Acer Iconia Tab A3-A20 vs Allview V2 Viper S
Acer Iconia Tab A3-A20
Allview V2 Viper S
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 7(2600), 20(800), 38(2600)
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-102016-10
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Status2014-102016-10
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Design
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SIMNoDual SIM (Micro-SIM, dual stand-by)
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Height256.5 mm146 mm
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Width170.2 mm74.5 mm
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Thickness10.2 mm8.2 mm
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Weight508 g141.6 g
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ColorsBlack, WhiteGold, Gray
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Display
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Display typeLED-backlit IPS LCD capacitive touchscreenLTPS IPS LCD capacitive touchscreen
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Physical size10.1 inches5.5 inches
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Resolution1280 x 800 pixels1080 x 1920 pixels
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Pixel density149 ppi401 ppi
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Display colors1677721616777216
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Protection-Scratch-resistant glass
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Multitouch-Yes
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A7Octa-core 1.3 GHz ARM Cortex-A53
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ChipsetMediatek MT8127Mediatek MT6753
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GPUMali-450MP4Mali-T720
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Memory RAM1 GB3 GB
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Internal storage16 GB32 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB256 GB
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OS
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OSAndroid OS, v4.4 (KitKat)Android OS, v6.0 (Marshmallow)
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Main camera
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Main camera5 MP16 MP, f/2.0
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Primary camera resolution2592 x 1944 pixels-
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Primary camera video1080p1080p@30fps
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Primary camera Autofocus-phase detection autofocus
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Primary camera flash-LED flash
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Camera featuresGeo-taggingGeo-tagging, HDR, face/smile detection, touch focus
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Selfie camera
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Selfie camera2 MP5 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; MP3, WAV 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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Bluetoothv4.0v4.0
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Bluetooth A2DP-Yes
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Bluetooth EDR-Yes
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Infrared-Yes
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GPSYes, with A-GPSYes, 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 EmailPush Email
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JavaNoNo
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SensorsAccelerometerAccelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity5910 mAh3000 mAh
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Battery removableNon-removableRemovable
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Talk time9 h-
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Talk time 3G-14 h
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Standby time 3G-210 h
