Oppo K9 vs vivo Y21G
Oppo K9
vivo Y21G
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800GSM 850, 900, 1800, 1900
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3G networkHSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xHSDPA 850, 900, 2100
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4G networkLTE frequency band 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41LTE frequency band 1, 3, 5, 8, 38, 40, 41
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5G network5G band 1, 3, 28, 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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EV-DO speed-EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE-A, 1200 Mbps download, 210 Mbps uploadLTE, Cat4, 150 Mbps download, 51 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2021-052022-04
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Status2021-052022-04
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Design
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BuildAluminium alloy, glassGlass front, 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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Height159.1 mm164.3 mm
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Width73.4 mm76.1 mm
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Thickness7.9 mm8 mm
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Weight172 g182 g
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ColorsAurora, BlackBlue, Diamond Glow
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Display
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Display typeSuper AMOLEDIPS LCD
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Physical size6.43 inches6.51 inches
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Resolution1080 x 2400 pixels720 x 1600 pixels
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Pixel density409 ppi270 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 2.5D curved glass screen-
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Display features90Hz, 430 nits (typ), 750 nits (peak)-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 2.8 GHz Kryo 475 PrimeDual-core 2.0 GHz Cortex-A75
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CPU(second)Single-core 2.4 GHz Kryo 475 GoldHexa-core 1.7 GHz Cortex-A55
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CPU(third)Hexa-core 1.8 GHz Kryo 475 Silver
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ChipsetQualcomm SM7250-AC Snapdragon 768G 5GMediatek MT6769 Helio G70
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GPUAdreno 620Mali-G52 2EEMC2
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Internal storage128, 256 GB64 GB
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Memory RAM8 GB4 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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OS
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OSAndroid 11, ColorOS 11.1Android 11, Funtouch 11.1
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Main camera
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Camera typeTripleDual
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Main camera(wide) , 64 MP, f/1.7 , 80˚ , 1/2.0" , 0.8 µm, 20x digital zoom(wide) , 13 MP, f/2.2
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(ultrawide) , 8 MP, f/2.2 , 119˚(macro) , 2 MP, f/2.4
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(macro) , 2 MP, f/2.4
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Primary camera resolution9280 x 6920 pixels4160 x 3120 pixels
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Primary camera video4K@30fps, 1080p@30/60/120fps; gyro-EIS1080p@30fps
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Primary camera flashLED flashLED 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, 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
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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 , 80˚ , 0.8 µm(wide) , 8 MP, f/2.0
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Selfie camera resolution6560 x 4928 pixels3264 x 2448 pixels
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Selfie camera featuresFace unlock, digital image stabilization-
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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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LoudspeakerYesYes
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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 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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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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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptXaptX HD-
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NFCNoNo
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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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QZSSYes-
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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximityAccelerometer, compass, fingerprint, 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 capacity4300 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingVOOC 4.0 (100% in 35 min)Yes, 18W
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Tests and performance
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Antutu449750 (v8)194000 (v8)
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Geekbench(single-core)602 (v5.2)356 (v5.2)
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Geekbench(multi-core)1877 (v5.2)1149 (v5.2)
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Cost
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Price310 USD190 USD
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