Xiaomi Mi A3 vs Xiaomi Redmi K40 Pro
Xiaomi Mi A3
Xiaomi Redmi K40 Pro
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 900, 1700, 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300)LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
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5G network-5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub6
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HSDPA speed42 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE, Cat12, 603 Mbps download, 102 Mbps uploadLTE-A, 1174 Mbps download, 210 Mbps upload
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GPRSYesYes
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EDGEYesClass 8
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Availability
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Oficially announced2019-72021-02
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Status2019-72021-03
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Design
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BuildAluminium alloy, glassGlass, Metal
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height153.48 mm163.7 mm
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Width71.85 mm76.4 mm
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Thickness8.48 mm7.8 mm
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Weight173 g196 g
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Splash resistant-IP53
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Dust proof-IP53
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ColorsBlack, Blue, WhiteAurora, Black, White
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Display
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Display typeSuper AMOLED capacitive touchscreenSuper AMOLED
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Physical size6.09 inches6.67 inches
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Resolution720 x 1560 pixels1080 x 2400 pixels
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Pixel density282 ppi395 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, Corning Gorilla Glass 5Scratch resistant, 3D curved glass screen, Corning Gorilla Glass 5
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MultitouchYes-
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Display featuresHDR10, DC dimming120Hz, 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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CPUQuad-core 2.0 GHz Kryo 260Single-core 2.84 GHz Kryo 680
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CPU(second)quad-core 1.8 GHz Kryo 260Triple-core 2.42 GHz Kryo 680
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CPU(third)Quad-core 1.80 GHz Kryo 680
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ChipsetQualcomm SDM665 Snapdragon 665Qualcomm SM8350 Snapdragon 888
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GPUAdreno 610Adreno 660
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Memory RAM4 GB6, 8 GB
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Internal storage64, 128 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max256 GB-
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StorageUFS 2.1UFS 3.1
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OS
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OSAndroid 9.0 PieAndroid 11, MIUI 12
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Main camera
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Camera typeTripleTriple
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Main camera48 MP, f/1.79 , 1/2" , 0.8 µm64 MP, f/1.9 , 1/1.7" , 0.8 µm, (wide) , 26 mm
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8 MP, f/2.2 , 1.12 µm8 MP, f/2.2 , (ultrawide) , 119˚
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2 MP, f/2.4 , 1.75 µm5 MP, 1.12 µm, (macro) , 50 mm, 1/5.0"
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Primary camera resolution8000 x 6000 pixels9280 x 6920 pixels
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Primary camera video2160p@30fps, 1080p@30/60/120fps8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+
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Primary camera flashdual-LED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-modeAutofocus, 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 autofocus
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Selfie camera
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Selfie camera type-Single
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Selfie camera32 MP, f/2.0 , 0.8 µm20 MP, 0.8 µm, (wide) , 1/3.4"
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Selfie camera resolution6528 x 4896 pixels5184 x 3880 pixels
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Selfie camera features-Face unlock, HDR
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Selfie camera video1080p@30fps1080p@30fps, 720p@120fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes, with stereo speakers
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EarpieceYesYes
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Multimedia
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RadioFM RadioNo
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11acWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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Wi-Fi displayYes-
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WLAN WiFi Dual BandYesYes
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USBType-C 1.0 reversible connectorType-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.0v5.2
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Bluetooth A2DPYesYes
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bluetooth HIDYes-
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bluetooth LEYesYes
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Bluetooth EDRYes-
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Bluetooth AptXaptX HD-
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InfraredYesYes
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NFCYesYes
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GPSYes, with A-GPSYes, with dual-band A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BeidouYes-
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BDS-Yes
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QZSS-Yes
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NavIC-Yes
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Features
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SensorsAccelerometer, compass, gyroscope, fingerprint, light, proximity, in-display fingerprint sensorAccelerometer, barometer, 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 capacity4030 mAh4520 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQualcomm Quick Charge 4.0Quick Charge 3.0 (100% in 52 min)
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Cost
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Price280 USD580 USD
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Tests and performance
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Antutu-727466 (v8)
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Geekbench(single-core)-1132 (v5.2)
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Geekbench(multi-core)-3847 (v5.2)