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Best Settings for the VIOFO A129 PRO Duo Dash Cam

Best Settings for Dash Cam

One of VIOFO's flagship dash cams is the A129 Pro Duo. It is a 2-channel system with all of the features of its predecessors, the A129 and A119, but with a front-facing camera that records in True 4K UHD.

Whether you’re looking for an A129 Pro Duo, or have already ordered from us, we will provide you with the list of information that will help you maximize the functions of your VIOFO, particularly through its best settings.

Best Dash Cam Settings for VIOFO A129 Pro Duo

Resolution: 4K (front camera) + Full HD 30fps (rear camera)

For the resolution, our recommended setting is 4K for the front camera and Full HD @ 30 fps for the rear camera. Lower resolutions or 60 frames per second significantly reduce detail.

Bitrate: Medium

The amount of recording time available on your memory card may be reduced if you use high bitrate mode. Using a low bitrate saves space and allows you to record for longer periods of time.

Live Video Source: Your Preference

You can choose from your dash cam's front camera, rear camera, PIP mode 1 and PIP mode 2 options.

Loop Recording: 3 minutes

Three minutes strikes a good balance between finding the desired moment and having to scroll through a large number of files.

WDR (Wide Dynamic Range): OFF

The dynamic range of an image is defined as the ratio of its brightest to darkest areas. WDR allows the camera to produce video with near-perfect exposure in a variety of lighting conditions.

Exposure: 0

You can adjust the EV (Exposure Value) to get better recording results under different lighting conditions. The range is -2.0 to +2.0, and our recommended value is 0.0.

VIOFO A129 Pro Duo Parking Mode Settings

Under parking mode, you have three options for the A129 Pro Duo:

1. Auto event detection: When a moving object is detected during parking, the camera will automatically record for 1 minute. If there are no new movements, it will stop recording.

2. Time lapse recording: Time-lapse recording captures a video at low frame rates of 1 / 2 / 3 / 5 / 10 / 15 fps, and it records continuously without audio.

3. Low bitrate recording: This mode records video at a low bitrate of 4MB/s for both the front and back cameras. It continuously records in mini le size with audio recorded.

Note: We recommend buying VIOFO HK3 ACC hardwire kit cable for parking mode recording.

Other Parking Mode Settings

Parking G-sensor: High

When the G-sensor detects significant or sudden movement (such as an impact or collision), an event recording is initiated. In parking mode recording, we recommend setting it to High sensitivity.

Parking Motion Detection: Mid

This adjusts the detection sensitivity so that minor motion caused by wind or rain does not trigger a recording.

Time-lapse Recording and Motion Detection: OFF

When this feature is enabled, if there is movement in front of the camera, a recording will begin. When the camera detects no movement for 60 seconds, the recording is stopped and the device switches to detect mode. If the device detects a new movement in front of the camera, it will start recording again.

VIOFO A129 Pro Duo GPS and Driving Information Settings


If this option is disabled, your camera will no longer measure your speed and position, nor will it synchronize the time/date with the atomic clock. Note that it is only available when connected to a GPS signal.

Speed Unit: Your Preference

Sets the speed unit, either in kilometers per hour (KPH) or miles per hour (MPH).

G-sensor: LOW

The force required to prevent the file from being overwritten by loop-recording is determined by this setting, which sensor ranges from 'Low' to 'High'.

Wi-Fi: ON | 5GHz

Activates your Wi-Fi Connectivity. We recommend choosing the 5GHz Wi-Fi mode for faster connection.

Date Stamp: ON

Imprints the time and date on your recorded video.

GPS Info Stamp: Your Preference

Imprints the GPS information on the recorded video.

Camera Model Stamp: Your Preference

Imprints the camera model on the recorded video.

VIOFO A129 Pro Duo Audio and Display Settings

Record Audio: ON

This activates or deactivates the microphone. This can also be accessed by holding down the []button while the camera is recording.

Screen Saver: 1 Minute

This turns the screen OFF after a set time.

Boot Delay: 0

When you turn on the camera, it will take a few seconds to boot up. The settings you can choose from are O / 5s / 10s.

VIOFO A129 Pro Duo Device Configuration

Date / Time: Your Preference

Time Zone: Your Preference

Language: Your Preference

Display language(English, Traditional Chinese, French, etc): Your Preference

Beep Sound: ALL ON

Frequency: 60 HZ for USA and Canada

This is the setting for frequency adjustment to reduce flickering and banding in recorded video.

Image Rotation: OFF

This turns the screen upside down.

Rear Camera Mirror: OFF

Rear Camera Mirror can make the image of the rear camera to be displayed and recorded as reversed compared to the actual view.

Format: Once a month

All data on the MicroSD card will be erased during the procedure. Once the Micro SD card is formatted, all information on it is lost and cannot be recovered, so make a backup of all important files.

Format Warning: 30 Days

This sets the number of days between format warnings.

Default Setting: 30 Days

This restores camera settings to factory defaults.

Car Number: Your Preference

This is useful for adding license plates or other identifying features.

Custom Text Stamp: Your Preference

Imprints the customized text on the recorded video.

Firmware Version:

Current firmware version check

Best 4K Budget Friendly Dash Cam: VIOFO A129 Pro Duo

The VIOFO A129 Pro Duo has earned great feedback for its 4K capabilities, performance and affordability. In terms of capturing images, the 8MP Sony Exmor sensors capture a cinematic view even in dark conditions - whether for evidence or for recording your travels.

In case you want to watch the videos, you can easily access the videos through the screen or the highly-responsive VIOFO app. The dual-band Wi-Fi of the A129 Pro Duo also makes it win the competition. Installation is also a breeze with the new Static Windshield Stickers that VIOFO includes in every purchase of their dash cams.