960 pixels
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Pixel density149 ppi245 ppi
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Display colors16777216-
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A7Quad-core 1.2 GHz
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ChipsetMediatek MT8127-
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GPUMali-450MP4-
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Memory RAM1 GB1 GB
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Internal storage16 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB64 GB
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OS
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OSAndroid OS, v4.4 (KitKat)Android OS, v4.4.2 (KitKat)
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Main camera
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Main camera5 MP8 MP
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Primary camera resolution2592 x 1944 pixels3264 x 2448 pixels
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Primary camera video1080pvideo
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Camera featuresGeo-tagging-
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Selfie camera
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Selfie camera2 MP1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYes, with stereo speakersYes
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NotificationsMP3, WAV ringtonesVibration, 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, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0Yes
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GPSYes, with A-GPSYes
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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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JavaNoYes, via Java MIDP emulator
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SensorsAccelerometer-
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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 capacity5910 mAh2000 mAh
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Battery removableNon-removable-
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Talk time9 h-
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Talk time 3G-6 h
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Standby time--
