Xiaomi Redmi 8A Dual vs vivo S15
Xiaomi Redmi 8A Dual
vivo S15
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1700(AWS), 2100; CDMA2000 1x
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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, 19, 28, 34, 38, 39, 40, 41
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5G network-5G band 1, 3, 5, 8, 28, 41, 77, 78 SA/NSA
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-022022-05
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Status2020-022022-05
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Design
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BuildPlasticAG glass, plastic
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height156.5 mm161.1 mm
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Width75.4 mm74.3 mm
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Thickness9.4 mm8 mm
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Weight188 g197 g
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Splash resistantYes-
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ColorsBlack, Blue, RedBlack, Blue, Yellow
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Display
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Display typeIPS LCD capacitive touchscreenAMOLED
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Physical size6.22 inches6.62 inches
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Resolution720 x 1520 pixels1080 x 2400 pixels
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Pixel density270 ppi398 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 5Scratch resistant, 2.5D curved glass screen
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MultitouchYes-
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Display features400 nits typ. brightness120Hz, HDR10+, 1300 nits (peak)
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 1.95 GHz Cortex-A53Single-core 3.2 GHz Kryo 585
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CPU(second)quad-core 1.45 GHz Cortex-A53Triple-core 2.42 GHz Kryo 585
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CPU(third)Quad-core 1.80 GHz Kryo 585
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ChipsetQualcomm SDM439 Snapdragon 439Qualcomm SM8250-AC Snapdragon 870 5G
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GPUAdreno 505Adreno 650
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Memory RAM2, 3 GB8, 12 GB
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Internal storage32 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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StorageeMMC 5.1UFS 3.1
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OS
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OSMIUI 11 (Android 9.0 Pie)Android 12, Origin OS Ocean
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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/1.9 , 1/1.72" , (wide) , 25 mm
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2 MP, f/2.48 MP, f/2.2 , (ultrawide) , 120˚ , 16 mm
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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@30fps
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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, 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 µm32 MP, f/2.0 , (wide)
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Selfie camera features-Face unlock, autofocus, HDR, face detection, panorama, geotagging, digital image stabilization
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Selfie camera video1080p@30fps1080p@30fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes, with dual 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 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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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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Bluetoothv4.2v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD, aptX Adaptive
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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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QZSS-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 mAh4500 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesYes, 66W (50% in 18 min)
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Talk time 4G-13.8 h
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Cost
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Price90 USD400 USD
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Tests and performance
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Antutu-725000 (v9)
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Geekbench(single-core)-945 (v5.2)
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Geekbench(multi-core)-3413 (v5.2)
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