Viofo A329S 3CH review: A flagship three-channel dash cam for full coverage

The Viofo A329S is a three-channel dash cam system, featuring forward, rear, and interior cameras. This marks a departure from the standard A329, which only had two channels. The interior camera is a standout feature, recording infrared 2K video at 30 frames per second through a wide 210-degree fisheye lens. This provides an extensive field of view that could be beneficial for taxi drivers and others needing extra coverage.

The A329S also boasts dual Sony Starvis 2 imaging sensors for strong low-light performance, Wi-Fi 6 for connectivity, and the ability to record directly to portable SSDs up to 4TB.

Despite its premium price tag of $472, the Viofo A329S aims to deliver a high-end three-channel system that doesn't compromise on quality. The system offers 4K recording from the front-facing camera, 2K from the rear and interior cameras, and HDR support on all three cameras. The system supports GPS, a 2.4-inch display, and operates with a battery, though parking mode requires hardwiring.

Visually, the A329S resembles other Viofo dash cams with a small display, five buttons, a microSD card slot, and connectors for the rear and interior cameras. It also includes a polarising lens filter for the front camera, a 12-volt lighter socket power adapter, an installation tool, and windscreen static stickers. However, potential users should be aware of specific installation constraints, particularly for right-hand-drive countries.

The dash cam connects to secondary cameras via coaxial cables rather than USB, a design choice that makes the cables thinner and easier to manage.

In terms of performance, the Viofo A329S delivers on its promise of high-quality video. Its front camera provides excellent 4K footage with minimal grainy noise, even in low light, while the rear camera captures passable daytime footage with a wide field of view. The interior camera, with its infrared capabilities and wide 210-degree lens, offers unique perspective, potentially capturing evidence of side impacts or altercations.

However, the video quality from this camera is less impressive than the front camera, though still superior to many other dash cams. Overall, the Viofo A329S is a robust, feature-packed dash cam system that may be worth the investment for specific use cases, particularly for professional drivers.