Acer Iconia Tab A1-811 vs Celkon A66
Acer Iconia Tab A1-811
Celkon A66
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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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EDGEYesYes
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Availability
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Oficially announced20132014-12
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Status2013
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Design
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SIMYesDual SIM
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Height208.7 mm136 mm
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Width145.7 mm67.2 mm
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Thickness11.1 mm11 mm
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Weight430 g98 g
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ColorsWhiteBlack, White
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size7.9 inches4.5 inches
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Resolution768 x 1024 pixels480 x 854 pixels
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Pixel density162 ppi218 ppi
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Display colors16777216-
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Hardware
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CPUQuad-core 1.2 GHzDual-core 1.2 GHz
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ChipsetMediatek MT8389W-
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Memory RAM1 GB512 MB
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Internal storage8 GB4 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, v4.1.2 (Jelly Bean)
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Main camera
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Main camera5 MP3.15 MP
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Primary camera resolution2592 x 1944 pixels2048 x 1536 pixels
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Primary camera videovideovideo
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Primary camera Autofocusautofocus-
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraVGA cameraVGA camera
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 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 2.0Yes
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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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 emulatorNo
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity4960 mAh2000 mAh
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Battery removableNon-removable-
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Talk time7 h5 h
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Standby time-160 h
