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VIOFO A129 Pro Duo 4k Dual Dash Cam Review

In search of a new dashcam? Have you heard of the VIOFO A129 Pro Duo 4k dual dash cam? This powerhouse of a dashcam comes in the shape of a compact wedge shape and it won’t ever obstruct your field of vision. 

It offers reliable, high-quality recordings with camera technology aimed at identifying essential factors, like license plates. Today, we’ll cover everything you want and need to know about the VIOFO A129 Pro Duo Dual dash cam. 

How Does VIOFO A129 Pro Duo 4k Dual Dash Cam Work?

The VIOFO A129 Pro Duo is simple to use. After installing it in your car, it will automatically start recording once you start your engine. It will even turn itself off when you turn off your car’s engine or go into parking mode if it is hardwired. 

Parking mode can capture recordings in three ways: constant recording, timelapse recording, or event detection recording. Additionally, its built-in LCD screen is easy to use, meaning you won’t have to pull out your phone to change the settings. 

However, you can still use a mobile app to control your dash cam if that’s what you prefer. There is also a remote control that you can purchase separately if you want to control the VIOFO A129 Pro Duo 4K that way.

VIOFO A129 Pro Duo 4k Dual Dash Cam FAQs

So, you got your new VIOFO A129 Pro Duo 4k dual dash cam. Maybe you even already have it installed. Now what? Well, if you’re wondering how some of the features work or what its other capabilities include, we’re here to share some of the most frequently asked questions about the VIOFO A129 Pro Duo dash cam.

How Do I Install My VIOFO A129 Pro Duo 4k Dual Dash Cam?

First, unbox your dash cam. Next, you should clean the interior of both your front and rear windows. Then, attach the mount to your dash cam. After securing the mount, you will want to connect the power cable to your dash cam. 

Start by locating where you want to place your dash cam, and then use the adhesive pad to attach it to your front window. After that, you can tidy up the cables and connect your dash cam to your car’s 12V port. You could alternatively connect the VIOFO dash cam with the separately purchased hardware kit. 

Next up is the rearview camera. Again, simply attach the USB cable and the mount. Then, use the adhesive pad on the mount to place it on the rearview window. All that’s left is to connect the other end of the USB cable to the front camera and insert an SD card.

Can I Hardwire My VIOFO A129 Pro Duo 4k Dual Dash Cam?

Yes, you can hardwire your VIOFO A129 Pro Duo dash cam. However, you’ll need to purchase separately VIOFO’s HK3 ACC hardwire kit. This additional kit will also allow you to make the best use of the dash cam’s parking mode.

How Do You Stop Recording On VIOFO A129 Pro Duo 4k Dual Dash Cam?

The A129 Pro Duo dash cam will automatically record as soon as the engine is turned on. To stop this recording, simply push the Rec button. 

You can also control the camera via the app on your smartphone after connecting through Wi-Fi. Alternatively, you could purchase the Bluetooth remote control for this dash cam as well.

Can A129 Pro Duo Be Equipped With A129 IR Interior Camera?

Yes, you can opt for the A129 IR interior camera. However, this will be a substitute for the included rear camera. 

Can I Connect My Phone To My VIOFO A129 Pro Duo 4k Dual Dash Cam?

Yes, you can. The VIOFO A129 PRO Duo comes with high-speed 2.4GHz and 5.0GHz dual-band Wi-Fi. This will give you a more stable Wi-Fi signal and it’ll allow the dash cam to transmit via two different standard frequency ranges to minimize wireless interference. 

How Do You Turn On Parking Mode in VIOFO A129 Pro Duo 4k DuoDash Cam?

If your VIOFO A129 Pro Duo is hardwired, it will turn on parking mode when the engine is shut off and resume regular recording when it is turned back on. If it isn’t hardwired, you can easily set up parking mode in the settings.

Does A129 Duo Support 1080P 60fps?

While the rear camera is plugged in, all video recordings, no matter which resolution, are capped at 30fps. However, if you are only using the front camera, it can record 2K resolution at 60fps and 1080p at 120FPS.

VIOFO A129 Pro Duo 4k Dual Dash Cam Performance Factors

There are a few key factors dash cam shoppers should consider before making a purchase. Some of the most common are image quality, design, and ease of use. The A129 Pro Duo excels in all three categories. 

Image Quality

Image quality is important because high-quality images make it possible for you to identify valuable details, like license plates when reviewing footage. Additionally, you might require higher-quality images for personal reasons. 

Recording resolution and bitrate determine image quality. The VIOFO A129 Pro Duo dash cam’s front camera can record in 4K resolution at 30fps. Plus, it also has four different bitrates, so you can adjust it specifically to fit your needs.

Recording resolution and bitrate determine image quality. The VIOFO A129 Pro Duo dash cam’s front camera can record in 4K resolution at 30fps. Plus, it also has four different bitrates, so you can adjust it specifically to fit your needs.


Design is essential since you’d like your dashcam to be as inconspicuous as possible, so it goes unnoticed by others. You also don’t want it to obscure your field of vision while driving. The VIOFO A129 Pro Duo has a subtle wedge-shaped design and can be mounted near the rearview mirror. It will not obscure your vision and won’t draw much attention.

Ease of use

People like how easy to use gadgets are. Nobody wants to have to go over a lot of steps before being able to use their new dash cam. Thankfully, the VIOFO A129 Pro Duo is simple to use! 

This dash cam automatically turns on when the engine turns on and off when the engine turns off. It can even go into parking mode automatically once it has been hardwired. Furthermore, this dash cam comes with a built-in HD LCD screen, which will allow you to control it without the need for a smartphone.

Technical Specifications

Technical Specifications
DimensionsFront: 3.31in x 2.17in x 1.57in 
Rear: 2.09in x 1.22in x 2in 
ResolutionDuo mode:
Front : 3840x2160 @30 fps
Rear: 1920x1080 @30 fps
Front cam only:
3840x2160 @30 fps
2560x1440 @60 fps
1920x1080 @120 fps
Display Type2-inch HD LCD-display
Mounting TypeMounts are attached with 3M adhesive stickers and dash cam modules click into the mounts.
Voice Command No
CameraBoth modules have a built-in camera
StorageSupports up to 256GB SD card
Lane AssistanceNo
Speed Limit IndicatorNo
Traffic ServicesNo
Battery12V adapter or hardwire kit

How Has the VIOFO A129 Pro Duo 4k Dual Dash Cam Improved?

The VIOFO A129 Pro Duo has come a long way from its predecessors, increasing the resolution from 1080p up to 4K. Furthermore, the earlier models only had motion and impact detection recordings in parking mode, while the A129 Pro Duo sports three different recording options in parking mode. 

The quality of the lens has increased, and there is now a built-in cooling system. The A129 Pro Duo also has four different bitrate options, up from two for the earlier models. For all of these upgrades, it is a little heavier and only slightly larger.

Best For 

The VIOFO A129 Pro Duo 4k Dual Dash Cam is best-in-class for many dash cam users.

  • Best 4K quality recordings for this pricepoint 
  • Multiple ways to control the dashcam, as well as without a remote or app through the built-in screen
  • Multiple resolution options
  • Multiple bitrate options for different video quality
  • Night vision, which you can further improve by switching out the rear camera for the A129IR (infrared) camera
  • Hot climates. The front camera has a heat discharge construction and will shut down before reaching dangerous temperatures  

Try the VIOFO A129 Pro Duo 4K Dual Dash Cam

So if you’re on a budget and looking for a powerhouse of a dashcam, the VIOFO A129 Pro Duo is sure to satisfy your needs. It comes with multiple recordings options, including 4K ultra HD. Thanks to its Sony night vision technology, this dash cam makes accurate nighttime recordings too. 

After hardwiring the dash cam, it will be able to support up to three different parking modes. It is slightly bigger than some dashcams, but this is due to its built-in HD LCD screen, which makes it easy to operate without any other gadgets!


Hardware only – $249.99

Hardware kit – $299.99 including polarising lens filter and optional BlueTooth remote control.

Pros & Cons


The VIOFO A129 Pro Duo boasts some genuinely great qualities for its price tag, such as:

  • 4K ultra-HD front recordings
  • Sony Exmor 8MP sensor for excellent night-time recordings
  • 4 Bitrate options for different video quality
  • Mount with GPS module built-in
  • Three different recording options for parking mode
  • Rear camera included


For all the good qualities the VIOFO A129 offers, a few things could have been better.

  • The LCD screen makes this dash cam slightly bulkier.
  • There are no cloud functions.
  • All recordings must be manually downloaded to your phone.
  • There is no online storage.
  • The field of vision is 130° which is lower than other similarly priced dash cams.

User Reviews


Technical Specs

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