BLU J4 vs Xiaomi Mix 4
BLU J4
Xiaomi Mix 4
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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, 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
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4G network-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, 5, 8, 28, 41, 77, 78, 79 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 announced2019-102021-08
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Status2019-102021-08
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Design
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BuildPlasticGlass front (Gorilla Glass Victus), ceramic back, aluminum frame
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height151 mm162.6 mm
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Width72.3 mm75.4 mm
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Thickness10 mm8 mm
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Weight158 g225 g
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Splash resistant-IP53
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Dust proof-IP53
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ColorsBlack, Blue, BrownBlack, Gray, White
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Display
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Display typeIPS LCD capacitive touchscreenAMOLED
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Physical size5.5 inches6.67 inches
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Resolution720 x 1440 pixels1080 x 2400 pixels
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Pixel density293 ppi395 ppi
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Display colors167772161073741824
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Protection-Scratch resistant, 3D curved glass screen, Corning Gorilla Glass Victus
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MultitouchYes-
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Display features-120Hz, HDR10+, Dolby Vision, 800 nits (HBM), Wide color gamut, True-tone
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A7Single-core 2.99 GHz Kryo 680
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CPU(second)Triple-core 2.42 GHz Kryo 680
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CPU(third)Quad-core 1.80 GHz Kryo 680
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Chipset-Qualcomm SM8350 Snapdragon 888+ 5G
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GPUMali-400Adreno 660
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Memory RAM1 GB8, 12 GB
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Internal storage32 GB128, 256, 512 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max64 GB-
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StorageeMMC 5.1UFS 3.1
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OS
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OSAndroid 8.1 Oreo Go EditionAndroid 11, MIUI 12.5
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Main camera
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Camera typeSingleTriple
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Main camera8 MP108 MP, (wide) , f/1.9 , 24 mm, 1/1.33" , 0.8 µm
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(periscope telephoto) , 8 MP, f/4.1 , 120 mm, 5x optical zoom
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123˚ , (ultrawide) , 13 MP, f/2.2 , 12 mm, 1/3.06" , 1.12 µm
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Primary camera video720p@30fps8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+
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Primary camera flashLED flashdual-LED flash
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Camera features-Autofocus, 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 autofocus, laser autofocus, AI 2.0, night mode 2.0, stagger HDR
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Selfie camera
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Selfie camera type-Single
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Selfie camera8 MP20 MP, (wide) , 27 mm, 1/3.4" , 0.8 µm
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Selfie camera resolution-5184 x 3880 pixels
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Selfie camera features-Face unlock, HDR
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Selfie camera video720p@30fps1080p@30fps
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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 DirectYesYes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 2.0
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Bluetoothv4.1v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD
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Infrared-Yes
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NFC-Yes
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GPSYes, with A-GPSYes, with dual-band A-GPS
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GLONASS-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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SensorsAccelerometerAccelerometer, 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 capacity2200 mAh4500 mAh
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Battery removableRemovableNon-removable
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Fast battery charging-Quick Charge 4 (100% in 15 min)
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Fast wireless charging-Yes (100% in 28 min)
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Cost
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Price75 USD800 USD
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Tests and performance
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Antutu-792743 (v9)
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Geekbench(single-core)-863 (v5.4)
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Geekbench(multi-core)-3181 (v5.4)
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