BlueSkySea B2K QHD Dashcam review

Jeremy Wong

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Dash Cam
Viofo A119, Viofo A119S, Xiaomi Mijia, 360 J511C, etc
Author's Note: The full review can be found here. My review blog for my other reviews: jwtechreviews.com

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Thanks to BlueSkySea for providing the B2K QHD dashcam for review.


Technical Specs:
• Processor: Novatek NT96670
• Sensor: Sony IMX335 Exmor R Starvis
• Lens: F1.8 Aperture135° Wide Viewing Angle
• Resolution: 3840×2160 (not true 4K), 2560×1440 30fps, 1920×1080 30fps, 1280×720 30fps
• Support up to 256GB microSD card
• Built-in WiFi
• Built-in supercapacitor
• 1.5″ Screen
• Buffered parking mode (requires a hardwire kit)


The box
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Open box
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Content
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• B2K
• Suction mount
• Tape mount
• Short mini USB cable
• Mini USB car charger
• Electrostatic film
• User manual
 
Last edited:
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Jeremy Wong

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Dash Cam
Viofo A119, Viofo A119S, Xiaomi Mijia, 360 J511C, etc
B2K
20201127_204714_wm.jpg 20201127_204805_wm.jpg 20201127_204819_wm.jpg 20201127_204827_wm.jpg 20201127_204837_wm.jpg 20201127_204848_wm.jpg


Tape mount
20201127_204905_wm.jpg 20201127_204915_wm.jpg 20201127_204943_wm.jpg
 
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Jeremy Wong

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Dash Cam
Viofo A119, Viofo A119S, Xiaomi Mijia, 360 J511C, etc
Suction mount
20201127_205009_wm.jpg 20201127_205017_wm.jpg 20201127_205046_wm.jpg


Short mini USB cable
20201127_204437_wm.jpg 20201127_204449_wm.jpg


Mini USB car charger
20201127_204529_wm.jpg 20201127_204538_wm.jpg 20201127_204552_wm.jpg


Electrostatic film
20201127_204644_wm.jpg
 
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Jeremy Wong

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Dash Cam
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User manual
20201127_205316_wm.jpg 20201127_205329_wm.jpg 20201127_205339_wm.jpg 20201127_205347_wm.jpg 20201127_205355_wm.jpg 20201127_205404_wm.jpg 20201127_205415_wm.jpg 20201127_205427_wm.jpg 20201127_205436_wm.jpg


Initial firmware out of the box
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Jeremy Wong

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Test setup
20201127_205824_wm.jpg 20201128_112853_wm.jpg
I will be using a 128GB Netac Pro microSD 350V card for the recordings.


KaKaOK app
Screenshot_20201202-082753_KaKa_wm.jpg Screenshot_20201202-082759_KaKa_wm.jpg Screenshot_20201202-082810_KaKa_wm.jpg Screenshot_20201202-082828_KaKa_wm.jpg Screenshot_20201202-083042_KaKa_wm.jpg Screenshot_20201202-083123_KaKa_wm.jpg Screenshot_20201202-083142_KaKa_wm.jpg Screenshot_20201202-083200_KaKa_wm.jpg
 
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Jeremy Wong

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Dash Cam
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Videos
Below is recorded using firmware v20201009 in H.265 2560×1440 30fps with an overall bitrate of 16.5 Mb/s with WDR on.






Final thoughts
A nice small cube design with crisp clear videos. From the price of USD69.99 (MYR285+-) can be considered a good budget 2K dashcam.

The KakaOK app is very straight forward to use. Video streaming without any lag.

The 4K resolution is considered to non-true 4K resolution as the B2K uses a 5MP sensor, not an 8MP sensor which can record in true 4K resolution.

Regarding the buffered parking mode, I didn’t get to test it out as I didn’t have a mini USB hardwire kit for the testing.
 

estore009

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Did you test its 4K resolution also?
 

Nigel

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Gitup F1+G3ꞈꞈꞈꞈꞈ Viofo A139ꞈꞈꞈꞈꞈ Blueskysea B4K+B2K
Did you test its 4K resolution also?
It gives twice the bitrate in UHD, better for movies, not so good for record time.

Regarding the buffered parking mode, I didn’t get to test it out as I didn’t have a mini USB hardwire kit for the testing.
It works, triggered by g-sensor and gives a 30 second recording in the EMR folder with 10 seconds pre-trigger. Same happens if the g-sensor is activated while driving, with the buffered emergency recording being completely separate from the normal recording.

Below is recorded using firmware v20201009 in H.265 2560×1440 30fps with an overall bitrate of 16.5 Mb/s with WDR on.
Not the best of conditions, especially in the night footage, but a good test!

It has excellent image quality for a budget camera. Apart from the bitrate on the QHD recordings which is a little low for 2K, image quality is excellent for any 2K camera, it has a nice lens. The low price is due to missing features like GPS rather than image quality. Certainly a big upgrade on image quality from the B1W, especially at night when there is far less motion blur on the B2K.
 
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