Blackview OSCAL C20 vs Xiaomi Redmi K50 Ultra
Blackview OSCAL C20
Xiaomi Redmi K50 Ultra
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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4G network-LTE frequency band 1, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
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5G network-5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
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HSDPA speed21.1 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speed-LTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2021-072022-08
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Status2021-072022-08
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Design
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BuildPlasticAluminium alloy, glass
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height155.4 mm163.1 mm
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Width73.3 mm75.9 mm
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Thickness9.75 mm8.6 mm
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Weight152 g202 g
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ColorsBlack, Blue, Green, PurpleBlack, Blue, Gray, Mercedes AMG
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Display
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Display typeIPS TFTOLED
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Physical size6.09 inches6.67 inches
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Resolution720 x 1560 pixels1220 x 2712 pixels
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Pixel density282 ppi446 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screenScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass Victus
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Display features-144Hz, HDR10+, Dolby Vision
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A7Single-core 3.19 GHz Cortex-X2
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CPU(second)Triple-core 2.75 GHz Cortex-A710
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CPU(third)Quad-core 1.8 GHz Cortex-510
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ChipsetUnisoc SC7731EQualcomm SM8475 Snapdragon 8+ Gen 1
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GPUMali-820 MP1Adreno 730
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Memory RAM1 GB8, 12 GB
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Internal storage32 GB128, 256, 512 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max128 GB-
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StorageeMMC 5.0UFS 3.1
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OS
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OSDoke OS 2.0 (Android 11 Go Edition)Android 12, MIUI 13
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Main camera
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Camera typeSingleTriple
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Main camera5 MP, f/2.0108 MP, f/1.6 , (wide) , 1/1.67" , 0.64 µm
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(ultrawide) , 8 MP, f/2.2 , 120˚
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(macro) , 2 MP, f/2.4
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Primary camera resolution2560 x 1944 pixels12000 x 9000 pixels
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Primary camera video1080p@30fps4K@30/60fps, 1080p@30/60/120/240/960fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, geotagging, panorama, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-modeAutofocus, 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 sensor
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera2 MP20 MP, (wide)
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Selfie camera resolution1920 x 1080 pixels-
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Selfie camera featuresFace unlockHDR
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Selfie camera video720p@30fps1080p@30/60fps, 720p@120fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes, with stereo speakers
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EarpieceYesYes
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Multimedia
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RadioFM RadioNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-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 Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv4.2v5.2
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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Infrared-Yes
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NFCNoYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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GALILEO-Yes
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BDSYesYes
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QZSS-Yes
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NavIC-Yes
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Features
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SensorsAccelerometer, light, 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-IonLi-Po
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Battery capacity3380 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Quick Charge 3+, 120W (100% in 19 min)
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Tests and performance
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Antutu23006 (v8)1135000 (v9)
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Geekbench(single-core)59 (v5.2)1245 (v5.2)
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Geekbench(multi-core)185 (v5.2)4209 (v5.2)
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Cost
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Price70 USD450 USD
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