Xiaomi Redmi K40 vs vivo V23 5G
Xiaomi Redmi K40
vivo V23 5G
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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, 1700(AWS), 1900, 2100
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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, 8, 18, 19, 26, 38, 39, 40, 41
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5G network5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub65G band 1, 3, 38, 40, 41, 77, 78 SA/NSA; 1, 3, 5, 8, 7, 20, 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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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 announced2021-022021-01
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Status2021-032022-01
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Design
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BuildGlass, MetalGlass front (Schott Xensation Up), glass 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 mm157.2 mm
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Width76.4 mm72.4 mm
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Thickness7.8 mm7.4/7.6 mm
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Weight196 g179/181 g
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ColorsAurora, Black, WhiteBlack, Gold
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Display
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Display typeSuper AMOLEDAMOLED
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Physical size6.67 inches6.44 inches
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Resolution1080 x 2400 pixels1080 x 2400 pixels
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Pixel density395 ppi409 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 screen-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.2 GHz Kryo 585Dual-core 2.5 GHz Cortex-A78
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CPU(second)Triple-core 2.42 GHz Kryo 585Hexa-core 2.0 GHz Cortex-A55
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CPU(third)Quad-core 1.80 GHz Kryo 585
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ChipsetQualcomm SM8250-AC Snapdragon 870 5GMediaTek Dimensity 920 5G
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GPUAdreno 650Mali-G68 MC4
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Internal storage128, 256 GB128, 256 GB
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Memory RAM6, 8, 12 GB8, 12 GB
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Memory cardNoNo
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StorageUFS 3.1-
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OS
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OSAndroid 11, MIUI 12Android 12, Funtouch 12
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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) , 64 MP, f/1.9 , 26 mm
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(ultrawide) , 8 MP, f/2.2 , 119˚(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
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(macro) , 5 MP, 50 mm, 1/5.0" , 1.12 µm(macro) , 2 MP, f/2.4
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Primary camera resolution8000 x 6000 pixels-
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Primary camera video4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS4K@30fps, 1080p@30fps, gyro-EIS
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Primary camera flashLED flashdual-LED 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 autofocusHDR, Panorama
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Selfie camera
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Selfie camera typeSingleDual
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Selfie camera(wide) , 20 MP, 1/3.4" , 0.8 µm(wide) , 50 MP, f/2.0
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(ultrawide) , 8 MP, f/2.3 , 105˚
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Selfie camera resolution5184 x 3880 pixels-
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Selfie camera featuresFace unlock, HDRHDR
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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
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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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Bluetoothv5.1v5.2
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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 (market dependent)
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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, 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 mAh4200 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQuick Charge 3.0 (100% in 52 min)Yes, 44W (68% in 30 min)
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Tests and performance
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Antutu673599 (v8)500949 (v9)
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Geekbench(single-core)928 (v5.2)739 (v5.2)
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Geekbench(multi-core)3260 (v5.2)2842 (v5.2)
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Cost
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Price470 USD410 USD
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SAR value
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SAR(head)-1.08 W/kg
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SAR(body)-0.72 W/kg