Allview V4 Viper Pro vs Doogee S51
Allview V4 Viper Pro
Doogee S51
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900
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3G networkHSDPA 900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600), 20(800), 38(2600)LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
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HSDPA speed21.1 Mbps-
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HSUPA speed5.76 Mbps-
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EV-DO speed-EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE Cat 4, 150 Mbps download, 50 Mbps uploadLTE, Cat7, 301 Mbps download, 102 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-12022-09
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Status2020-12022-09
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Design
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Build-Metal, rubber, polycarbonate
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SIMHybrid Dual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height171 mm167.4 mm
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Width82 mm81.4 mm
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Thickness8.8 mm14.6 mm
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Weight191.6 g266 g
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Waterproof-IP68/IP69K
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Dust proof-IP68/IP69K
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MIL-STD-810H-Yes
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ColorsGreyBlack, Green, Orange
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD
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Physical size6.8 inches6.0 inches
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Resolution640 x 1352 pixels720 x 1440 pixels
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Pixel density220 ppi268 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, Corning Gorilla Glass
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MultitouchYes-
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A53Octa-core 2.0 GHz Cortex-A53
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ChipsetMediatek MT6739MediaTek Helio G25
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GPUPowerVR GE8100PowerVR GE8320
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Memory RAM2 GB4 GB
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Internal storage32 GB64 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max-512 GB
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StorageeMMC 5.1-
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OS
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OSAndroid 9.0 PieAndroid 12
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Main camera
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Camera typeDualDual
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Main camera13 MP20 MP, (wide) , f/1.8 , 90˚ , 1/2.9" , 1.25 µm
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0.3 MP2 MP, (depth) , f/2.4 , 1/5" , 1.75 µm
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Primary camera resolution-5184 x 3840 pixels
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Primary camera video1080p@30fps1080p
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Primary camera flashLED flashquad-LED flash
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Camera features-Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus
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Selfie camera
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Selfie camera type-Single
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Selfie camera8 MP8 MP, (wide) , f/2.0 , 80˚
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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 video1080p@30fps1080p
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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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 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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Bluetoothv4.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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NFC-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEO-Yes
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BDS-Yes
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Features
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SensorsAccelerometer, fingerprint, proximityAccelerometer, compass, fingerprint, geomagnetic, gyroscope, light, proximity
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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 capacity3500 mAh5180 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time 3G-24 h
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Talk time 4G-24 h
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Standby time 3G-360 h
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Standby time 4G-360 h
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Cost
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Price190 USD155 USD
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Tests and performance
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Antutu-102000 (v8)
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Geekbench(single-core)-166 (v5.2)
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Geekbench(multi-core)-968 (v5.2)