Oppo K7x vs vivo V21s
Oppo K7x
vivo V21s
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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 1xEV-DOHSDPA 850, 900, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
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5G network5G band 1, 41, 77, 78 SA/NSA5G band 1, 28, 40, 41, 77, 78, 79 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 (2CA)LTE-A, Cat12, 1200 Mbps download, 150 Mbps upload
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5G speed2.3 Gbps download-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-112022-11
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Status2020-112022-11
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Design
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BuildPlasticPlastic
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SIMDual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height162.2 mm159.7 mm
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Width75.1 mm73.9 mm
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Thickness9.1 mm7.3 mm
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Weight194 g176 / 177 g
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ColorsBlack, BlueBlue, Gradient
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Display
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Display typeLTPS IPS LCDAMOLED
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Physical size6.5 inches6.44 inches
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Resolution1080 x 2400 pixels1080 x 2404 pixels
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Pixel density405 ppi409 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3Scratch resistant
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Display features480 nits (typ), 600 nits (peak), 90Hz-
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Hardware
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CPUOcta-coreOcta-core
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CPUDual-core 2.0 GHz Cortex-A76Dual-core 2.4 GHz Cortex-A76
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CPU(second)Hexa-core 2.0 GHz Cortex-A55Hexa-core 2.0 GHz Cortex-A55
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ChipsetMediaTek MT6853V Dimensity 720 5GMediaTek MT6853 Dimensity 800U
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GPUMali-G57 MC3Mali-G57 MC3
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Memory RAM6 GB8 GB
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Internal storage128 GB128 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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StorageUFS 2.1UFS 2.2
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OS
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OSAndroid 10, ColorOS 7.2Android 12, Funtouch 12
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Main camera
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Camera typeQuadTriple
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Main camera(wide) , 48 MP, f/1.7 , 25 mm, 1/2.0" , 0.8 µm(wide) , 64 MP, f/1.8 , 26 mm, 0.7 µm
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(ultrawide) , 8 MP, f/2.2 , 119˚ , 1/4.0" , 1.12 µm(ultrawide) , 8 MP, f/2.2 , 120˚ , 1/4.0" , 1.12 µm, 16 mm
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(macro) , 2 MP, f/2.4(macro) , 2 MP, f/2.4
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(depth) , 2 MP, f/2.4
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Primary camera resolution8000 x 6000 pixels9280 x 6920 pixels
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Primary camera video4K@30fps, 1080p@30/60/120fps; gyro-EIS4K@30fps, 1080p@30/60fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase 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, 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) , 16 MP, f/2.0 , 26 mm, 1/3.06" , 1.0 µm(wide) , 44 MP, f/2.0 , 150 mm
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Selfie camera resolution4640 x 3456 pixels-
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Selfie camera featuresFace unlock, HDRAutofocus, face unlock, HDR, optical image stabilization
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Selfie camera video1080p@30fps4K@30fps, 1080p@30fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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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
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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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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Bluetoothv5.0v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptXaptX HD-
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NFCNoYes
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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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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximityAccelerometer, 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 capacity5000 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingVOOC 4.0 (100% in 65 min)Yes, 33W (63% in 30 min)
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Reverse chargingYes-
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Tests and performance
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Antutu240000 (v8)368414 (v9)
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Geekbench(single-core)585 (v5.2)363 (v5.2)
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Geekbench(multi-core)1775 (v5.2)1353 (v5.2)
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Cost
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Price230 USD360 USD