Thank you, Bill from Viofo, for providing the A129 Pro Duo for review.

Sicurez Lazada product page: A129 Pro Duo
Viofo Official Aliexpress product page: A129 Pro Duo

 

Technical Specs:
• Processor: Novatek 96685
• Sensor: Front – Sony Exmor R IMX317 & Rear – Sony IMX291 Starvis
• Lens: Front F1.8 Aperture 130° Wide Viewing Angle & Rear F1.6 Aperture 140° Wide Viewing Angle
• Resolution: front cam only: 3840×2160 30fps, 2560×1440 30/60fps, 2304×1296 30fps, 1920×1080 30/60/120fps ; front & rear cam: 3840×2160 30fps & 1920×1080 30fps, 1440p 30fps & 1080 30fps, 1920×1080 60fps & 1920×1080 30fps
• 2″ High-resolution TFT
• Support up to 256GB microSD card
• Built-in 802.11n 2.4GHz / 802.11ac 5GHz Dual-band Wi-Fi
• Built-in supercapacitor
• GPS mount
• Bluetooth remote (optional)
• CPL filter (optional)
• Parking mode (requires Viofo HK3 hardwire kit)

 

The box

 

Open box

 

Content

• A129 Pro
• GPS mount
• Rear cam
• Dual USB car charger
• Long mini USB cable
• Short mini USB cable
• Rear cam cable
• Micro SD card reader
• Cable clips x5
• Spare mount tape
• Pry tool
• User manual
• Warranty card

 

A129 Pro

 

GPS mount

 

Rear cam

 

Rear cam mount

 

Dual USB car charger

This D3000 is a new USB car charger that can supply enough power for the A129 Pro Duo to record in 4K. The previous model is D2000.

 

Long mini USB cable

 

Short mini USB cable

 

Rear cam cable

 

Micro SD card reader

 

Pry tool

 

Cable clips

 

Spare mount tape

 

User manual

 

Warranty card

 

Initial firmware out of the box

 

Updated to latest firmware v1.1.1015

 

Bitrate settings

There are 4 bitrate settings that you can set on the A129 Pro. Below is the information for H.264 & H.265 encoding for the 4 bitrate settings.

H.264 Low bit rate
Front cam: 3840×2160 30fps – Overall bit rate: 15.3 Mb/s. 110MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 10.3 Mb/s. 73.9MB per 1min file.

H.264 Medium bit rate
Front cam: 3840×2160 30fps – Overall bit rate: 30.3 Mb/s. 217MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 12.4 Mb/s. 88.8MB per 1min file.

H.264 High bitrate
Front cam: 3840×2160 30fps – Overall bit rate: 42.4 Mb/s. 303MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 14.3 Mb/s. 102MB per 1min file.

H.264 Maximum bit rate
Front cam: 3840×2160 30fps – Overall bit rate: 60.3 Mb/s. 431MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 16.2 Mb/s. 116MB per 1min file.

H.265 Low bit rate
Front cam: 3840×2160 30fps – Overall bit rate: 13.7 Mb/s. 97.7MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 8,665 kb/s. 62MB per 1min file.

H.265 Medium bit rate
Front cam: 3840×2160 30fps – Overall bit rate: 22.4 Mb/s. 160MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 10.3 Mb/s. 73.9MB per 1min file.

H.265 High bitrate
Front cam: 3840×2160 30fps – Overall bit rate: 34.5 Mb/s. 247MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 12.4 Mb/s. 88.8MB per 1min file.

H.265 Maximum bit rate
Front cam: 3840×2160 30fps – Overall bit rate: 52.4 Mb/s. 375MB per 1min file.
Rear cam: 1920×1080 30fps – Overall bit rate: 14.5 Mb/s. 104MB per 1min file.

The H.265 encoding is a hidden mode in the A129 Pro Duo. To enable it, stop recording and hold the mic button on the A129 Pro Duo. An SD card icon will appear on the left side of the screen to indicate using H.265.

Using H.265 will save some space on your micro SD card but do take note that currently not all devices are able to play H.265 properly as it requires more processing power to decode during playback.

 

Test setup

I will be using a 128GB Netac Pro microSDXC V30 card for the recordings.

 

Videos
Below is recorded in:
Front: 3840×2160 30fps with an overall bit rate of 30.3 Mb/s using Medium bitrate mode, WDR on and without the CPL filter.
Rear: 1920×1080 30fps with an overall bit rate of 12.4 Mb/s using Medium bitrate mode, WDR on and without the CPL filter.

 

Final thoughts
Viofo is the first Chinese dashcam manufacturer to release a true 4K dashcam. And it currently has the best image quality for any dashcam out there.


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