Allview V4 Viper vs Blackview Tab 11
Allview V4 Viper
Blackview Tab 11
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800
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3G networkW-CDMA 900, 2100HSDPA 900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800), 38(2600)LTE frequency band 1, 3, 7, 8, 20
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HSDPA speed42.2 Mbps-
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HSUPA speed11.5 Mbps-
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LTE speedLTE Cat 4, 150 Mbps download, 50 Mbps upload-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-92021-11
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Status2019-92021-11
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Design
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Build-Aluminium alloy
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SIMDual SIM (Nano-SIM, dual SIM stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height145.8 mm156.7 mm
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Width70.9 mm247 mm
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Thickness8.5 mm8.1 mm
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Weight138 g460 g
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ColorsBlue, RedGray, Green, Silver
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Display
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Display typeIPS capacitive touchscreenIPS TFT
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Physical size5.7 inches10.36 inches
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Resolution720 x 1520 pixels2000 x 1200 pixels
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Pixel density295 ppi225 ppi
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Display colors1677721616777216
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Protection-Scratch resistant
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MultitouchYes-
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Hardware
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CPU-Octa-core
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CPUQuad-core 2.0 GHz Cortex-A53Quad-core 2.0 GHz Cortex-A75
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CPU(second)quad-core 2.0 GHz Cortex-A55
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ChipsetMediatek MT6761 Helio A22Unisoc Tiger T618
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GPUPowerVR GE8320Mali-G52 3EE
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Memory RAM2 GB8 GB
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Internal storage16 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max128 GB-
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Storage-eMMC 5.1
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OS
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OSAndroid 9.0 PieAndroid 11, Doke OS 2.0
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Main camera
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Camera typeDualSingle
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Main camera8 MP13 MP, f/2.2
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0.3 MP
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera flashLED flashLED flash
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Camera features-Autofocus, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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Selfie camera
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Selfie camera type-Single
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Selfie camera5 MP8 MP, f/2.4 , 1/4" , 1.12 µm
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Selfie camera resolution-3264 x 2448 pixels
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Selfie camera features-Face unlock
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Selfie camera video-1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes, with stereo speakers
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Earpiece-Yes
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Multimedia
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RadioFM RadioFM Radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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Wi-Fi display-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 2.0
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USB On-The-Go-Yes
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Bluetoothv4.1v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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BDS-Yes
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Features
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SensorsAccelerometer, fingerprint, proximityAccelerometer, hall
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2700 mAh6580 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time 4G-31 h
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Standby time 4G-672 h
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Cost
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Price110 USD280 USD
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Tests and performance
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Antutu-224918 (v9)
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Geekbench(single-core)-386 (v5.2)
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Geekbench(multi-core)-1443 (v5.2)