Xiaomi Redmi K40S vs ZTE Blade A31 Plus
Xiaomi Redmi K40S
ZTE Blade A31 Plus
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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, 2100
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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, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
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5G network5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA-
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HSDPA speed42.2 Mbps21.1 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE-ALTE, 151 Mbps download, 51 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-032021-10
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Status2022-032021-10
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Design
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BuildGlass front (Gorilla Glass 5), plastic backPlastic
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.2 mm159.2 mm
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Width76 mm77.5 mm
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Thickness7.7 mm9.6 mm
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Weight195 g200 g
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Splash resistantYes-
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ColorsBlack, Blue, Gray, GreenBlue, Gray
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Display
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Display typeAMOLEDIPS LCD
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Physical size6.67 inches6.0 inches
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Resolution1080 x 2400 pixels480 x 960 pixels
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Pixel density395 ppi179 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5-
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Display features120Hz, HDR10+, 1300 nits (peak)-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.2 GHz Kryo 585Quad-core 1.6 GHz Cortex-A55
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CPU(second)Triple-core 2.42 GHz Kryo 585quad-core 1.2 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 5GUnisoc SC9863A
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GPUAdreno 650IMG8322
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Memory RAM6, 8, 12 GB1 GB
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Internal storage128, 256 GB32 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-128 GB
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StorageUFS 3.1-
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OS
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OSAndroid 12, MIUI 13Android 11 Go Edition
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Main camera
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Camera typeTripleSingle
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Main camera(wide) , 48 MP, f/1.8 , 1/2" , 0.8 µm5 MP, f/1.8
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(ultrawide) , 8 MP, 119˚
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(macro) , 2 MP, f/2.4
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Interpolated resolution-8 MP
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Primary camera resolution8000 x 6000 pixels3264 x 2448 pixels
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Primary camera video4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS720p@30fps
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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 autofocusHDR
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera(wide) , 20 MP2 MP, f/2.8
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Selfie camera interpolated resolution-5 MP
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Selfie camera resolution-2560 x 1944 pixels
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Selfie camera featuresFace unlock, HDR-
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Selfie camera video1080p@30/120fps480p@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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RadioNoFM Radio
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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 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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USBType-C 2.0microUSB 2.0
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USB On-The-GoYes-
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Bluetoothv5.2v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYes-
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BDSYes-
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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
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity4500 mAh3000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQuick Charge 3+, 67W (100% in 38 min)-
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Tests and performance
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Antutu715000 (v9)101300 (v8)
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Geekbench(single-core)983 (v5.2)149 (v5.2)
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Geekbench(multi-core)3362 (v5.2)817 (v5.2)
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Cost
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Price290 USD100 USD
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