Xiaomi Redmi K50 Ultra vs vivo Y51 IN
Xiaomi Redmi K50 Ultra
vivo Y51 IN
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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 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xHSDPA 850, 900, 2100
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4G networkLTE frequency band 1, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42LTE frequency band 1, 3, 5, 8, 40
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5G network5G 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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EV-DO speed-EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE-ALTE-A, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-082020-12
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Status2022-082020-12
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Design
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BuildAluminium alloy, glass-
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.1 mm163.9 mm
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Width75.9 mm75.3 mm
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Thickness8.6 mm8.4 mm
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Weight202 g188 g
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ColorsBlack, Blue, Gray, Mercedes AMGCrystal Symphony, Titanium Sapphire
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Display
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Display typeOLEDIPS LCD
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Physical size6.67 inches6.58 inches
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Resolution1220 x 2712 pixels1080 x 2408 pixels
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Pixel density446 ppi415 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass Victus-
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Display features144Hz, HDR10+, Dolby Vision-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.19 GHz Cortex-X2Quad-core 2.0 GHz Kryo 260 Gold
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CPU(second)Triple-core 2.75 GHz Cortex-A710quad-core 1.8 GHz Kryo 260 Silver
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CPU(third)Quad-core 1.8 GHz Cortex-510
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ChipsetQualcomm SM8475 Snapdragon 8+ Gen 1Qualcomm SDM665 Snapdragon 665
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GPUAdreno 730Adreno 610
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Memory RAM8, 12 GB8 GB
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Internal storage128, 256, 512 GB128 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-1 TB
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StorageUFS 3.1-
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OS
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OSAndroid 12, MIUI 13Android 11, Funtouch 11
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Main camera
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Camera typeTripleTriple
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Main camera(wide) , 108 MP, f/1.6 , 1/1.67" , 0.64 µm(wide) , 48 MP, f/1.8 , 1/2.0" , 0.8 µm
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(ultrawide) , 8 MP, f/2.2 , 120˚(ultrawide) , 8 MP, f/2.2 , 120˚ , 1/4.0" , 1.12 µm
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(macro) , 2 MP, f/2.4(macro) , 2 MP, f/2.4
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Primary camera resolution12000 x 9000 pixels8000 x 6000 pixels
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Primary camera video4K@30/60fps, 1080p@30/60/120/240/960fps4K@30fps, 1080p@30fps, gyro-EIS
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, 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, flicker sensorHDR, Panorama
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera(wide) , 20 MP(wide) , 16 MP, f/2.0 , 1/3.06" , 1.0 µm
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Selfie camera resolution-4640 x 3456 pixels
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Selfie camera featuresHDRHDR
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Selfie camera video1080p@30/60fps, 720p@120fps1080p@30fps
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Sound
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3.5mm jackNoYes
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LoudspeakerYes, with stereo speakersYes
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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, 802.11ac, 802.11axWi-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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Bluetoothv5.2v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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InfraredYes-
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NFCYesNo
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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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NavICYes-
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Features
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SensorsAccelerometer, color spectrum, 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 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQuick Charge 3+, 120W (100% in 19 min)Quick Charge (70% in 67 min)
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Tests and performance
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Antutu1135000 (v9)165000 (v8)
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Geekbench(single-core)1245 (v5.2)-
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Geekbench(multi-core)4209 (v5.2)-
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Cost
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Price450 USD250 USD
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