Allview V3 Viper vs Oppo A1k
Allview V3 Viper
Oppo A1k
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100WCDMA 850, 900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 8(900), 20(800), 38(2600), 39(1900), 40(2300)LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 28(700), 38(2600), 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 uploadLTE Cat 4, 150.8 Mbps download, 51 Mbps upload
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GPRSClass 10Yes
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EDGEClass 10Yes
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Availability
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Oficially announced2018-12019-4
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Status2018-22019-5
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Design
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BuildPlastic, metalPlastic body
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SIMHybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual SIM stand-by)
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Height148.3 mm154.5 mm
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Width71.8 mm73.8 mm
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Thickness8.1 mm8.4 mm
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Weight143.6 g170 g
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ColorsBlack, Gold, SilverBlack, Red
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Display
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Display typeIPS LCD capacitive touchscreenIPS capacitive touchscreen
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Physical size5.5 inches6.1 inches
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Resolution720 x 1440 pixels720 x 1560 pixels
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Pixel density293 ppi282 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 32.5D curved glass screen, scratch resistant, Corning Gorilla Glass 3
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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 GHz Cortex-A53
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CPU(second)quad-core 1.5 GHz Cortex-A53
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ChipsetMediatek MT6737Mediatek Helio P22 (MT6762)
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GPUMali-T720MP2PowerVR GE8320
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Memory RAM3 GB2 GB
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Internal storage32 GB32 GB
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Memory cardmicroSD(uses second SIM slot)microSD, microSDHC, microSDXC
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Memory card max256 GB256 GB
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OS
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OSAndroid 8.0 (Oreo)ColorOS 6.0 (Android 9.0 Pie)
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Main camera
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Camera type-Single
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Main camera13 MP, f/2.08 MP, f/2.2 , 1/3.2" , 1.4 µm
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Primary camera resolution4160 x 3120 pixels3264 x 2448 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocusautofocus-
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face/smile detection, touch focusAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection
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Selfie camera
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FlashLED flash-
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Selfie camera13 MP5 MP, f/2 , 1/5" , 1.12 µm
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Selfie camera resolution4160 x 3120 pixels2560 x 1920 pixels
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Selfie camera video720p@30fps720p@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 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 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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Wi-Fi display-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.2v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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InfraredYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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Beidou-Yes
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Features
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Messaging SMSSMS(threaded view)-
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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SensorsFingerprint (rear-mounted), accelerometer, compass, proximityAccelerometer, proximity, light, compass, fingerprint
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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 capacity3000 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Talk time 2G12 h-
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Talk time 3G12 h-
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Standby time 2G300 h-
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Standby time 3G300 h-
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