Allview V2 Viper i4G vs vivo X20 Plus UD
Allview V2 Viper i4G
vivo X20 Plus UD
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800; CDMA 800 & TD-SCDMA
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3G networkHSDPA 900, 1900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600), 20(800), 38(2600), 39(1900), 40(2300), 41(2500)LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed21.1 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps upload-
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GPRSClass 12Yes
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EDGEClass 10Yes
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Availability
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Oficially announced2016-42018-1
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Status2016-42018-1
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Design
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Build-Front glass, aluminum body
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SIMDual SIM (Micro-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height143.5 mm155.3 mm
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Width72 mm80.1 mm
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Thickness8.3 mm7.5 mm
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Weight144.5 g181.5 g
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ColorsBlack, WhiteGold, Matte Black, Rose gold
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size5.0 inches6.43 inches
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Resolution720 x 1280 pixels1080 x 2160 pixels
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Pixel density294 ppi376 ppi
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Display colors-16777216
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ProtectionScratch-resistant glass-
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz ARM Cortex-A53Quad-core 2.2 GHz Kryo 260
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CPU(second)quad-core 1.8 GHz Kryo 260
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ChipsetMediatek MT6735Qualcomm MSM8956 Plus Snapdragon 660
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GPUMali-T720Adreno 512
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Memory RAM2 GB4 GB
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Internal storage16 GB128 GB
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Memory cardmicroSDmicroSD(uses second SIM slot)
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Memory card max256 GB256 GB
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OS
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OSAndroid OS, v5.1 (Lollipop)Android 7.1.1 (Nougat)
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Main camera
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Main camera8 MP12 MP, f/1.8
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Primary camera resolution-4032 x 3024 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera5 MP12 MP, f/2.0
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Selfie camera resolution-4032 x 3024 pixels
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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
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Earpiece-Yes
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Multimedia
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Radio-No
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Radio FMFM 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, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0microUSB 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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Bluetooth EDRYes-
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GPSYes, with A-GPSYes, with A-GPS
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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Messaging Push Email-Push Email
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Messaging Push MailPush Mail-
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JavaNo-
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SensorsAccelerometer, compass, proximityFingerprint (under display), accelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2300 mAh3900 mAh
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Battery removableRemovableNon-removable
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Fast battery charging-Yes
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Talk time10 h-
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Standby time210 h-
