Acer Iconia Tab 8 A1-840FHD vs Alcatel OT-991
Acer Iconia Tab 8 A1-840FHD
Alcatel OT-991
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 1900, 2100
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HSDPA speed-HSDPA, 7.2 Mbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-62012-2
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Status20142012
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Design
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SIMNoMini-SIM
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Height122 mm
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Width68 mm
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Thickness10.8 mm
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Weight360 g131.3 g
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ColorsSilverBlack, White
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Display
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Display typeIPS LCD capacitive touchscreenTFT capacitive touchscreen
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Physical size8.0 inches4.0 inches
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Resolution1200 x 1920 pixels320 x 480 pixels
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Pixel density283 ppi144 ppi
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Display colors16777216262144
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Hardware
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CPUQuad-core 1.86 GHz800 MHz ARM Cortex-A9
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ChipsetIntel Atom Z3745Mediatek MT6573
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GPU-PowerVR SGX531
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Memory RAM2 GB-
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Internal storage16, 32 GB150 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, v4.4.2 (KitKat)Android OS, v2.3 (Gingerbread)
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Main camera
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Primary cameraYes-
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Main camera3.15 MP
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Primary camera resolution-2048 x 1536 pixels
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Primary camera videovideovideo
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraYesYes
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio with RDS
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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 Hotspot-Yes
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv4.0
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Bluetooth A2DP-Yes
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GPS-Yes, with A-GPS
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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 Mail-
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WAP-WAP 2.0/xHTML
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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 type-Li-Ion
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Battery capacity-1500 mAh
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Talk time7 h 30 min-
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Talk time 2G-12 h
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Talk time 3G-10 h
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Standby time-400 h
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