Complete BLU J4 Specs

Main Camera
Selfie Cam
Our Score: 96%
Key Specs
Release dateSep 30, 2019

Camera Details
Camera Resolution8-megapixel
Camera flashLED
Camera Optics7P
Camera Options
  • AI Scene Detection
  • HDR
  • Nightscape
  • Panorama
  • Portrait
  • Pro Mode
  • RAW Image
  • UltraShot
Camera Features
  • Multi Autofocus (PDAF + LAF + CAF)
  • Optical/Electronic image stabilization (OIS + EIS)
  • Sony IMX586 sensor (main lens)
Camera ApertureF/1.6 (for main cam, f/2.4 for telephoto cam, f/2.2 for wide-angle cam)
Optical Zoom3x
Image FormatsJPEG, PNG, BMP, GIF
Photo Formats
  • JPEG
  • PNG
Camera pixel size1.6 microns (4-in-1 technology, 0.8-micron standard size -- 1-micron for telephoto lens)
Camera angle117 ° (wide-angle lens)
Camcorder (720p, at 30fps)
Video recorder featuresTime-Lapse, Video Editor
Max Video Resolution3840 x 2160 px
Video frames per second960 (for 720p slow-motion, 60/30 for standard 4K)
Video formatsMP4
Selfie Cam Resolution8-megapixel
Pixel size1
Selfie OptionsFace Retouching, HDR
Selfie FeaturesSony IMX471 sensor
Selfie flashScreen Flash
Max front-cam Video Resolution1920 x 1080
Front-cam frames per second30
Display size5.5 inches
Display dots per inch268 DPI
Display TypeAMOLED
Display refresh rate90 Hz
Display aspect ratio18:9
Display Resolution1440 x 720 px
Display's superficy12.1 square inches
Display's superficy (metric)307.34 square mm
Display finish3D Corning Gorilla Glass
Display total pixels1036800
Display featuresVideo Enhancer, Reading mode, Night mode, HDR10+
Processing Power
Operating SystemAndroid 8.1 Oreo (Go Edition)
ProcessorQualcomm Snapdragon 855 Plus (7nm with Qualcomm AI Engine)
CPU Cores4
Processor Speed1.3GHz
Graphic Processor (GPU)Mali 400
Physical Features
Weight (grams)158g
Thickness (metric)10 mm
Width (metric)72.3 mm
Height (metric)151 mm
Grams per cubic cm0.14 g/cu cm
Headset JackType-C
Available colors
  • Black
  • Brown
  • Blue
Included Accessories
  • Silicone case
  • Sticker
Ambient light detector
Base technologyGSM (850/900/1800/1900MHz)
3G Networks3G (850/900/1900/2100MHz)
4G NetworksFDD-LTE (B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/29/32/66), TDD-LTE (B34/38/39/40/41), 4x4 MIMO, LTE Cat 18/13
Maximum data rate1200Mbps
Maximum uplink data rate150Mbps
SIM card typeNano SIM (Dual Standby)
Bluetooth Technology4.0
USB classMicro USB v2.0
Mobile hotspot
Storage Memory
Memory ExpansionMicroSD
Expansion LimitUp to 64GB
Battery Life
Battery typeNon-removable
Battery Power2200mAh
mAh per gram14 mAh/g
mAh per mm thick220 mAh/mm of thickness
mAh per display square in.182mAh/sqrin.
Battery charging time30 hours (for 68 percent of battery power)
Charging systemWarp Charge 30T Fast Charging (5V/6A)
Music / Multimedia
Audio file formatsMP3, AAC, AAC+, WMA, AMR-NB, AMR-WB, WAV, FLAC, APE, OGG, MID, M4A, IMY, AC3, EAC3, EAC3-JOC, AC4
Music featuresDolby Atmos
General Specs
Phone lockFace Unlock
Manufacture product IDJ170EQ
Other features
SensorsSensor Core, Accelerometer, Gyroscope, Proximity, Laser, Haptic vibration
Video Formats3GP, AVI, FLV, H.265 (HEVC), MKV, MOV, MP4, TS, WEBM, WMV
Stereo SpeakersYes, 2
Special keysAlert Slider
Included softwareRAM Boost
UPC code848958038320 (Black), 848958038337 (Blue), 848958038344 (Brown)
Location servicesA-GPS, Beidou, GLONASS, GPS (L1+L5 Dual Band), Galileo (E1+E5a Dual Band)
Noise cancellation system
Fingerprint detector (in-display)
FinishLeather pattern design on case


Also known as: BLU J170EQ.

General BLU J4 Information

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* Spec accuracy is not guaranteed. Please do a confirmation of the key specs before making a final choice. Cell phone manufacturers sometimes omit certain functions, making it difficult for us to guess whether or not a specific cell phone has a specific function. If you find an error in this spec sheet, please let us know as soon as possible.

* Prices shown are only indicative. They were recently fetched by our system and may have changed meanwhile.


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