VIOFO A139 Pro vs. Campark DC40 3-Channel Dash Cam Comparison Review

Campark Electronics' DC40 dash cam is the Chinese company's entry into the 4K triple channel section. While it primarily advertises using Sony STARVIS sensors, its front camera is equipped with an 8MP Omnivision sensor that captures up to 2160p at 30 frames per second when recording alone.

Moving on to the in-cabin and rear cameras, these are where the 2MP Sony STARVIS IMX335 sensors are used, capturing footage up to Full-HD 1080P @ 30fps. Note that when all channels are working, the Campark DC40’s video resolution drops to 1440p. The DC40 uses a 170° front camera, a 120° inside camera, and a 140° rear camera to record all directions around your car at the same time, and the interior camera lens is vertically rotatable by 45 degrees.

Now let’s see how much of a pro the A139 Pro is compared to the DC40.

The A139 Pro is VIOFO’s latest addition to its 4K collection, which also includes the A129 Pro. Safe to say, it is the brand’s flagship dash cam, and the first-ever in the industry to use the all-new Sony STARVIS 2 image technology.

Just how much Campark boasts using a Sony STARVIS sensor (although only applicable for its 2MP IMX335 secondary cameras), VIOFO also emphasizes how its video resolution is clearer and crisper due to the Sony STARVIS 2 tech that uses IMX678.

Talking about its field of view, the A139 Pro also supports up to 4K UHD 3840 x 2160P for its front at 140-degrees and Full HD for its rear and interior at 170-degrees. When using the A139 Pro in a 3-Channel configuration, the image quality can be set to 1600p at 30fps or 2160p at 24fps, both of which are 4K.

Best of all, the VIOFO A139 Pro includes a free CPL filter that also works best with the BlackboxMyCar Aqua Shield - an accessory we highly recommend to keep your dash cam view guarded from glare, rain, dust, and other elements that may ruin your footage.

Quite similar to how the Vantrue N4 was built, the Campark DC40’s main unit includes the front and interior camera which can be rotated for up to 45-degrees sized at 7.3 x 4.6 x 2.48 inches - which is quite large for a dash cam. It also carries a 2.4-inch IPS color display that is used for video playback and adjusting your camera settings. On top of that, the main unit is the connection for the included suction cup mount, causing the camera to hang low off the windshield - which can be distracting for some drivers.

And distraction is something VIOFO does not want its users to experience. With space-saving dimensions of 4.4 x 2.3 x 1.5 inches, the main unit of the A139 Pro has no screen, allowing for a more seamless and discrete installation. Its low profile allows it to blend in much better with your windshield, making it less distracting for drivers and less appealing to thieves. Even the secondary cameras were designed to be discrete, and the A139 Pro's front 4K camera has a lens that can be rotated up to 300° for better positioning and suitability for all car types. Its IR camera isn't attached to the main body, allowing for more mounting options and flexible angles.

The Campark DC40 uses a suction cup, whereas the VIOFO A139 Pro includes static stickers as an adhesive mount in every package. A suction cup mount can become loose in high heat situations, and can lead to shakier videos than an adhesive mount. The Campark DC40 employs mini USB cables, while the A139 Pro employs an ultra-thin 2.8mm wide coaxial cable and miniature connectors, making it easier to install and run along the trim of your vehicle - particularly in European vehicles with extremely tight trims.

If you are to leave your car unattended but still want to monitor what’s happening in front, at the rear, and inside of your vehicle, both the Campark DC40 and the VIOFO A139 Pro can capture what’s happening with their parking mode capabilities.

Aside from its Parking Mode capabilities, the Campark DC40 has a G-sensor and Motion Recording, triggering parking mode off of the vehicle’s motion, just like how BlackVue does it.

On the other hand, VIOFO offers more advanced parking mode capabilities with Auto Event Detection, Time Lapse, and Low Bitrate recordings. To activate these features, the Campark DC40 and A139 Pro must be connected through your car’s fuse box through a separate hardwiring kit. For the A139 Pro, you can use VIOFO’s Type-C HK3-C and HK4 ACC hardwirings.

If you want to extend your parking modes, we recommend you to use a dedicated dash cam battery pack. Both the DC40 and the VIOFO A139 Pro are compatible with battery packs like the BlackboxMyCar PowerCell 8 - which we highly recommend to maximize security and peace of mind, even when your car is unattended for longer periods of time.

As the Campark DC40 dash cam was only released in 2021, you may think that it’s a modern dash cam with innovative connectivity features. However, in reality, this 4K dash cam misses a lot of what makes the dash cam user experience convenient. It doesn’t have GPS, it doesn’t have Wi-Fi, and it doesn’t have a dedicated mobile app.

So we hope you don't mind squinting frequently, because the 2.4-inch screen built into the main unit of the Campark DC40 will be your go-to if you want to watch your videos instantly. If you want to review your footage on a bigger screen, you can pull out your microSD card and plug it to your computer. Note that the maximum SD card capacity supported by the Campark DC40 is 256GB, however, we encountered some user issues regarding playback.

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