Oppo Reno 4 5G vs Xiaomi Redmi K40S
Oppo Reno 4 5G
Xiaomi Redmi K40S
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMAGSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DOHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41LTE frequency band 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
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5G network5G band 1, 3, 41, 77, 78, 79 SA/NSA5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
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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-ALTE-A
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5G speed3.7 Gbps download, 1.6 Gbps upload-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-062022-03
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Status2020-062022-03
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Design
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BuildGlass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frameGlass front (Gorilla Glass 5), plastic back
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height159.3 mm163.2 mm
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Width74 mm76 mm
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Thickness7.8 mm7.7 mm
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Weight183 g195 g
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Splash resistant-Yes
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ColorsBlack, Blue, PurpleBlack, Blue, Gray, Green
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Display
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Display typeAMOLEDAMOLED
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Physical size6.55 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 6Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5
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Display features430 nits typ. brightness120Hz, HDR10+, 1300 nits (peak)
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 2.4 GHz Kryo 475 PrimeSingle-core 3.2 GHz Kryo 585
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CPU(second)Single-core 2.2 GHz Kryo 475 GoldTriple-core 2.42 GHz Kryo 585
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CPU(third)Hexa-core 1.8 GHz Kryo 475 SilverQuad-core 1.80 GHz Kryo 585
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ChipsetQualcomm SDM765 Snapdragon 765GQualcomm SM8250-AC Snapdragon 870 5G
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GPUAdreno 620Adreno 650
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Memory RAM8 GB6, 8, 12 GB
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Internal storage128, 256 GB128, 256 GB
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Memory cardNoNo
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StorageUFS 2.1UFS 3.1
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OS
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OSColorOS 7.2 (Android 10.0)Android 12, MIUI 13
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Main camera
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Camera typeTripleTriple
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Main camera48 MP, f/1.7 , 26 mm, 1/2.0" , 0.8 µm48 MP, f/1.8 , 1/2" , 0.8 µm, (wide)
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8 MP, f/2.2 , 1/4.0" , 1.12 µm8 MP, (ultrawide) , 119˚
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2 MP, f/2.42 MP, f/2.4 , (macro)
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Primary camera resolution8000 x 6000 pixels8000 x 6000 pixels
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Primary camera video4K@30fps, 1080p@30/60/120fps; gyro-EIS, HDR4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS
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Primary camera flashLED flashdual-LED dual-tone flash
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Camera featuresAutofocus, continuous autofocus, 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, contrast detection autofocusAutofocus, continuous shooting, digital zoom, optical 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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DxOMark photo104-
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DxOMark zoom53-
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DxOMark video102-
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DxOMark camera score105-
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Selfie camera
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Selfie camera typeDualSingle
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Selfie camera32 MP, f/2.4 , 26 mm, 1/2.8" , 0.8 µm20 MP, (wide)
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Selfie camera resolution6560 x 4928 pixels-
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Selfie camera features-Face unlock, HDR
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Selfie camera video1080p@30fps, gyro-EIS1080p@30/120fps
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes, with stereo speakers
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EarpieceYesYes
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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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Wi-Fi displayYes-
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WLAN WiFi Dual BandYesYes
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USBType-C 1.0 reversible connectorType-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.1v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCYesYes
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GPSYes, with A-GPSYes, with 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 capacity4000 mAh4500 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingSuper VOOC 2.0(60% in 15 min, 100% in 36 min)Quick Charge 3+, 67W (100% in 38 min)
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Cost
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Price430 USD290 USD
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Multimedia
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Radio-No
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Tests and performance
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Antutu-715000 (v9)
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Geekbench(single-core)-983 (v5.2)
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Geekbench(multi-core)-3362 (v5.2)