BLU J4
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100
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HSDPA speed21.1 Mbps
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HSUPA speed5.76 Mbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2019-10
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Status2019-10
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Design
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BuildPlastic
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SIMDual SIM (Nano-SIM, dual stand-by)
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Height151 mm
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Width72.3 mm
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Thickness10 mm
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Weight158 g
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ColorsBlack, Blue, Brown
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Display
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Display typeIPS LCD capacitive touchscreen
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Physical size5.5 inches
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Resolution720 x 1440 pixels
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Pixel density293 ppi
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Display colors16777216
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MultitouchYes
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A7
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GPUMali-400
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Memory RAM1 GB
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Internal storage32 GB
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Memory cardmicroSD, microSDHC, microSDXC
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Memory card max64 GB
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StorageeMMC 5.1
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OS
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OSAndroid 8.1 Oreo Go Edition
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Main camera
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Camera typeSingle
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Main camera8 MP
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Primary camera video720p@30fps
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Primary camera flashLED flash
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Selfie camera
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Selfie camera8 MP
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Selfie camera video720p@30fps
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Sound
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3.5mm jackYes
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LoudspeakerYes
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EarpieceYes
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Multimedia
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RadioFM Radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes
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WLAN WiFi DirectYes
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USBmicroUSB 2.0
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Bluetoothv4.1
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Bluetooth A2DPYes
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bluetooth LEYes
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GPSYes, with A-GPS
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Features
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SensorsAccelerometer
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Browser
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HTMLHTML5
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Battery
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Battery typeLi-Po
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Battery capacity2200 mAh
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Battery removableRemovable
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Cost
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Price75 USD