Oppo A31
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 2100
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4G networkLTE frequency band 1(2100), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed42 Mbps
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HSUPA speed5.76 Mbps
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LTE speedLTE-A
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2020-02
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Status2020-02
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Design
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BuildPlastic
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SIMDual SIM (Nano-SIM, dual stand-by)
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Height163.9 mm
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Width75.5 mm
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Thickness8.3 mm
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Weight180 g
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ColorsBlack, White
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Display
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Display typeIPS capacitive touchscreen
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Physical size6.5 inches
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Resolution720 x 1600 pixels
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Pixel density270 ppi
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Display colors16777216
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ProtectionScratch resistant
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MultitouchYes
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Hardware
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CPUOcta-core
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CPUQuad-core 2.3 GHz Cortex-A53
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CPU(second)quad-core 1.8 GHz Cortex-A53
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ChipsetMediatek MT6765V/CB Helio P35
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GPUPowerVR GE8320
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Memory RAM4 GB
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Internal storage128 GB
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Memory cardmicroSD, microSDHC, microSDXC
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Memory card max256 GB
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StorageeMMC 5.1
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OS
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OSColorOS 6.1 (Android 9.0 Pie)
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Main camera
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Camera typeTriple
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Main camera12 MP, f/1.8
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2 MP, f/2.4, 27 mm
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2 MP, f/2.4
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Primary camera resolution4096 x 3072 pixels
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Primary camera video1080p@30fps
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Primary camera flashLED flash
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Camera featuresAutofocus, 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 camera8 MP, f/2.0
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1/5.0", 1.75 µm
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Selfie camera resolution3264 x 2448 pixels
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Selfie camera video1080p@30fps
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Sound
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3.5mm jackYes
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LoudspeakerYes
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EarpieceYes
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Multimedia
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RadioFM Radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYes
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WLAN WiFi DirectYes
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Wi-Fi displayYes
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WLAN WiFi Dual BandYes
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USBmicroUSB 2.0
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USB On-The-GoYes
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Bluetoothv5.0
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Bluetooth A2DPYes
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bluetooth LEYes
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GPSYes, with A-GPS
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BDSYes
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Features
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SensorsAccelerometer, compass, fingerprint, light, proximity
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Browser
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HTMLHTML5
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Battery
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Battery typeLi-Po
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Battery capacity4230 mAh
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Battery removableNon-removable
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Cost
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Price200 USD