Biuone A20

Biuone A20

The Biuone A20 is a Chinese dual channel dash cam released in September 2020. Unlike many of these generic Chinese dash cams that are made by obscure companies, Biuone is actually trademarked to an individual, Zhang Jingqiu. This appears to be a small operation and at the time of this review, the A20 is the only dash cam they sell.

Unfortunately Biuone does not provide specifics on the processor and CMOS sensors used for the A20. Given the low price point of this dual camera, we suspect entry level hardware is being used.

Video Quality

The front camera records 1080p video at 30fps with an average bitrate of 11 Mbps. Video quality for the front camera during the day is average and lacks details as can be seen by this screenshot below. The video also has a choppy nature to it.

Biuone A20 Day Snapshot
Biuone A20 Day Snapshot

At night, video quality is significantly worse. Video is very grainy and details are washed out.

Biuone A20 Night Snapshot
Biuone A20 Night Snapshot

The rear camera records 720p video at 30fps with an average bitrate of 6 Mbps. The quality of this camera manages to be significantly worse than the front camera and the resolution looks to be worse than 720p.

Biuone A20 Rear Snapshot 1


The Biuone has a 3″ screen, g-sensor but does not have GPS. The camera does not come with WiFi or supporting smartphone apps. The A20 provides non-buffered parking mode if you hardwire the dash cam to your vehicle (optional hardwire kit required).

The suction mount provided allows the dash cam to swivel 360° to record interactions at your side windows (i.e. police traffic stop). The A20 is a medium sized camera at 90 x 50 x 13mm and is not the most discreet camera. The camera is lightweight and does not have the best build quality. Unfortunately the A20 does not come with audio error notifications. It does provide error notifications on the screen but these can easily be missed by the driver.


Biuone does not have a website and provides very little support for this camera. There do not appear to be any firmware updates since the camera has launched. Biuone provides a 12 month warranty, which is standard for most dash cams.

Known Problems

Micro SD Card Springs Out

Numerous owners have indicated that the micro SD card does not remain in the slot. The card flies out or the spring is damaged and it does not stay in the camera.

Biuone A20 micro SD Card

Rear Camera Not Functioning

Another complaint that comes up numerous times is the rear camera does not function. Some owners have reported this out of the box, others after using it for a few months.

Sample Videos

Should I Purchase

The Biuone A20 might look like a bargain for a dual-channel dash camera with 32GB micro SD card for only $50. However the video quality is not impressive especially at night and for the rear camera at any time. Build quality is not the best and reliability is hit or miss. Throw in limited support and this is a below average dash cam.


Detailed Specifications

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Camera Type Dual Channel
Form Factor Hanging - Rectangular
Country China
Processor Unknown
CMOS Front Unknown
CMOS Rear Unknown
Channels 2
Screen 3"
Touchscreen No
G-Sensor Yes
Wi-Fi No
Parking Mode Non-Buffered
Lock Files Auto or Button
Max Resolution Front 1920×1080p
Front Frames Per Second 30
Max Bitrate Front (Mbps) 11
Max Resolution Rear 1280×720p
Rear Frames Per Second 30
Max Bitrate Rear (Mbps) 6
Video Format MOV
Compression H.264
Diagonal Viewing Angle Front 170°
Diagonal Viewing Angle Rear 140°
SD Card Type MicroSD
Max Size (Spec) 64GB
Max Size (User) 64GB
Size Front (mm) 90 x 50 x 13
Size Rear (mm) Unknown
Mount Suction
Power Supply 5V
Operating Temp -20°C to 60°C
Battery 200mAh
Error Notification Screen
Swivel (To Record Side Windows) Yes
Cloud Connectivity No
Release Date Sep 2020
Warranty 12 months
Unique Features Waterproof exterior rear camera
Advantages Low price
Includes 32GB micro SD card
Disadvantages Low video quality
Battery instead of capacitor
Limited support / no firmware updates
Build quality and reliability is below average
Final Word Video quality does not impress. Build quality is not the best and reliability is hit or miss. Below average dash cam.

Published: June 12, 2022

Biuone A20 - DashCamTalk
Biuone A20

The Biuone A20 video quality and build quality do not impress. Reliability is hit or miss making this a below average dash cam.

Product SKU: Biuone A20

Product Brand: Biuone

Product Currency: USD

Product Price: 50

Price Valid Until: 2023-01-01

Product In-Stock: SoldOut

Editor's Rating: