Xiaomi Redmi K40 vs vivo iQOO Z8 (China)
Xiaomi Redmi K40
vivo iQOO Z8 (China)
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800GSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xHSDPA 850, 900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42LTE frequency band 1, 3, 5, 8, 28, 34, 38, 39, 40, 41
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5G network5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub65G band 1, 5, 8, 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, 1174 Mbps download, 210 Mbps uploadLTE-A
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GPRSYesYes
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EDGEClass 8Yes
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Availability
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Oficially announced2021-022023-08
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Status2021-032023-09
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Design
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BuildGlass, MetalGlass, plastic
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.7 mm164.6 mm
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Width76.4 mm75.8 mm
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Thickness7.8 mm8.8 mm
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Weight196 g200 g
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ColorsAurora, Black, WhiteBlack, Blue, Silver
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Display
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Display typeSuper AMOLEDIPS LCD
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Physical size6.67 inches6.64 inches
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Resolution1080 x 2400 pixels1080 x 2388 pixels
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Pixel density395 ppi395 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 3D curved glass screen, Corning Gorilla Glass 5-
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Display features120Hz, HDR10+, 1300 nits (peak), sunscreen 3.0, night light screen120Hz
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.2 GHz Kryo 585Single-core 3.1 GHz Cortex-A78
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CPU(second)Triple-core 2.42 GHz Kryo 585Triple-core 3.0 GHz Cortex-A78
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CPU(third)Quad-core 1.80 GHz Kryo 585Quad-core 2.0 GHz Cortex-A55
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ChipsetQualcomm SM8250-AC Snapdragon 870 5GMediaTek Dimensity 8200
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GPUAdreno 650Mali-G610 MC6
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Internal storage128, 256 GB128, 256, 512 GB
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Memory RAM6, 8, 12 GB8, 12 GB
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Memory cardNoNo
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StorageUFS 3.1UFS 3.1
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OS
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OSAndroid 11, MIUI 12Android 13, Origin OS 3
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Main camera
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Camera typeTripleDual
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Main camera(wide) , 48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm(wide) , 64 MP, f/1.8 , 1/2" , 0.7 µm
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(ultrawide) , 8 MP, f/2.2 , 119˚(depth) , 2 MP, f/2.4
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(macro) , 5 MP, 50 mm, 1/5.0" , 1.12 µm
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Primary camera resolution8000 x 6000 pixels8120 x 6180 pixels
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Primary camera video4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS4K@30fps, 1080p@30fps
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Primary camera flashLED flashdual-LED dual-tone 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, 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) , 20 MP, 1/3.4" , 0.8 µm(wide) , 8 MP, f/2.5
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Selfie camera resolution5184 x 3880 pixels3264 x 2448 pixels
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Selfie camera featuresFace unlock, HDR-
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Selfie camera video1080p@30fps, 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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RadioNoNo
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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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Bluetoothv5.1v5.3
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD
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InfraredYes-
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NFCYesYes
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GPSYes, with dual-band A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BDSYesYes
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QZSSYesYes
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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 capacity4520 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQuick Charge 3.0 (100% in 52 min)Yes, 120W
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Tests and performance
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Antutu673599 (v8)-
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Geekbench(single-core)928 (v5.2)-
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Geekbench(multi-core)3260 (v5.2)-
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Cost
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Price470 USD240 USD