VIOFO A129 Pro Duo 4K Dual Dash Cam

VIOFO A129 Pro Duo | Upgraded Super Night Vision & WDR | Built-in Wi-Fi & GPS | Loop recording | Built-in Supercapacitor | and more

If you’re looking for a high-quality professional dash camera for your vehicle, you may opt to check one of the newest models today – the VIOFO A129 Pro Duo. Like its predecessor, this dash camera comes with many great features, including an ultra 4K dual-channel WiFi dash cam.

Continue reading to know if this dash cam is worth its market value.

VIOFO A129 Pro Duo 4K Dual Dash Cam 3840 x 2160P Ultra HD 4K Front and 1080P Rear Car WiFi Dash...
  • 【Ultra HD Real 4K Dual Channel】 Dash cam A129 Pro Duo adopt top quality 8MP IMX317 Sensor on front camera and rear camera...
  • 【Upgraded Super Night Vision & WDR】8MP IMX317 Sensor combine with upgraded 7-Glass F1.8 aperture lens and WDR technology,...
  • 【Advanced Parking Mode】A129 Pro Duo will record and lock 15 seconds video before the event and 30 seconds after an impact...
  • 【Wireless Wi-Fi & GPS】 5GHz & 2.4GHz dual-band Wi-Fi could transmit in two different standard frequency ranges to avoid...
  • 【Premium Functions】 4K resolution, loop recording, emergency recording, motion detection, time lapse, parking mode, wifi...

Last update on 2024-07-24 / This is Amazon Affiliate link / Images from Amazon Product Advertising API

VIOFO A129 Pro Duo Ultra 4K Features

VIOFO is one of the newest dash cam models yet it has already been sought out by many and has earned its spot on our top lists. It has aspects and features any user would want: affordability, user-friendliness, and high-quality video recordings.

The A129 Pro Duo is similar in many ways to its predecessor, the A129 Duo, such as in its looks and some features. The one key difference is that the Pro Duo records in 4K. However, 4K dash cams are a bit expensive because of the quality it provides. So, do you get your money’s worth with its extra cost?

This model is a two-channel dash cam featuring one upfront camera and one in the back. The said front captures a 4K video vividly with the Sony’s premium Exmor R 8MP sensor; the rear of it is a 2MP Sony Starvis that captures 1080p video.

Moreover, the main camera has its own 2-inch HD LCD display camera. This unit includes a built-in GPS, dual-band Wi-Fi where you can directly connect with your smartphone, and a motion sensor.

What’s not included in the box?

If you purchase this model, there are a few things though that you won’t find in the box. The first is a microSD card. Since it doesn’t come with one, you need to go for a large-capacity card because the 4K video files take up a huge space.

​To give you an idea of how much storage you need, a 128GB card has a capacity of 3.5 hour-video footage if the front camera is set to 4K and the rear camera is set at full HD. The maximum capacity though is 256GB.

Second, if you want to use the parking mode of A129, you need to have the hardwire kit.

Third, there’s an optional polarizer for around the same price as the hardwire kit. This reduces the reflections from the windscreen and dashboard of your car, which in turn allows the camera to record clearer videos that have better contrast.

​How much does it cost? 

VIOFO’s A129 Pro Duo is currently priced here. It’s certainly a high-performing dash cam with video and optical captures that are near to perfection.

The A129 Pro Duo is identical to its predecessor, the A129. So physically, it’s difficult to tell them apart. They have identical GPS mounts. They also have the same 2in color screen and buttons and ports.

So, if you have the old model, it will probably take you one minute to install the Pro Duo. Simply use the power wire and GPS mount from the A129 and plug the rear camera directly into the side of the A129 Pro Duo, and voila, installation is successful.

vifo  A129 pro duo

When the 4K UHD upgraded from the VIOFO A129 Pro Duo, the front video showed enough and relevant details. This means that the extra storage space 4K UHD requirements might actually be worth it. The rear video is one of the exceptional 1080p there is in the market.

With this 4K UHD front dash camera and 1080p rear camera, this model is an exceptional upgrade from its old models. Throw in some integrated GPS and WiFi connectivity, this is a quite likely one of the models having the best value in the market today.

So far, it’s on a higher level compared to the Nextbase 422GW or 322GW, which offer a largely similar feature set.

Actual Design and Best Features

As to its design and features, Viofo A129 Pro Duo consists of a 140-degree FOV 1080p rear camera – the Sony EXMOR IMX291; and a 130-degree field of view in a 4K UHD camera – the Sony EXMOR IMX317 sensor. The front camera connects via a long and thick cable. Both can be adjusted on a vertical plane only. It means careful alignment will be necessary during the installation for best results.

The main dash cam also has a two-inch color display and five multifunction navigation buttons underneath, plus one to take emergency videos. The buttons are clearly labeled and the menu is also properly organized and easy to navigate and control. 

Going on the right side of the main unit, you’ll find the following: connector (USB), A/V output, and rear camera connector. While on the left side, you’ll see the microphone, the SD card slot, and a reset button.

The operating temperature range for the A120 Pro Duo is from an estimate of +14 degrees to +140 degrees Fahrenheit. A capacitor is necessary for it will power the unit for approximately five seconds after the removal of 12 volts. There is also a GPS on board, and its advantage to other dash cams is that it has an automatic function of setting the date and time. This is beneficial, especially for recorded videos used as a piece of evidence of a crime or accident.

How’s the performance?

The 4K UHD dash cam concept created doubts and confusion for many since a 2160p video requires estimated storage of 1GB for a mere three-minute video. That would mean four times more than what a 1080p video requires.

At this rate, a 32GB SD card can be used up in less than two hours. So, under constant use, your SD card will probably wear out quicker. The 400-percent increase in storage requirements is really a huge move for the unit.

Some people would only prefer 1080p, claiming that it’s better for daily use. The new A129 Pro Duo though captures more vivid pictures and videos with finer details using its 4K UHD. So, if you’re after a higher quality of captures, then it may be worth the extra expense.

Despite the flare issues, the night captures of A129 Pro Duo’s are generally good. The camera also has a wake-on-motion mode for parking, which is best for any type of surveillance. The parking mode requires hardwiring or the use of an OBD-II power source.

VIOFO A129 Pro Duo 4K Dual Dash Cam vs Rexing V1P Max 4K UHD

Rexing V1P Max 4K UHD is also a 4K dual-channel recording with excellent front and rear camera record – REAL 4K Front + rear 1080p. This feature will give you a simultaneous recording of the road in front and behind you through your pro camera and displayed via your LCD screen.

The said model may be the biggest competition of the VIOFO A129 Pro Duo today, and for a reason.

The improved night vision feature of the Rexing V1P Max model allows for the optimal performance of the dash cam, especially in situations with low lighting. Its glass lens fine-tunes the exposure via its 170-degree ultra-wide-angle lenses.

The dash cam has its GPS built-in, Wi-Fi, and a mobile app available on both Android and IOS.

The GPS can accurately record your driving location and actual driving speed. You can also view the route and tracker of your driving on Google maps via the Rexing Connect App.

The mobile app allows you to view and download the recordings of your dash cam instantly using your smartphones. With this, you can easily share your wonderful road experiences on your social media.

Videos can be recorded at up to three-minute intervals. When it reaches its storage limit which is up to 256GB, the unit overwrites the oldest and unlocked recordings automatically.

The good thing is that the Accident Auto Detection happens with its built-in gravity sensor. And when it detects a collision, the current video will be locked and saved.

A supercapacitor helps to deliver the power. It’s a premium alternative to a lithium-ion battery. Its features have enhanced temperature resistance to hot and cold climates.

It also has a parking monitor feature wherein the camera turns on automatically and records a video for 20 seconds whenever it detects vibration.

Its installation is also very easy. You can easily mount it on the windshield. Both the VIOFO A129 Pro Duo 4K Dual and Rexing V1P Max 4K UHD have excellent features.

How you choose between the two is based on your personal taste and preferences. But before you choose, consider the things we mentioned above so you can have a more informed buying decision.

Frequently Asked Questions

1.) What’s included in the box?

The following are the inclusions of the VIOFO A129 Pro Duo: 4K Front Camera, 12V Car Adapter and 13’ Power Cable, Mini USB Data Cable, Rear Camera Cable (20′ long), GPS Logger, Cable Clips, Card Reader Adapter, Adhesive Mount Stickers, trim tool, and manual.

2.) How long does it take to record at max resolution without resetting/overwriting with 256 GB?

It takes approximately 8 hours at h264.

3.) What kind of warranty is on this?

The warranty is called “Capture Your Action.” This provides a one-year warranty and unlimited support.

4.) Where is the manual for this product online?

You can find the manual on the VIOFO website.

5.) If I’m parked in my garage for more than 24hrs is there a way to unplug the camera so I won’t drain my battery?

You can simply press and hold the left button (Menu button) for about five seconds, and the camera will power down.

6.) My video is choppy and stutters. Not smooth. I can’t see the resolution. Is there a solution for this?

Not all computers can host a 4K video playback. Upload a clip to YouTube, and you’ll see normal video playback there if that’s the case.

7.) How do you activate the GPS?

Set on the camera itself. There is an option for GPS to power on/off. It should be defaulted to on.

8.) The instructions say that the camera system requires the micro-SD card to be formatted in fat32; will exFAT format work with this camera system?

No, the camera only supports the card in FAT32; please format the card before inserting it into the camera.

9.) What is the power connector to the front dash camera? Is it a micro-USB or mini-USB or something else?

From the manual: Connect the camera to a computer by using the included short mini-USB cable. So yes, mini-USB, not micro.

10.) Does each camera take its own micro sd card, or just one card for both? Also, what is the best card for this device?

Only one micro SD card can be used. The recordings for the two cameras are stored in two separate files for each block of recorded time. The Lexar 633x 512GB micro SD card works perfectly.


Looking for the perfect innovative and professional dash cam is one of the challenges to most drivers. You may opt to check new products that would definitely suffice your expectations.

The Viofo A129 Pro Duo is a perfect example of a 4K dash cam that’s worth recommending. With its detailed daytime video captures and high-quality nighttime captures, to its integrated GPS, user-friendliness, and an acceptable run time off, this dash camera is a full package.