Skip to content

VIOFO A129 Pro 4K Dash Cam Review

VIOFO A129 Pro 4K Dash Cam

The A129 Pro Duo is VIOFO’s latest flagship dash cam. It is a 2-channel system boasting all the features of its predecessors the A129 and the A119, but with a True 4K UHD recording resolution in its front-facing camera. The A129 Pro is currently the highest resolution 2-channel dash cam in the VIOFO lineup.

Key Features

  • 4K UHD Resolution
  • Full HD Rear Camera
  • 130° Wide-Angle all-glass Lens (front)
  • 140° Wide-Angle all-glass Lens (rear)
  • 8.29MP Sony Exmor R Starvis IMX317 (front)
  • 2.13MP Sony Exmor R Starvis IMX291 (rear)
  • 4 Bitrate Options
  • H.265 High Efficiency Video Coding
  • Dual-Band WiFi 2.4GHz & 5GHz
  • Super Night Vision
  • GPS Built-in Mount
  • Advanced Parking Mode with Pre-Buffer Recording
  • 2” HD LCD Screen


  4K UHD front recording
Dual-band WiFi support
4 bitrate options
H.265 High Efficiency Video Coding


Bulkier, indiscreet design due to built-in screen
Large 4K footage files requires larger capacity memory card
Weak parking mode capabilities when compared to other 4K dash cams on market
No Cloud connectivity

Key Features

  • 4K Ultra HD
  • 2K QHD Optional Rear Camera
  • 150° Wide-Angle Lens
  • 8.42MP Sony Exmor R Starvis IMX3343 (front)
  • 5.14MP Sony Exmor R Starvis IMX335 (rear)
  • Energy Saving Mode 2.0
  • Super Night Vision 2.0
  • Live View (Driving/Parking)
  • Geo Fencing
  • Locate Vehicle
  • Driving/Parking Impact Notification
  • Road Alert Systems
  • Safety Camera Alert
  • Built-in WiFi


  4K UHD front recording</span
  2K QHD rear recording
  Real-time vehicle tracking via Cloud
  Geo-fencing and alerts
  Driving & Parking Impact Notification
 Unobtrusive, modern design


Large 4K footage files requires larger capacity memory card

In-Depth Video Review

Watch this review in video:


On the surface, the A129 Pro looks identical to the A129. However, the A129 Pro front camera is noticeably heavier than the A129 and that’s because of a built-in cooling system. The A129 Pro is bigger than the A119 by a few millimeters. But just like the two older models, the A129 Pro comes with a 2” HD LCD screen.

Front Camera Video Quality

The front camera is excellent. The lens has an 8.29MP Sony Exmor R Starvis image sensor to deliver crystal clear 4K UHD video quality at 30FPS. Ultra high definition is 4x more vivid than 1080p Full HD and the video recording quality is definitely a much-welcomed upgrade.

Advanced video enhancement technologies including Wide Dynamic Range (WDR) and Super Night Vision, cover a good span between day and night, bright and dark environments to ensure videos are of pristine-quality during the day, and crisp and clear with good definition and minimal noise and blurring at night.

The A129 Pro does have a smaller viewing field at 130-degrees. This is actually 10-degrees less than that of the A129 or the A119. In other words, you are losing about 5-degrees on each side, but in return you get 4x the video quality, so it’s really not a bad trade-off.

Resolution-wise, if you are using just the front camera, your options are 4K at 30FPS or 2K at 60FPS. You can also scale it down to 1080 Full HD at 60 or 120FPS. But if you running the front and rear camera simultaneously, video recording in the front camera is limited to 30FPS.

Another upgrade we see in the A129 Pro is the additional bitrate options. With the A129 and A119, you were limited to just high or low bitrate. But with the A129 Pro, you can choose from 4: Low, Medium, High and Maximum.

Here’s a comparison table for a 1-min video in 4K at 30FPS:

Overall Bitrate

Video File Size


15.3 Mb/s



30.3 Mb/s



42.4 Mb/s



60.3 Mb/s


Rear Camera Video Quality

The A129 Pro uses the same rear camera as the A129. The rear camera is equipped with a 2.13MP Sony Exmor R Starvis IMX291 image sensor to deliver Full HD recording at 30FPS.

If you are looking for an IR camera for the A129 Pro, do note that VIOFO has not released any A129 Pro Duo IR camera. However, the A129 IR camera is compatible with the A129 Pro. In other words, if you have the A129 IR camera, you can simply plug it into the A129 Pro with the existing IR camera cable.

Parking Surveillance

While VIOFO was able to deliver a true 4K UHD dash cam that rivals that of the premium name-brands, such as the Thinkware U1000, it lacks the advanced parking capabilities. Parking mode is definitely one of the weaker areas of the VIOFO A129 Pro. There are 3 options under parking mode: Auto Event Detection with Buffered Parking Recording, Time Lapse Recording and Low Bitrate Recording.

With buffered parking recording, the camera will automatically record a video sequence (from 15 seconds before the event to 30 seconds after the event) if the motion detectors are triggered. If no further motion or impact was detected for 60 seconds, the camera will stop recording and returns to a standby mode until the next time motion or impact is detected.

With the new advancements in parking mode features in the market, what the A129 Pro offers is relatively elementary, especially when the Thinkware U1000 offers the option of ultra -high frequency radar motion detection with the optional add-on RADAR module.


4K dash cams are more susceptible to overheating in hot weather, especially when used for parking mode inside a roasting car at mid summer. As we mentioned earlier, the A129 Pro has a built-in cooling system. The A129 Pro has an operating temperature of -10-degrees to 65-degrees Celsius, so it is built to withstand the hot southern summer days.

And like other premium dash cams on the market, the A129 Pro uses supercapacitors instead of lithium batteries. Unlike batteries, supercapacitors won’t expand or explode under high heat, making the A129 Pro a reliable dash cam under high heat. Another benefit of using a supercapacitor is, in the event of a sudden loss of power, such as a collision, the supercapacitor will provide enough power so that the recorded file may be saved on the memory card before the camera powers down.”

GPS Built-in Mount

The A129 Pro available on BlackboxMyCar comes with the external GPS module. With the GPS, you can record your speed and route data in your video footage files. The GPS will also synchronize the A129 Pro’s clock with the GPS time so that your video files can be correctly time-stamped.

Connecting to the Dash Cam

Just like the A129, the A129 Pro is a dual-band WiFi dash cam and with the additional 5GHz frequency, you can get faster data rates at shorter distances, making it perfect if you need to download multiple footage files when you’re home.

It has been reported that the 5GHz WiFi on the A129 Pro is significantly faster than that on the A129. The A129 Pro’s typical transfer rates were about 8-10 Mb/s while the A129 often only manages 1-2 Mb/s, depending on the device it’s talking to.

To connect to dash cam, you will need the VIOFO mobile viewer app, which is available free on the Apple App Store and the Google Play Store. Using the mobile viewer app, you can get real-time video preview, download and travel data right on your smartphone. Alternatively, you can use the 2” HD LCD screen for easy setup and video playback. This LCD screen is the same as the one on the A129 or A119.

The A129 Pro does not offer any Cloud capabilities.

Saving Video Footage

4K video files are known to be larger in size and as a solution, the A129 Pro comes with the H.265 High Efficiency Video Coding technology. This is the same encoding technology found in the BlackVue DR900S 4K dash cam. With the H.265, 4K videos can be compressed to the size of a Full HD video file.

However, the downside of H.265 is difficulties on playback since many devices will struggle with high bitrate 4K encoded in H.265. The standard H.264 video compression is available and is still the default compression method on the A129 Pro.

Note that the A129 GB does not come with any stock microSD card, so you will need to pick one up at checkout. But because of the larger file size, you may want to consider getting a higher capacity memory card. For instance, say you are going to be using the highest front and rear recording settings, a 128GB car will only supply about 3.5 hours of footage. The A129 Pro supports up to 256GB.


If you are upgrading to the A129 Pro from the A129, please note that:

  1. The A129 Pro Rear Camera is the same rear camera as the A129, which means if you already have the A129 Rear Camera installed in your vehicle you can simply plug it into the new A129 Pro Front Camera if you wish to leave your current rear camera setup intact.
  2. If you are looking for a temporary mount for the A129 Pro, please note that the A129 Suction Cup Mount will not fit the A129 Pro. VIOFO has not yet released any temporary mount solutions for the A129 Pro.

Also because the A129 GB does not come with any stock microSD card, so you will need to pick one up at checkout. The A129 Pro supports up to 256GB and we recommend getting the largest capacity memory card because 4K video files are known to be larger in size.

Who Should Choose the VIOFO A129 Pro

The VIOFO A129 Pro will make a lot of sense for a lot of different types of drivers.

For those who demand the best recording quality: We're talking about 4K Ultra HD. While the rear camera is only giving you 1080p Full HD, the front camera delivers a solid 4K Ultra HD recording quality. With impressive night vision and exposure correction features, the drive ahead of you will be captured in crystal-clear, movie-like quality.

For those who prefer a built-in viewing screen: If you do not have a smartphone or prefer not to use a mobile viewer app, having a screen onboard will provide you with an easy way to setup your dash cam as well as let you see the footage you’ve captured. However, do keep in mind that the LCD screen adds size to the dash cam, and ultimately, makes the entire setup bulkier. If discreteness is important to you, we recommend getting a screen-less dash cam.

For those who want dual-band WiFi support: At this time, the VIOFO A129 Pro and the BlackVue DR900S are the only two 4K UHD dash cams that offer dual-band WiFi support. If 4K recording capabilities plus dual-band WiFi is important to you and you are looking for a lower-cost alternative to the BlackVue DR900S, then the VIOFO A129 Pro would be a good option.

Final Verdict

The A129 Pro is a great 4K dash cam, delivering pristine video quality. The A129 Pro is more than just an improved A129.

Although the A129 Pro lacks the advanced parking mode features and cloud capabilities that the Thinkware U1000 and BlackVue DR900S offer, it has exceeded our expectations on many levels. The A129 Pro is an ideal dash cam system for those who would like to experience 4K UHD recording but prefer to have the convenient control of a screen and does not require advanced parking surveillance

Experience the 4K Madness

VIOFO A129 Pro Duo In-Depth Review

VIOFO A129 Pro Duo 4K Sample Footage

VIOFO A129 Pro Duo Review

Based on 4386 reviews
Great product

Super easy to install and to setup

Perfect install kit

Came by just to grab 2 low profile mini add a fuses and got the kit for a very reasonable price. So nice to have the fuse circuit tester to make the install easier

Great battery pack

Easy to install/hide and is awesome with plug and play with dashcams. Took about 5 minutes to hardwire as it comes with whatever you needed granted that you select those options.

Crazy fast shipping

Ordered the wrong spliced wire kit when I ordered the neo cellink battery and quickly bought this. Thought it was going to come in next week and it showed up the next day in the morning of all times. Had plenty of time to install my dashcam

VIOFO A129 Duo

DIY install was straight forward with parking mode working nicely. Extra mounting adhesive is a plus in the event of windshield replacement. The only negative was my understanding a 32gb microSD came with every dash cam sold. My mistake. The front & rear camera video is quire good and the cost was reasonable for the system. Waiting to see how the Texas summer treats the camera.
Overall a good purchase.

Hi Jeff, thanks for purchasing from BlackboxMyCar. Sorry for the miscommunication - this was a limited time promotion and because of the demand for the cards, we ran out of them and had to put a pause on them. That said, we hope you love your dash cam, and do let us know in the future if you have any questions.
Great customer service!

Joseph gave a great recommendation on which dashcam was the best for my car. Jonathan was knowledgeable, friendly to talk to, and had the dashcam up and running in no time! Definitely recommend BlackboxMyCar for anyone looking for a dashcam.

Thanks Matthew for leaving a review. We will be sure to let Joseph know that he's awesome :) and Jonathan too! Come back anytime.
Awesome 😎

The shipping was fairly Quick. The package was as expected.
I would STRONGLY recommended it to everyone, and especially if you bought a new car or fairly recent. You won’t be disappointed!!

Hi there, thanks for leaving a review. We're glad you enjoyed our rocket-fast 1-3 day shipping so that you could get your package so quickly. Come back anytime!
Dash cam

You guys exchange my viofo129 4k for the thinkware u1000 and am happier the service perfect blackboxmycar to the world just give them a try you won't regret it there right on point a head of the game 💯💯💪💪

Hi Junior, we do everything we can to make our customers happy! Thanks for shopping at BlackboxMyCar :)
VIOFO A129 Pro Duo 4k

VIOFO A129 Pro Duo 4K cam was easy to install. It provides a clear front and back view.

Hi Ernest, you're awesome - thanks for leaving a review!
So far looks GREAT

Have not connected the rear camera yet but the front camera shoots wonderful, clear video, even in the evening with low light. I like a lot of the features on this unit and for the price seems a great deal. I do wish there was an option to just record with no time limit for road trip videos, but it does it's job VERY well and I'm satisfied. Shipping was FAST and product arrived well packed.

Hi Mark, thanks for shopping at BlackboxMyCar. Let us know if you need any help connecting the rear camera, but we're glad to hear that you had a great experience with us!
2 Ch THINKWARE Q800 Pro Install

Booked online, seamless process. Install done within promised timeframe. Clean install, courteous and informative staff. Will be bringing in my other car for another camera install.

Hi Dan, thanks for leaving a review. We're here to help - hope to see you back soon with your other car!
Viofo a119 v3

Was debating for a while on a dashcam and settled on a Viofo a119v3. This cam was within my budjet, and after reading reviews I decided on this one.
I also read great reviews about blackboxmy car customer service and purchased from them. The camera itself seems to have great options and video quality is bar none...….only had for a week but very satisfied...Thanks Black box!

Hi Yves, thanks for leaving a review. We're glad to hear that our team was able to help you out, and you had such a great time with our support team :) Hope you continue to love your VIOFO - ask us at anytime if you have any questions.
Great for my needs; minor software friction

First let me say that BlackboxMyCar has been fantastic throughout the process of choosing and installing my dash cams. The people behind that chat bubble know what they’re talking about, something I don’t usually expect from first-tier customer support.

Second: Overall I’m very happy with the VIOFO A129 Pro Duo. Video quality is sharp and clear, and it was easy to set up. The front camera is slightly smaller than I’d pictured it, which is nice. I’ve only had it a few weeks, but so far it’s working perfectly. Reliably fires up and starts recording when I get in the car and goes into parking mode when the car is off.

This is my first-ever dash cam and routing the cable through the headliner, A-pillar, etc., was tedious but not particularly difficult. Wiring the cameras into the car’s fusebox was also relatively straightforward, but get the circuit tester if you don’t already have one. It makes identifying always-on vs. ignition-switched a snap.

My only complaints—and these are minor nits—are mostly software issues.

The hardwire kit cable has a cylindrical ferrite bead near the connector, which makes it impossible (in my case) to hide that part of the cable—the bead won’t fit in the seam where I would otherwise stuff it.

Connecting to the camera from the iOS app requires enabling WiFi on the dash cam each time, and stopping the current recording. I’d love to be able to launch the iOS app and have it connect to the camera without having to jump through these extra hoops.

The other oddity that I haven’t really tracked down yet is that recordings using the H.265 codec play fine on my phone, but won’t play correctly when transferred to a computer. On the computer various apps appear to be playing around 1fps (maybe just showing keyframes?). I have yet to find an app that will interpret these files correctly—Final Cut Pro, Premiere, Adobe Media Encoder, QuickTime player—apps that otherwise understand and support H.265. The only way I’ve found to get usable H.265 files from the phone to the computer is to import them into iMovie on the phone and re-export them. (All of this could probably be avoided by setting the camera to use H.264 instead.)

Again, these are minor nits and overall I’m happy with the VIOFO.

Hi Ray, thanks for leaving a review - behind those chat bubbles is a great team who's happy to help :) We're glad you love your VIOFO, and we will pass your feedback over to VIOFO to see what they can do. As for the H.265, unfortunately, that's the downside of the file format. It's great for file sizes, but hard for the computer to encode and play smoothly without some adjustments. That said, we did write a blog recently about it where you can learn more: Let us know if you have any questions!
Satisfied customer

Good dashcam for the price. I am happy with my purchase! Customer support was good. They answered all my stupid questions.

Hi MH, there's no such thing as stupid questions :) Thanks for shopping at BlackboxMyCar!
Great cam kit, fast delivery

I had a great experience with BlackBoxMyCar and would happily order electronics from them again! I guess I'll briefly document my journey:
1. Trying to decide which cameras to get, I contacted a support person on the chat. He was very courteous and helpful and did not try to up-sell me.
2. Fast delivery, got everything in perfect condition, tested it out using the lighter power cables, yay!
3. [mostly unrelated to the seller] I decided I am not competent enough to do a good install, so I hired a professional. Post-installation everything works great and no wires are exposed. It is a spiffy setup!

Note: I am not using the cloud features at all.

Hi Snowslider, I'm so glad that our team was able to help you out with everything that you needed. Please don't hesitate to reach out at anytime if you have any further questions regarding your dash cam.
Good camera

I wish it had a button to capture incidents and commit them to a file

Hi Niska, thanks for leaving a review. Our support team has reached out to you directly to help you with this. We will also direct your feedback over to BlackVue to see if they have anything to add.
Peace of Mind

I wouldn't recommend spending a thousand bucks on a dual-channel dashcam, but I do recommend spending within your budget on a solid dashcam. That's what I did, with the Thinkware U1000. It is a phenomenal piece of equipment and the customer service I received from Johnathan/Katrina was great. The installation team managed to get the dashcam installed on my Kona in less than 2.5 hours! If you are unsure of what to get and where to get a dashcam, I would 100% recommend going to BlackboxMyCar! :)

Hi Kevin, thank you for shopping at BlackboxMyCar. We're so glad to hear that our team was able to help you out. We hope you love your Thinkware U1000 - don't hesitate to ask us if you need further help in the future :)
Escort Max 360C Radar Detector

Excellent customer service. Ordered and received
with no issues.

Thanks for leaving a review, J. O.!
Done Right!

I booked appointment online. Got a reminder a couple of days ahead of appointment. Quickly processed at appointment check in. Installation was completed in less time than I expected. Installation has a professional look and I would recommend this business due to the service I received.

Hi Doug, thanks for leaving a review! Glad to hear your installation was smooth for you. Please don't hesitate to reach out if you have any questions.
Doing the job

The first Dash cam I used had parking mode and although it had a setting to cut off automatically at 11.9 V after a time of about nine months it took it’s toll on my battery. This time around I’ve got a new dash cam also with parking mode but now I have the Cellink Neo battery in between my battery and dash cam and it’s working flawlessly I love the fact that my vehicles battery is not being taxed. Fully charged the Cellink Neo will last for 22 hours and that’s while running a 4K front camera and a 2k rear

Hi Edward, thank you for writing a detailed review for your Cellink NEO battery :) Glad to hear that it's working out well for you!
more then expected

After installation didn’t expect an explanation of the camera function. Made it easy to understand the features.

Hi Robert, glad to hear that the features were easy enough to understand. If you have any questions, please don't hesitate to reach out to us.
Works good

Works good

Thanks for leaving a review, Donald!
Great dash cash well worth the investment!

Have you ever been wrongly cited in an auto accident because of the lack of witnesses or the other party says you were at fault? I purchased The VIOFO A129 Pro 4K dash w/ GPS for both of my vehicles. Now when I'm driving, I feel a sense of comfort and security knowing if something happens I have footage. I highly recommend this product. The company is great and there customer service is excellent! Don't wait until it's too late...

HI Brannan, thanks for leaving a review! We're glad to see that you're seeing the value of a dash cam, and we can't wait to see what you capture with it. Feel free to join our Monthly Video Contest if you capture anything awesome! See here to learn more:

Awesome , super friendly and helpful staff. Will go there for all my dashcam needs.

Hi Steven, thanks for shopping at BlackboxMyCar!
Cheap. Super fast shipping. Real stuff

Real blackvue quality stuff. Shipping from Vancouver to Quebec city within one day

Hi Martin, thank you for shopping with us. Glad to hear that your package got to you so quickly!