Oppo A31 vs Oppo A77s
Oppo A31
Oppo A77s
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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, 2100HSDPA 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)LTE frequency band 1, 3, 5, 7, 8, 28, 38, 40, 41
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HSDPA speed42 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE-ALTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-022022-10
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Status2020-022022-10
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Design
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BuildPlasticGlass front, plastic frame, plastic back or eco leather back
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.9 mm163.8 mm
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Width75.5 mm75 mm
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Thickness8.3 mm8 mm
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Weight180 g187/190 g
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Waterproof-IP54
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Dust proof-IP54
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ColorsBlack, WhiteBlack, Orange
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Display
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Display typeIPS capacitive touchscreenIPS LCD
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Physical size6.5 inches6.56 inches
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Resolution720 x 1600 pixels720 x 1612 pixels
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Pixel density270 ppi269 ppi
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Display colors1677721616777216
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ProtectionScratch resistantScratch resistant, 2.5D curved glass screen
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MultitouchYes-
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Display features-90Hz, 480 nits (typ), 600 nits (HBM)
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.3 GHz Cortex-A53Quad-core 2.4 GHz Kryo 265 Gold
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CPU(second)quad-core 1.8 GHz Cortex-A53quad-core 1.9 GHz Kryo 265 Silver
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ChipsetMediatek MT6765V/CB Helio P35Qualcomm SM6225 Snapdragon 680 4G
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GPUPowerVR GE8320Adreno 610
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Memory RAM4 GB8 GB
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Internal storage128 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max256 GB64 GB
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StorageeMMC 5.1UFS 2.2
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OS
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OSColorOS 6.1 (Android 9.0 Pie)Android 12, ColorOS 12.1
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Main camera
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Camera typeTripleDual
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Main camera12 MP, f/1.850 MP, f/1.8 , (wide) , 77˚
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2 MP, f/2.4 , 27 mm2 MP, f/2.4 , (depth) , 89˚ , 1/5" , 1.75 µm
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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@30fps1080p@30fps
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Primary camera flashLED 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 camera type-Single
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Selfie camera8 MP, f/2.08 MP, f/2.0 , (wide) , 26 mm
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1/5.0" , 1.75 µm
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Selfie camera resolution3264 x 2448 pixels3264 x 2448 pixels
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Selfie camera features-Panorama
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Selfie camera video1080p@30fps1080p@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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EarpieceYesYes
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Multimedia
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RadioFM RadioNo
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11acWi-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 DirectYesYes
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Wi-Fi displayYes-
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WLAN WiFi Dual BandYesYes
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USBmicroUSB 2.0Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD
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NFC-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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GALILEO-Yes
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BDSYesYes
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QZSS-Yes
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Features
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SensorsAccelerometer, compass, fingerprint, light, proximityAccelerometer, compass, fingerprint, proximity
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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 capacity4230 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-SuperVOOC, 33W (100% in 69 min)
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Cost
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Price200 USD220 USD
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Tests and performance
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Geekbench(single-core)-380 (v5.2)
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Geekbench(multi-core)-1657 (v5.2)
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