Xiaomi Redmi K40S vs vivo iQOO Z3
Xiaomi Redmi K40S
vivo iQOO Z3
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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, 1700(AWS), 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42LTE frequency band 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
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5G network5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA5G band 1, 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-ALTE-A, 1200 Mbps download, 210 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-032021-03
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Status2022-032021-04
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Design
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BuildGlass front (Gorilla Glass 5), plastic backAluminium alloy, glass
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SIMDual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height163.2 mm164 mm
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Width76 mm75.3 mm
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Thickness7.7 mm8.5 mm
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Weight195 g185.5 g
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Splash resistantYes-
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ColorsBlack, Blue, Gray, GreenBlack, Blue, Silver
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Display
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Display typeAMOLEDIPS LCD
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Physical size6.67 inches6.58 inches
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Resolution1080 x 2400 pixels1080 x 2408 pixels
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Pixel density395 ppi401 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5Scratch resistant
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Display features120Hz, HDR10+, 1300 nits (peak)HDR10, 120Hz
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.2 GHz Kryo 585Single-core 2.8 GHz Kryo 475 Prime
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CPU(second)Triple-core 2.42 GHz Kryo 585Single-core 2.4 GHz Kryo 475 Gold
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CPU(third)Quad-core 1.80 GHz Kryo 585Hexa-core 1.80 GHz Kryo 475 Silver
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ChipsetQualcomm SM8250-AC Snapdragon 870 5GQualcomm SDM768 Snapdragon 768G 5G
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GPUAdreno 650Adreno 620
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Memory RAM6, 8, 12 GB6, 8 GB
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Internal storage128, 256 GB128, 256 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-1 TB
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StorageUFS 3.1UFS 2.2
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OS
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OSAndroid 12, MIUI 13Android 11, OriginOS for iQOO 1.0
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Main camera
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Camera typeTripleTriple
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Main camera(wide) , 48 MP, f/1.8 , 1/2" , 0.8 µm(wide) , 64 MP, f/1.8 , 1/1.7x" , 0.8 µm, 26 mm
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(ultrawide) , 8 MP, 119˚(ultrawide) , 8 MP, 120˚ , f/2.2 , 16 mm, 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 resolution8000 x 6000 pixels9280 x 6920 pixels
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Primary camera video4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS4K@30fps, 1080p@30fps, gyro-EIS
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Primary camera flashdual-LED dual-tone 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 autofocusAutofocus, continuous shooting, digital zoom, 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(wide) , 16 MP, f/2.0 , 1/3.1" , 1.0 µm
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Selfie camera resolution-4608 x 3456 pixels
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Selfie camera featuresFace unlock, HDRFace unlock
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Selfie camera video1080p@30/120fps1080p@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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Bluetoothv5.2v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD
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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 capacity4500 mAh4400 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQuick Charge 3+, 67W (100% in 38 min)Vivo Super FlashCharge
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Talk time 4G-26 h
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Standby time 4G-432 h
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Tests and performance
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Antutu715000 (v9)449750 (v8)
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Geekbench(single-core)983 (v5.2)678 (v5.2)
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Geekbench(multi-core)3362 (v5.2)1986 (v5.2)
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Cost
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Price290 USD260 USD