vivo X51 5G vs vivo Y81
vivo X51 5G
vivo Y81
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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5G network5G band 1, 3, 7, 8, 28, 38, 41, 77, 78 SA/NSA-
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE-ALTE, Cat7, 301 Mbps download, 102 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2020-092018-6
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Status2020-102018-6
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Design
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BuildGlass front, glass back, aluminum frameAluminium alloy, plastic
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height158.5 mm155 mm
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Width72.8 mm75 mm
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Thickness8 mm7.77 mm
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Weight181.5 g146 g
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ColorsGrayBlack
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Display
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Display typeAMOLEDIPS capacitive touchscreen
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Physical size6.56 inches6.22 inches
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Resolution1080 x 2376 pixels720 x 1520 pixels
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Pixel density398 ppi270 ppi
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Display colors1677721616777216
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ProtectionScratch resistantCorning Gorilla Glass
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Multitouch-Yes
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Display features90Hz, HDR10+-
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DxOMark display score87-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 2.4 GHz Kryo 475 PrimeQuad-core 2.0 GHz Cortex-A53
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CPU(second)Single-core 2.2 GHz Kryo 475 Goldquad-core 1.5 GHz Cortex-A53
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CPU(third)Hexa-core 1.8 GHz Kryo 475 Silver
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ChipsetQualcomm SM7250 Snapdragon 765GMediaTek Helio P22 MT6762
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GPUAdreno 620PowerVR GE8320
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Internal storage256 GB32 GB
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Memory RAM8 GB3 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-256 GB
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StorageUFS 2.1eMMC 5.1
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OS
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OSAndroid 10, Funtouch 10.0Android 8.1 Oreo
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Main camera
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Camera typeQuad-
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Main camera(wide) , 48 MP, f/1.6 , 1/1.2" , 0.8 µm13 MP, f/2.2
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(periscope telephoto) , 8 MP, f/3.4 , 135 mm, 1/4.0" , 5x optical zoom
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(portrait) , 13 MP, f/2.5 , 50 mm, 1/2.8" , 0.8 µm, 2x optical zoom
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(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
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Primary camera resolution8000 x 6000 pixels4160 x 3120 pixels
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Primary camera video4K@30fps, 1080p@30fps, gyro-EIS1080p@30fps
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Primary camera flashdual-LED dual-tone flashLED flash
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Camera featuresAutofocus, 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 autofocusAutofocus, continuous shooting, digital zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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DxOMark photo117-
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DxOMark zoom67-
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DxOMark video102-
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DxOMark camera score114-
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Selfie camera
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Selfie camera typeSingle-
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Selfie camera(wide) , 32 MP, f/2.5 , 26 mm, 1/2.8" , 0.8 µm5 MP, f/2.2
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Selfie camera resolution6528 x 4896 pixels2592 x 1944 pixels
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Selfie camera featuresFace unlock-
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Selfie camera video1080p@30fps1080p@30fps
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DxOMark photo82-
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DxOMark video78-
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DxOMark camera score81-
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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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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
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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 2.0microUSB 2.0
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USB On-The-GoYesYes
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Bluetoothv5.1v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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Bluetooth AptXaptX HD-
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NFCYes-
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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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BDSYes-
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Features
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SensorsAccelerometer, color spectrum, compass, fingerprint, gyroscope, proximityAccelerometer, gyroscope, light, 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 capacity4315 mAh3260 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingVivo FlashCharge (57% in 30 min)Yes
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DxOMark autonomy45-
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DxOMark charging80-
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DxOMark efficiency68-
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DxOMark battery score60-
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Tests and performance
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Antutu333912 (v8)-
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Geekbench(single-core)672 (v5.2)-
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Geekbench(multi-core)1969 (v5.2)-
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Cost
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Price940 USD-