Oppo A57s vs Xiaomi Redmi 9AT
Oppo A57s
Xiaomi Redmi 9AT
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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, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41LTE frequency band 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTELTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-082020-09
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Status2022-092020-09
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Design
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BuildGlass front (Panda Glass), plastic frame, plastic back-
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.8 mm164.9 mm
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Width75 mm77 mm
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Thickness8 mm9 mm
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Weight187 g194 g
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WaterproofIPX4-
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Dust proofIP5X-
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ColorsBlack, BlueBlue, Gray, Green
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Display
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Display typeIPS LCDIPS LCD
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Physical size6.56 inches6.53 inches
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Resolution720 x 1612 pixels720 x 1600 pixels
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Pixel density269 ppi269 ppi
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Display colors1677721616777216
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Display features480 nits (typ), 600 nits (HBM)400 nits (typ)
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.3 GHz Cortex-A53Quad-core 2.0 GHz Cortex-A53
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CPU(second)quad-core 1.8 GHz Cortex-A53quad-core 1.5 GHz Cortex-A53
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ChipsetMediaTek MT6765G Helio G35MediaTek Helio G25
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GPUPowerVR GE8320PowerVR GE8320
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Memory RAM4 GB2 GB
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Internal storage64 GB32 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max1 TB-
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StorageeMMC 5.1eMMC 5.1
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OS
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OSAndroid 12, ColorOS 12.1Android 10, MIUI 12
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Main camera
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Camera typeDualSingle
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Main camera(wide) , 50 MP, f/1.8 , 27 mm, 0.64 µm(wide) , 13 MP, f/2.2 , 28 mm, 1.0 µm
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(depth) , 2 MP, f/2.4
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Primary camera video1080p@30fps1080p@30/60fps
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Primary camera flashLED flashLED flash
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Camera featuresHDR, PanoramaHDR
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera(wide) , 8 MP, f/2.0 , 26 mm(wide) , 5 MP, f/2.2 , 1.12 µm
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Selfie camera featuresPanoramaHDR
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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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LoudspeakerYes, with stereo speakersYes
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EarpieceYesYes
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Multimedia
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RadioNoFM Radio
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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 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYes-
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USBType-C 2.0microUSB 2.0
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USB On-The-GoYesYes
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Bluetoothv5.3v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCYesNo
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYes-
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BDSYesYes
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Features
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SensorsAccelerometer, compass, fingerprint, proximityAccelerometer, 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 capacity5000 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingSuperVOOC, 33W (100% in 69 min)-
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Tests and performance
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Antutu110000 (v8)102778 (v8)
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Cost
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Price190 USD150 USD
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SAR value
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SAR(head)-0.87 W/kg
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SAR(body)-1.01 W/kg
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SAR EU(head)-0.78 W/kg
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SAR EU(body)-1.03 W/kg
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