Realme X7 vs Xiaomi Redmi K40
Realme X7
Xiaomi Redmi K40
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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, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42
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5G network5G band 1, 41, 77, 78, 79; SA/NSA5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub6
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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 speed3.1 Mbps download, 1.8 Mbps upload-
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LTE speedLTE-A (CA)LTE-A, 1174 Mbps download, 210 Mbps upload
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5G speed2.3 Gbps download-
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GPRSYesYes
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EDGEYesClass 8
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Availability
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Oficially announced2020-092021-02
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Status2020-092021-03
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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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Height160.9 mm163.7 mm
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Width74.4 mm76.4 mm
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Thickness8.1 mm7.8 mm
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Weight175 g196 g
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ColorsBlue, Rainbow, WhiteAurora, Black, White
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Display
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Display typeAMOLED capacitive touchscreenSuper AMOLED
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Physical size6.4 inches6.67 inches
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Resolution1080 x 2400 pixels1080 x 2400 pixels
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Pixel density411 ppi395 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, Corning Gorilla GlassScratch resistant, 3D curved glass screen, Corning Gorilla Glass 5
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Display features-120Hz, HDR10+, 1300 nits (peak), sunscreen 3.0, night light screen
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Hardware
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CPU-Octa-core
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CPUOcta-core 2.4 GHzSingle-core 3.2 GHz Kryo 585
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CPU(second)Triple-core 2.42 GHz Kryo 585
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CPU(third)Quad-core 1.80 GHz Kryo 585
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ChipsetMediaTek Dimensity 800U 5GQualcomm SM8250-AC Snapdragon 870 5G
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GPUMali-G57Adreno 650
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Memory RAM6, 8 GB6, 8, 12 GB
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Internal storage128 GB128, 256 GB
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Memory cardNoNo
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StorageUFS 2.1UFS 3.1
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OS
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OSRealme UI (Android 10)Android 11, MIUI 12
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Main camera
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Camera typeQuadTriple
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Main camera64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm, (wide)
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8 MP, f/2.3 , 1/4.0" , 1.12 µm8 MP, f/2.2 , (ultrawide) , 119˚
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2 MP, f/2.45 MP, (macro) , 50 mm, 1/5.0" , 1.12 µm
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2 MP, f/2.4
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Primary camera resolution9280 x 6920 pixels8000 x 6000 pixels
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Primary camera video4K@30fps, 1080p@30/60/120fps, gyro-EIS4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocusAutofocus, 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/2.5 , 24 mm, 1/2.8" , 0.8 µm20 MP, 1/3.4" , 0.8 µm, (wide)
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Selfie camera resolution5184 x 3456 pixels5184 x 3880 pixels
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Selfie camera features-Face unlock, HDR
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Selfie camera video1080p@30/120fps1080p@30fps, 720p@120fps
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes, 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 HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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USBType-C reversible connectorType-C 2.0
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USB On-The-Go-Yes
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Bluetoothv5.1v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Infrared-Yes
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NFC-Yes
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GPSYes, with dual-band A-GPSYes, with dual-band 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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NavIC-Yes
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Features
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SensorsAccelerometer, 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 capacity4300 mAh4520 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingSuperDart Charge (100% in 33 min)Quick Charge 3.0 (100% in 52 min)
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Cost
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Price260 USD470 USD
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Tests and performance
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Antutu-673599 (v8)
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Geekbench(single-core)-928 (v5.2)
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Geekbench(multi-core)-3260 (v5.2)