B4K UHD Dashcam

Item No.: B4K
B4K Ultra HD 4K Wi-Fi Smart Dashcam with GPS logger, Buffered Parking Mode, G-Sensor, Motion Detection, WDR, Loop Recording, No battery
  • Processor: Novatek 966670
  • Image Sensor: IMX415 8MP Sensor for front Cam; IMX307 2MP Sensor for rear cam;
  • Lens: F 1.6
  • Video resolution: 4K
  • Video codec: H.265
  • Video format: TS
  • LCD display: 3.16 inches
  • Wi-Fi: Yes
  • GPS logger: Yes
  • Working temperature: -20°C - 70°C; -4°F - 158°F
  • Measurements: 3.6*1.5*0.9 inches
  • Input: 5V 1.5A
  • Description Optional accessories
    BlueSkySea B4K Ultra HD 4K Wi-Fi Dashcam with GPS, Buffered Parking Mode, G-Sensor, Motion Detection, WDR, Loop Recording, 1080p Rear camera optional


    Main Features:

    Ultra HD, Real 4K Car Dash Camera】The Blueskysea B4K is a premium quality, full 4K resolution car dash camera that has been designed for drivers. It utilizes the latest generation Sony 8MP IMX415 low light capable image sensor to capture highly detailed and clear images of license plates and road signs at Ultra HD resolution (4K-3840 x 2160) at 30 frames per second. A 120° ultra-wide-angle A+ quality lens captures every important detail of what happens in front of the car. The WDR function records a Wider Dynamic Range of light levels so that details normally hidden in the shadows are recorded.

    Buffered Parking Mode】Compared to other driving recorders, the Blueskysea B4K records not only accident results but also the lead up to the impact. When an event is detected, a 30-second video (10 seconds before and 20 seconds after the impact) will be saved and protected from overwriting.
    No built-in battery inside the dashcam unit. And an optional hardwire kit, which can switch the camera into parking mode when it detects that the car is parked, is available separately.

    3.16'' IPS Screen】The Blueskysea B4K has an integrated 3.16'' ultra-wide screen IPS monitor which clearly displays dual front and rear video views (rear camera is optional).

    Built-in GPS】With a built-in GPS receiver, the car camera logs the current speed and GPS location with an optional video overlay and will automatically synchronize the clock with GPS satellite time. What’s more, the route recorded by GPS is displayed on Google maps during video playback.

    Smart APP Control & Built-in WiFi】The Blueskysea B4K has built-in Wi-Fi with an easy connection to your smartphone app. You can synchronize the files on the car camera to your phone through the "Ucam" app. Video files can be downloaded to a smartphone and shared with social media.

    Loop Recording, G-Sensor protection & 256GB Max. Storage】Seamless loop recording overwrites the oldest footage with the newest upon reaching card capacity. A configurable sensitivity G-sensor auto-detects sudden shake/impact events and protects the event footage to prevent overwrite. The car camera supports a maximum microSD card size of 256GB, thus ensuring almost 24 hours of recording time before overwriting the oldest video footage. In addition to the above, this dashcam has many more basic functions such as time-lapse recording, audio recording, and time+date+speed video watermarks, thus making it an excellent choice for your driving recorder.

    Package Included:

    1 x B4K Dashcam
    1 x Car Charger
    1 x GPS Adhesive Mount
    1 x User Manual

    Optional accessories for B4K Dashcam:

    1 x 3-wire Hardwire kit (compatible with B1W dash cam)

    1 x CPL (reduce the windshield reflection and glare )

    1 x 1080p Rear Dashcam (Tube Version)

    1 x 1080p Rear Dashcam (Newer IMX307 Sensor Tube Version)


    Q: Why B4K dam cam use TS not MP4 file format?

    A: Nomally, it is the most important to save the last file if an event happens.

    the MP4 file will have the problem to save the last file if the cars cut the electrical power in a bad accident or other event, but TS file can avoid this problem 100%.

    What' s more, in order to watch the TS File video, please download the KMPlayer Compatible with Mac or KM player Compatible with Window.

    If you share the video with your friends, then your friends could use a player to playback this TS. footage (like: KM PLAYER , VLC PLAYER, POT player).

    Q: What can we do when the B4K dash cam footage cannot be played back on the computer?

    A: B4K dash cam uses H.265 (HEVC) codec format, if it can not be played back on your computer, please download the HEVC extension, and restart your computer, then the problem can be resolved.

    3-wire-hardwire kit For Blueskysea B4K Dash Cam

    Total Cable Lenth: 4 Meters/12 Foot
    Input Wires: POWER / GROUND / ACC
    Input Voltage Typical: DC 12/24V
    Input Fuse Recommended: 2A 5X20 Glass Tube Fuse
    Output Connector: Micro USB Plug
    Output Voltage Typical: DC 5V
    Output Current Typical: 1A
    Output Current MAX: 2A
    Output Capacity Typical: 5W
    Output Capacity MAX: 10W
    Working Temperature:-20 to 60℃
    Output Voltage Specified:
    1. No Load 5.4V, 0.5A Load 5.1V
    2. 1A Load 4.8V, 2A Load 4.2V

    Package Including:
    1x 3-wire-hardwire Kit (2-Switches version)

    CPL Filter Circular Polarizing Lens Cover For Blueskysea B4K Dash Cam

    The CPL (Circular Polarizing Lens) can be used to reduce reflections and glare from the window glass and road surfaces that can otherwise damage image quality, this works in the same way as polarized sunglasses.
    With our exclusive designed CPL filter, it could further reduce the reflections from the windshield, getting more saturated and beautiful video.

    Weight: 10g

    Package included:
    1x CPL for Blueskysea B4K Dash Cam
    1x Cleaning Paper


    FHD 1080P 130° Wide View Rear Camera for B4K Dashcam

    Key specifications:
    Video resolution: 1080p
    Lens angle: 130 degree
    Camera size: 60*28mm
    Camera Footprint size: 26*22mm
    Camera cable length: 6 meters

    360° degree rotatable camera body, ideal for all different angle back windshield!

    With a 130 degrees field of the rear view, you will never miss anything if a rear-end event.

    With plugging the rear camera, you can see the images of the front and rear cameras on the screen at the same time, including three modes: large front and small rear, small front and large rear, front, and rear split screen.

    Rear camera installation

    Suggest stick the rear camera on the back window which is easier to route the cable along with the ceiling.

    Package included:
    1x Rear Camera for Blueskysea B4K Dash Cam


    Newer version Rear Cam for B4K with Sony IMX307 Sensor



    Jul 26, 2022
    Pretty expensive, but great quality. Bought two as gifts, and they were easy to install.
    Liam C.
    Jul 26, 2022
    I have nothing but good things to say at both the combo of a true 4k sensor, small package, easy wiring, and a price literally $100s less than the competition as well as the customer/technical support experience with the owner of the store. I accidentally purchased a hard-wire kit for a different camera model that didn't work with this dashcam for parking mode, and not only did the store owner help me troubleshoot the problem, but he also ended up sending me the proper hard wire kit free as charge. It was seriously a hugely better experience than 99.99% of the other sellers I've dealt with on Amazon. What's great: -Good quality 4k resolution day-time video for a $100 camera and importantly good enough to zoom in and see license plates from further than a 1080p model -Easy mounting/install -Super unobtrusive size/shape -About 5-10 times cheaper than your insurance deductible -- cheap enough to buy for any car you own without breaking the bank -has survived many 100+ degree days in the Texas sun without the mounting adhesive failing or the camera having any issues (although it does indeed get hot to the touch, everything has worked OK for me) What's less great: -Night video isn't perfect, but neither is the $500-$800 camera options out there I was cross shopping -With the tint on my rear hatch window, it is difficult to see pretty much anything but headlights/shapes at night (using older 1080p rear camera). This is also my own fault to a large extent -I haven't been able to get the GPS to work, but I also haven't really tried to fix it -relatively clunky button-based menu navigation, but you can also access files from your phone so really doesn't bug me