Xiaomi Redmi 8A Dual vs vivo V21s
Xiaomi Redmi 8A Dual
vivo V21s
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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, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500)LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
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5G network-5G band 1, 28, 40, 41, 77, 78, 79 SA/NSA
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 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 speed-LTE-A, Cat12, 1200 Mbps download, 150 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-022022-11
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Status2020-022022-11
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Design
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BuildPlasticPlastic
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SIMDual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height156.5 mm159.7 mm
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Width75.4 mm73.9 mm
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Thickness9.4 mm7.3 mm
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Weight188 g176 / 177 g
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Splash resistantYes-
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ColorsBlack, Blue, RedBlue, Gradient
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Display
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Display typeIPS LCD capacitive touchscreenAMOLED
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Physical size6.22 inches6.44 inches
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Resolution720 x 1520 pixels1080 x 2404 pixels
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Pixel density270 ppi409 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 5Scratch resistant
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MultitouchYes-
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Display features400 nits typ. brightness-
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 1.95 GHz Cortex-A53Dual-core 2.4 GHz Cortex-A76
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CPU(second)quad-core 1.45 GHz Cortex-A53Hexa-core 2.0 GHz Cortex-A55
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ChipsetQualcomm SDM439 Snapdragon 439MediaTek MT6853 Dimensity 800U
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GPUAdreno 505Mali-G57 MC3
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Memory RAM2, 3 GB8 GB
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Internal storage32 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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StorageeMMC 5.1UFS 2.2
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OS
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OSMIUI 11 (Android 9.0 Pie)Android 12, Funtouch 12
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Main camera
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Camera typeDualTriple
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Main camera13 MP, f/2.2 , 1/3.1" , 1.12 µm64 MP, f/1.8 , 0.7 µm, (wide) , 26 mm
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2 MP, f/2.48 MP, f/2.2 , (ultrawide) , 120˚ , 16 mm, 1/4.0" , 1.12 µm
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(macro) , 2 MP, f/2.4
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Primary camera resolution-9280 x 6920 pixels
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Primary camera video1080p@30fps4K@30fps, 1080p@30/60fps
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Primary camera flashLED flashLED flash
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Camera featuresHDR, PanoramaAutofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, 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/2.0 , 1/4" , 1.12 µm44 MP, f/2.0 , (wide) , 150 mm
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Selfie camera features-Autofocus, face unlock, HDR, optical image stabilization
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Selfie camera video1080p@30fps4K@30fps, 1080p@30fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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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 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual Band-Yes
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USBType-C reversible connectorType-C 2.0
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USB On-The-GoYesYes
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Bluetoothv4.2v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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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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BeidouYes-
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BDS-Yes
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Features
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SensorsAccelerometer, compass, proximityAccelerometer, compass, fingerprint, gyroscope, proximity
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Power bank functionYes-
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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 capacity5000 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesYes, 33W (63% in 30 min)
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Cost
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Price90 USD360 USD
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Tests and performance
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Antutu-368414 (v9)
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Geekbench(single-core)-363 (v5.2)
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Geekbench(multi-core)-1353 (v5.2)