Oppo F21 Pro vs Xiaomi Redmi K40
Oppo F21 Pro
Xiaomi Redmi K40
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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, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 3, 5, 8, 38, 40, 41LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42
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5G network-5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub6
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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 speedLTE-A, 391 Mbps download, 150 Mbps uploadLTE-A, 1174 Mbps download, 210 Mbps upload
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GPRSYesYes
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EDGEYesClass 8
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Availability
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Oficially announced2022-042021-02
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Status2022-042021-03
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Design
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BuildAluminium alloy, glassGlass, Metal
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height159.9 mm163.7 mm
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Width73.2 mm76.4 mm
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Thickness7.5 mm7.8 mm
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Weight175 g196 g
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WaterproofIPX4-
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Dust proofIPX4-
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Build featuresRGB ring light around the camera (notifications, charging progress)-
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ColorsBlack, OrangeAurora, Black, White
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Display
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Display typeAMOLEDSuper AMOLED
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Physical size6.43 inches6.67 inches
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Resolution1080 x 2400 pixels1080 x 2400 pixels
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Pixel density409 ppi395 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 5Scratch resistant, 3D curved glass screen, Corning Gorilla Glass 5
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Display features90Hz, 430 nits (typ), 600 nits (HBM), 800 nits (peak)120Hz, HDR10+, 1300 nits (peak), sunscreen 3.0, night light screen
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.4 GHz Kryo 265 GoldSingle-core 3.2 GHz Kryo 585
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CPU(second)quad-core 1.9 GHz Kryo 265 SilverTriple-core 2.42 GHz Kryo 585
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CPU(third)Quad-core 1.80 GHz Kryo 585
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ChipsetQualcomm SM6225 Snapdragon 680 4GQualcomm SM8250-AC Snapdragon 870 5G
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GPUAdreno 610Adreno 650
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Memory RAM8 GB6, 8, 12 GB
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Internal storage128 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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StorageUFS 2.2UFS 3.1
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OS
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OSAndroid 12, ColorOS 12.1Android 11, MIUI 12
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Main camera
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Camera typeTripleTriple
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Main camera(wide) , 64 MP, f/1.7 , 79˚ , 26 mm, 1/2.0" , 0.7 µm(wide) , 48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm
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(microscope) , 2 MP, f/3.3 , 65˚(ultrawide) , 8 MP, f/2.2 , 119˚
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89˚ , (depth) , 2 MP, f/2.4 , 1.75 µm(macro) , 5 MP, 1.12 µm, 50 mm, 1/5.0"
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Primary camera resolution9280 x 6920 pixels8000 x 6000 pixels
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Primary camera video1080p@30fps, gyro-EIS4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous autofocus, continuous shooting, digital zoom, digital 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, contrast detection autofocusAutofocus, 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 typeSingleSingle
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Selfie camera(wide) , 32 MP, f/2.4 , 24 mm, 1/2.74" , 0.7 µm(wide) , 20 MP, 1/3.4" , 0.8 µm
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Selfie camera resolution-5184 x 3880 pixels
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Selfie camera featuresFace unlock, HDRFace unlock, HDR
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Selfie camera video1080p@30fps, gyro-EIS1080p@30fps, 720p@120fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes, with stereo speakers
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EarpieceYesYes
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Multimedia
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RadioNoNo
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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, 802.11ax
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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USBType-C 2.0Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.1v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptXaptX HD-
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Infrared-Yes
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NFCYesYes
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GPSYes, with A-GPSYes, with dual-band A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BDSYesYes
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QZSSYesYes
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NavIC-Yes
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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximityAccelerometer, color spectrum, compass, fingerprint, gyroscope, 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 capacity4500 mAh4520 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingSuperVOOC, 33W (100% in 60 min)Quick Charge 3.0 (100% in 52 min)
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Reverse chargingYes-
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Tests and performance
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Antutu220000 (v9)673599 (v8)
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Geekbench(single-core)363 (v5.2)928 (v5.2)
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Geekbench(multi-core)1488 (v5.2)3260 (v5.2)
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Cost
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Price310 USD470 USD