Acer Iconia Tab 8 A1-840FHD vs Celkon A20
Acer Iconia Tab 8 A1-840FHD
Celkon A20
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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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Speed Yes-Yes, 384 kbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-62013-8
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Status20142013-8
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Design
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SIMNoDual SIM (Mini-SIM)
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Height
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Width
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Thickness
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Weight360 g
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ColorsSilverBlack
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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 pixels480 x 800 pixels
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Pixel density283 ppi233 ppi
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Display colors16777216-
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Hardware
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CPUQuad-core 1.86 GHzDual-core 1.2 GHz
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ChipsetIntel Atom Z3745-
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Memory ROM-256 MB
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Memory RAM2 GB512 MB
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Internal storage16, 32 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, v4.4.2 (KitKat)Android OS, v4.2.0 (Jelly Bean)
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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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Selfie camera
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Secondary cameraYesVGA camera
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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, Polyphonic, MP3 ringtones
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Multimedia
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RadioNo-
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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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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesYes
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GPS-No
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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 MailPush 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 type-Li-Ion
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Battery capacity-1500 mAh
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Talk time7 h 30 min-
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Standby time--
