Xiaomi Redmi K40 vs vivo X90
Xiaomi Redmi K40
vivo X90
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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 800, 850, 900, 1700(AWS), 1900, 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, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41
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5G network5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub65G band 1, 3, 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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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 announced2021-022022-11
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Status2021-032022-11
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Design
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BuildGlass, MetalGlass front, glass back or eco leather back
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.7 mm164.1 mm
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Width76.4 mm74.4 mm
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Thickness7.8 mm8.5 mm
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Weight196 g196/200 g
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Waterproof-IP64
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Dust proof-IP64
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ColorsAurora, Black, WhiteBlack, Blue, Red
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Display
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Display typeSuper AMOLEDAMOLED
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Physical size6.67 inches6.78 inches
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Resolution1080 x 2400 pixels1260 x 2800 pixels
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Pixel density395 ppi453 ppi
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Display colors167772161073741824
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ProtectionScratch resistant, 3D curved glass screen, Corning Gorilla Glass 5Scratch resistant, 3D curved glass screen
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Display features120Hz, HDR10+, 1300 nits (peak), sunscreen 3.0, night light screen120Hz, HDR10+
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.2 GHz Kryo 585Single-core 3.05 GHz Cortex-X3
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CPU(second)Triple-core 2.42 GHz Kryo 585Triple-core 2.85 GHz Cortex-A715
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CPU(third)Quad-core 1.80 GHz Kryo 585Quad-core 1.8 GHz Cortex-A510
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ChipsetQualcomm SM8250-AC Snapdragon 870 5GMediaTek Dimensity 9200
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GPUAdreno 650Arm Immortalis-G715
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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, UFS 4.0
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OS
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OSAndroid 11, MIUI 12Android 13, Funtouch (global), Origin OS 3 (China)
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Main camera
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Camera typeTripleTriple
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Main camera(wide) , 48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm(wide) , 50 MP, f/1.8 , 1/1.49" , 1.0 µm, 10x digital zoom
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(ultrawide) , 8 MP, f/2.2 , 119˚(telephoto) , 12 MP, f/2.0 , 50 mm, 1/2.93" , 1.22 µm, 2x optical zoom
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(macro) , 5 MP, 50 mm, 1/5.0" , 1.12 µm(ultrawide) , 12 MP, 16 mm, 1/2.93" , 1.22 µm, 116˚ , f/2.0
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Primary camera resolution8000 x 6000 pixels8190 x 6120 pixels
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Primary camera video4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS4K@30/60fps, 1080p@30/60fps, gyro-EIS
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Primary camera optics-Zeiss optics
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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, 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, laser 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) , 32 MP, 1/2.8" , 0.8 µm, f/2.5 , 24 mm
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Selfie camera resolution5184 x 3880 pixels6528 x 4896 pixels
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Selfie camera featuresFace unlock, HDRFace unlock
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Selfie camera video1080p@30fps, 720p@120fps4K@30fps, 1080p@30fps
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Sound
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3.5mm jackNoNo
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LoudspeakerYes, with stereo speakersYes, with stereo speakers
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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, 802.11ax
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WLAN WiFi HotspotYes-
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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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InfraredYesYes
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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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NavICYesYes
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Features
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SensorsAccelerometer, color spectrum, compass, fingerprint, gyroscope, 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-PoLi-Po
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Battery capacity4520 mAh4810 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 (50% in 8 min)
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Reverse charging-Yes
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Talk time 4G-17.5 h
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Tests and performance
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Antutu673599 (v8)1250000 (v9)
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Geekbench(single-core)928 (v5.2)1426 (v5.2)
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Geekbench(multi-core)3260 (v5.2)4438 (v5.2)
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Cost
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Price470 USD500 USD