Cubot J20 vs Xiaomi Redmi K40
Cubot J20
Xiaomi Redmi K40
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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 900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 3, 5, 7, 8, 19, 20, 40LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 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 speed21.1 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speed-LTE-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 announced2023-032021-02
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Status2023-032021-03
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Design
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BuildPlasticGlass, Metal
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height138 mm163.7 mm
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Width65 mm76.4 mm
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Thickness10.8 mm7.8 mm
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Weight143 g196 g
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ColorsBlack, GreenAurora, Black, White
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Display
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Display typeIPS TFTSuper AMOLED
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Physical size4 inches6.67 inches
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Resolution480 x 584 pixels1080 x 2400 pixels
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Pixel density245 ppi395 ppi
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Display colors1677721616777216
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Protection-Scratch 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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CPUQuad-core 1.3 GHz Cortex-A53Single-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 MT6739WAQualcomm SM8250-AC Snapdragon 870 5G
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GPUPowerVR GE8100Adreno 650
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Internal storage16 GB128, 256 GB
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Memory RAM2 GB6, 8, 12 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max128 GB-
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Storage-UFS 3.1
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OS
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OSAndroid 12 Go EditionAndroid 11, MIUI 12
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Main camera
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Camera typeSingleTriple
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Main camera5 MP48 MP, (wide) , f/1.8 , 26 mm, 1/2" , 0.8 µm
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(ultrawide) , 8 MP, f/2.2 , 119˚
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(macro) , 5 MP, 50 mm, 1/5.0" , 1.12 µm
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Primary camera resolution2560 x 1920 pixels8000 x 6000 pixels
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Primary camera video720p@30fps4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, geotagging, HDR, touch focus, face detection, self-timerAutofocus, 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 typeSingleSingle
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Selfie camera2 MP20 MP, (wide) , 1/3.4" , 0.8 µm
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Selfie camera resolution1920 x 1080 pixels5184 x 3880 pixels
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Selfie camera featuresFace unlockFace unlock, HDR
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Selfie camera video480p@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 802.11b, 802.11g, 802.11nWi-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 Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 2.0
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USB On-The-Go-Yes
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Bluetoothv4.2v5.1
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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Infrared-Yes
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NFCYesYes
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GPSYes, with A-GPSYes, with dual-band A-GPS
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GLONASS-Yes
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GALILEO-Yes
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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, lightAccelerometer, 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 capacity2350 mAh4520 mAh
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Battery removableRemovableNon-removable
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Fast battery charging-Quick Charge 3.0 (100% in 52 min)
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Tests and performance
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Antutu46844 (v8)673599 (v8)
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Geekbench(single-core)157 (v5.2)928 (v5.2)
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Geekbench(multi-core)380 (v5.2)3260 (v5.2)
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Cost
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Price65 USD470 USD
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