BlueSkySea B2K QHD Dashcam review

[Jeremy Wong]

Author's Note: The full review can be found here. My review blog for my other reviews: jwtechreviews.com



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




Open box




Content

• B2K
• Suction mount
• Tape mount
• Short mini USB cable
• Mini USB car charger
• Electrostatic film
• User manual

 

[Jeremy Wong]

B2K



Tape mount

 

[Jeremy Wong]

Suction mount



Short mini USB cable



Mini USB car charger



Electrostatic film

 

[Jeremy Wong]

User manual



Initial firmware out of the box

 

[Jeremy Wong]

Test setup

I will be using a 128GB Netac Pro microSD 350V card for the recordings.


KaKaOK app

 

[Jeremy Wong]

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]

Did you test its 4K resolution also?

 

[Nigel]

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.

 

[Falsificator]

Quite an interesting and compact recorder.
On such a sensor, it would be desirable to see the activated HDR mode.
I looked at the firmware code, there is room for development...

FW96670A.bin

drive.google.com