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Fresh and New Features of the VIOFO A139 Pro 4K UHD
Triple-channel dash cam

Released in January 2021, the A139 dash cam series has been a groundbreaking dash camera for VIOFO, as it was considered as their first model to support up to three channels that’s highly-recommended for ride-sharing services. More than the all-around coverage, this dash cam was also equipped with 2K QHD, rotatable front lens, 5GHz Wi-Fi all packed in a discreet design.

No doubt - we loved it, and this dash cam received numerous positive reviews for its stunning performance while being pretty light on the pockets. Because of this, VIOFO designed an upgraded version of the A139, added with the features that all VIOFO fans have been waiting for: 4K UHD resolution, with the VIOFO A139 Pro.

What are the new features of the all-new VIOFO A139 Pro?

The first 3-channel VIOFO dash cam that supports 4K UHD

While the A139 is capable of capturing footage in a 3-channel configuration, it only records 2K QHD for its front camera, and full HD for its rear and interior. If you’re a VIOFO fan and wanted 4K, the A129 Pro was an option, but unfortunately, it can only support up to two channels.

Now, with the VIOFO A139 Pro, you get the best of both the A129 Pro and A139’s worlds! Yes, the new VIOFO A139 Pro supports up to 4K UHD 3840 x 2160P front recording in all single, dual, and triple channel options.

Therefore, users who prefer full coverage in three-channel recording will no longer have to deal with front 4K downgraded to 2K as the A139 Pro 3CH is the first to support true 4K front + FHD interior + FHD rear recording. Definitely the best VIOFO for videos to date!

The first dash cam to use Sony STARVIS 2 technology

Safe to say, the VIOFO A139 Pro is truly a history maker. Why? Above the hundreds of dash cam models available in the market, it’s the VIOFO A139 Pro series that became the first in the industry to use the newest 8MP IMX 678 Sony STARVIS 2 technology which ensures improved low-light performance and contrast, higher resolution and clarity, and more efficient consumption in parking mode.

In addition to having a larger image size with a type of 1/1.8", the 4K A139 Pro series now has much less noise and motion blur during day and night recording, making license capturing ever better than before.

4K HDR, plus Night Vision 2.0!

Love (or need) to drive during the night? You’ll surely like this next feature. VIOFO understands that night vision has always been an issue with dash cams, particularly 4K models. With the new A139 Pro, its 1/1.8" image sensor type with larger pixels captures more light under the same illumination level. Its groundbreaking 4K HDR tech also balances over dark and bright areas - automatically.

See what’s inside clearly with Infrared Cabin Night Vision

And if you want to take a look at what’s happening inside your car, what your driver or passenger do, the interior camera of the VIOFO A139 Pro will act as the CCTV for you. Through the A139 Pro’s F1.6 aperture, 7 elements glass lens, and six infrared LED lights, this dash cam records incidents inside the cabin in detail even in complete darkness, extremely useful for commercial and Uber drivers to avoid unnecessary disputes. The IR will also automatically adjust and turn on or off as needed, whereas plenty of other models out there just leave them on all the time. If leaving the LEDs always on is preferred, or always off, this can be configured in the settings as well.

Super Slim Cable for Easy Installation

For easier installation, the A139 Pro series now comes with 2.88mm ultra-thin coaxial cable and miniature connectors. When compared to traditional rear cables, it is simpler to install and can be better hidden on the car roof. This also reduces the electromagnetic interference to other in-car electronic devices such as car multimedia systems.

Connect Conveniently with 4X Faster 5GHz Wi-Fi

High-speed connection guaranteed. The A139 Pro series, like the recent A229 Duo, includes an upgraded 5GHz Wi-Fi module that provides 4 times faster data transfer, ensuring smooth video streaming, downloading, and sharing through the easy-to-use VIOFO mobile app available in Android and iOS devices.

A Pro in Positioning with 300° Rotatable Lens

Ensuring fuller video coverage, the all-new A139 Pro series' front 4K camera is designed with a 140-degree lens that can be rotated up to 300°, adapting better in different car models for optimal positioning. Now, you can easily switch the front lens to the cabin if you like to record your road trip adventures or want to include travel videos in your vlogs!

Stay focused, and informed with Voice Notifications

For user convenience, the A139 Pro series has been equipped with voice notification features to notify you of setting changes or memory card errors. Available in multiple languages, this feature allows you to remain focused on the road while being in the know of your drive and dash cam’s status. No more annoying beeping sounds! Bye!

Brand New Features: Free CPL, and 512GB maximum SD card capacity!

Unlike most VIOFO dash cams like the A139, the A139 Pro series now includes a CPL Filter in its package. No more added cost in buying a CPL filter, as it's already FREE! This circular polarizing lens (CPL) filter can be used to significantly improve image clarity and contrast by reducing reflections and glare off glass and road surfaces, best paired with the BlackboxMyCar Aqua Shield all-weather protection guard. If this works on the A139, can you imagine how sharper and clearer the video will be with the 4K UHD and Sony STARVIS 2 powered A139 Pro?

And while 256 GB storage space might be big enough for some, VIOFO even leveled up the storage capacity of the A139 Pro, increasing the maximum SD card capacity to up to 512GB. It's rare to find dash cams compatible with memory cards up to 512GB, so the A139 Pro is another game-changer in this area!


VIOFO A139 Pro 3-Channel

Video Resolution

4K UHD @30FPS | 1080p Full HD @30FPS | 1080p Full HD @30FPS

Image Sensor

8MP Sony STARVIS 2 IMX678 | 2MP Sony STARVIS IMX291 (secondary)

Field of View (F|R|I)

140° | 170° | 170°



Parking Mode

Yes, 3 Parking Modes



Operating Temperature

-10°C - 65°C (14°F - 149°F)

Loop Recording


Max SD Card

512 GB

LCD Screen



Yes, Dual-band

Mobile App






Country of Origin


Manufacturer Warranty

1-Year Manufacturer Warranty


Meet VIOFO’s Flagship 4K Dash Cam: the All-New A139 Pro

Aside from the stunning features listed above, the A139 Pro 4K UHD dash cam also includes Intelligent Parking Monitoring, a GPS logger for driving tracking that works best for your 24/7 car security! If you want to get your hands on the VIOFO A139 Pro, shop yours now only here at BlackboxMyCar!

VIOFO A129 Pro Duo 4K 2-Channel Dash Cam with GPS - Dash Cams - VIOFO A129 Pro Duo 4K 2-Channel Dash Cam with GPS - 2-Channel, 4K UHD @ 30 FPS, Adhesive Mount, backorder:Sorry - Item on Backorder - ETA July 12th, China, Display Screen, G-Sensor, GPS, Loop Recording, Mobile App Viewer, Night Vision, Parking Mode, Rear Camera, Super Capacitor, Wi-Fi - BlackboxMyCar