70mai A800

70mai A800

The 70mai A800 is the most recent release (July 2020) from the Chinese manufacturer 70mai. This is 70mai’s first 4K camera and is gaining popularity due to its reasonable price and video quality. The camera is also known as the MiDrive D09.

NOTE: As of February 2021, the A800 has been discontinued and replaced with the A800S.

The A800 uses a Huawei HiSilicon Hi3556 V200 processor. The front camera uses a Sony STARVIS IMX415 CMOS sensor while the rear camera uses a Galaxycore GC2053 CMOS sensor. The hardware and specs are very good quality.

Video Quality

The front camera records 2160p (4K) video at 30fps with an average bitrate of 25 Mbps. Video quality for the front camera during the day and night is good. During the day very few cameras are better than the A800 currently which is impressive given the price tag.

The rear camera records 1080p video at 30fps with an average bitrate of 8 Mbps. When compared to the excellent front camera, the rear camera does not perform as well. The 1080p has good video quality during the day and average at night. While the rear camera is optional, we suggest purchasing it since the incremental cost for the dual camera version is only $20 more.


The 70mai A800 has a large 3″ screen, g-sensor and has built in GPS. The camera comes with WiFi and supporting apps for Android and iOS. Unlike many dash cams with poorly designed apps, the 70mai app is pretty good. The A800 has Advanced Driver Assistance Systems (ADAS) built into the camera. Most owners find this feature annoying and typically turn it off.

While the A800 is bigger than other 70mai cameras at 89 x 60 x 36mm, the wedge shaped form factor allows for discreet mounting. The camera comes with audio, screen and LED error notifications. The build quality is good and initial reliability appears to be good as well.

The camera can be mounted directly to the windshield or on a provided electrostatic sticker. The electrostatic sticker allows you to remove the camera from the windshield without leaving any residue. Sticking directly to the windshield without the electrostatic sticker will provide a firmer mount. The camera cannot swivel to record interactions at the driver or passenger windows.

Their are a couple of negatives to be aware of on the 70mai A800. While parking mode can be enabled, the only option is non-buffered which is not ideal. Also note that you will need to use the optional 70mai hardwire cable for this to work.

The other negative, as can be seen in the pictures below, is that the camera uses a 500mAh battery instead of a capacitor which is not ideal in hot climates. The battery appears to use a connector so if you do find an equivalent replacement, you will not need to solder the battery.

70mai A800 Battery
700mai 800 Internal Battery
70mai A800 Battery
70mai 800 Internal Battery

Also note that the A800, like most other 4K cameras, runs hot. We haven’t heard of overheating problems but it is something to be aware of.


70mai support outside of China is not the greatest. However they do create firmware updates for their cameras to fix bugs and enable new capabilities which is a positive.

Known Problems

The camera has been recently released and there haven’t been any widespread problems. Note that a few owners have indicated part of the video is blurry or soft which is typical for lower quality lens or a misfocused lens from the factory. Check for any blurriness in your videos after purchasing.

Internal Photos

Internal photos of the camera can be viewed in this PDF.

Sample Videos

70mai A800 Front – Day
70mai A800 Rear – Day
70mai A800 Night – Front
70mai A800 Night – Rear

Should I Purchase?

If you are looking for the best bang for your buck 4K camera on the market today, the 70mai A800 should be on your shortlist. In the $100 price range, there are few cameras that will have better video quality than the A800. Build quality is good but it is a bit early to determine long term reliability.

Be aware of the 2 drawbacks to consider. The A800 also uses a lithium battery instead of a super capacitor and the non-buffered parking mode is not the best. Overall a great value given the excellent video quality at this price point.

See what other owners say about the 70mai A800 on our forum.

Where to purchase for lowest price

The 70mai A800 has been discontinued and replaced with the A800S.



Firmware Update Instructions

There are 2 methods to update the firmware: via the app (follow the instructions in the app) or manually (follow the instructions below).

Note that there are no hardware differences between the International (English), Chinese and Russian versions of this camera. Any language firmware can be flashed to the camera.

Updating Firmware Manually Steps

  1. Format the memory card in the camera (32GB cards or smaller are best)
  2. Turn off the camera by long pressing the button on the side. Remove the memory card.
  3. Connect the camera to the charger without a memory card. Turn off.
  4. Unzip the firmware archive file and copy the contents to the root of the memory card
  5. Insert the memory card with the firmware into the camera, press the rightmost button and the power button. Hold these 2 buttons until the arrow appears on the inscription in English. Now you can release.
  6. The firmware process has started.
  7. After flashing the firmware, a green check mark should appear and the camera will turn off.
  8. The firmware update is complete. Turn on the camera with the power button.
  9. The camera should boot up normally

Latest Firmware

Previous Firmware

User Manual

The English User Manual can be downloaded here.


Detailed Specifications

Read Review
Camera Type Dual Channel
Form Factor Wedge
Country China
Processor Huawei HiSilicon Hi3556 V200
CMOS Rear Galaxycore GC2053
Channels 2
Screen 3"
G-Sensor Yes
Wi-Fi Yes
Parking Mode Non-Buffered
Lock Files Auto or Button
Max Resolution Front 3840×2160p (4K)
Front Frames Per Second 30
Max Bitrate Front (Mbps) 25
Max Resolution Rear 1920×1080p
Rear Frames Per Second 30
Max Bitrate Rear (Mbps) 8
Video Format MP4
Compression H.264 or H.265
Diagonal Viewing Angle Front 140°
Diagonal Viewing Angle Rear 130°
SD Card Type MicroSD
Max Size (Spec) 128GB
Max Size (User) 512GB
Size Front (mm) 89 x 60 x 36
Size Rear (mm) Unknown
Mount Adhesive
Power Supply 5V
Operating Temp -10°C to 60°C
Battery 500 mAh
Error Notification Audio and Screen
Swivel (To Record Side Windows) No
Apps Android, iOS
Cloud Connectivity No
Release Date Jul 2020
Unique Features Real 4K Front Camera, 1080p Rear Camera
Lane Departure / Front Collison Warning System
Advantages Low Price
Great video quality for front camera
Disadvantages Average rear camera video quality
Battery instead of capacitor
Poor parking mode
Final Word Best 4K video quality during the day at this price. Rear camera is ok. Good value for your money.

Published: Oct 10, 2020

Updated: Oct 27, 2020

70mai A800 - DashCamTalk
70mai A800

The 70mai A800 has the best 4K video quality during the day at this price. Rear camera is average. Good value for your money but replaced with the A800S.

Product SKU: 70mai A800

Product Brand: 70mai

Product Currency: USD

Product Price: 120

Price Valid Until: 2023-01-01

Product In-Stock: SoldOut

Editor's Rating: