Viofo A329S.

The Gavler Review.

Viofo A329S Review: True 4K 60fps, If You Actually Need It

The Viofo A329S sits at number two on our Best Dashcams list with a 9.2 — the dashcam for drivers who want the most footage, not just the sharpest. True 4K at 60fps, dual Sony STARVIS 2 sensors, and a genuinely useful external-SSD option that banks weeks of continuous recording set it apart from nearly everything else in the category. Buy it if 60fps smoothness or long-retention storage actually matters to your driving. If you mostly commute in the city, both of those headline features are overkill, and Viofo's own cheaper A229 Pro delivers most of the same image quality for meaningfully less.

What it actually is

The A329S is Viofo's flagship and the replacement for the now-discontinued A329, built around a dual Sony STARVIS 2 sensor pairing: an 8-megapixel IMX678 up front shooting true 4K at 60fps, and a 5-megapixel IMX675 at the rear recording 2K at 30fps. It ships in single-, dual-, and triple-channel kits — the three-camera version adds a 210-degree fisheye cabin camera that also catches the car's side peripheries, and a multiplex mode can stitch all the angles into a single file for insurers, though the rear and cabin feeds drop to 1080p when that mode is active.

The higher front frame rate is the car's real differentiator: 60fps makes fast-moving scenes noticeably smoother and easier to read frame by frame, which matters most on highways where events unfold quickly. Reviewers are consistent that it's more of a nice-to-have than a necessity for city driving, and there's a real trade-off baked in — you can't run 60fps and HDR simultaneously, so drop to 4K/30 with HDR active if better-balanced light matters more to you than smoothness in a given situation.

In use

Tom's Guide named the A329S an Editor's Choice and was direct about why: "The A329S delivers superlative image recording across practically 360 degrees thanks to its triple-camera system," adding that it "replaces the A329 as one of the best overall dash cams I've reviewed." BlackboxMyCar's assessment leans on the headline spec directly: "The first dash cam that offers 4K @ 60FPS," and calls it "a top-tier choice for users who value video clarity, extensive storage, and advanced connectivity options."

The storage story is where the A329S genuinely stands apart from the category. It's among the first dashcams to accept an external SSD over its USB-C port, up to 4TB — roughly 46 days of continuous 4K recording before it loops and starts overwriting the oldest footage. That's a meaningfully longer retention window than the microSD-based storage most dashcams rely on, which typically loops in a matter of days at 4K resolution. Transfers keep pace too: up to 55MB/s on a wired USB 3.0 connection, plus Wi-Fi 6 for fast phone offloads, and an ultra-precise GPS module pulling from four satellite systems — GPS, BeiDou, Galileo, and GLONASS — for accurate location, speed, and time overlays on the footage itself.

Where it shines

• True 4K at 60fps, a genuine first for the category. Fast-moving highway scenes are noticeably smoother and easier to read frame by frame than on any 30fps competitor, which matters when footage becomes evidence.
• Up to 4TB of external SSD storage. Roughly 46 days of continuous 4K recording before overwriting is a different class of retention than the microSD cards most dashcams rely on, and the USB-C connection makes adding storage simple.
• Four-satellite-system GPS plus Wi-Fi 6 transfers. Accurate location and speed overlays strengthen any footage used as evidence, and 55MB/s wired transfers mean large 4K files don't sit in a slow offload queue.

The trade-offs — who should skip it

BlackboxMyCar's and Tom's Guide's praise is real, but the honest caveats in Gavler's own scoring — a 92 expert consensus against an 88 community rating — point at specific, recurring friction points.

• You mostly drive in the city, not on highways. Reviewers are consistent that 60fps is "a nice-to-have unless you spend real time on highways" — city driving rarely benefits enough to justify the price premium over a 30fps dashcam.
• You don't need weeks of continuous storage. The 4TB SSD option is a genuine engineering achievement, but it's solving a problem most drivers don't have. If your dashcam just needs to catch the occasional incident on a standard microSD card, you're paying for capacity you won't use.
• Price is a real factor. At roughly $470 to $500 for the dual-channel kit, the A329S is one of the priciest consumer dashcams available. Viofo's own A229 Pro — the number-one product on this same list — delivers similar image quality for meaningfully less.
• You want parking mode out of the box. The advanced buffered parking mode needs Viofo's HK4 hardwire kit, which isn't included and has to be purchased and installed separately.

How it compares

The most important comparison is internal: the Viofo A229 Pro sits at number one on this same list, and Gavler's own scoreNote data is direct about the relationship between the two — "the A229 Pro is better value for most users." The A329S wins specifically on 60fps smoothness, SSD-scale storage, and Wi-Fi 6 transfer speed; the A229 Pro wins on price and delivers image quality close enough that most drivers won't notice the gap. Against Nextbase's competing flagship, the Nextbase 622GW, the A329S's dual STARVIS 2 sensor pairing and external SSD option give it an edge in raw capability, though Nextbase counters with its own cloud-connectivity ecosystem that some drivers may prioritize instead.

The Gavler verdict

A 9.2 for a dashcam that does something genuinely new in the category — true 4K at 60fps paired with external SSD storage that actually changes how long footage sticks around before it's overwritten. Tom's Guide's Editor's Choice and BlackboxMyCar's top-pick framing both reflect real, substantiated engineering rather than a marketing headline. The honest question isn't whether the A329S is good — it clearly is — it's whether you're the driver who needs what it does differently from Viofo's own cheaper A229 Pro. If you drive highways often, transfer large files regularly, or want weeks of continuous 4K on hand, buy the A329S. If you mostly commute, save the difference and buy the A229 Pro instead.

Common Questions

Is the Viofo A329S worth it in 2026?

For drivers who specifically want 60fps smoothness or long-retention SSD storage, yes. It ranks second on Gavler's Best Dashcams list with a 9.2, Tom's Guide named it an Editor's Choice, and BlackboxMyCar calls it a top pick for clarity, storage, and connectivity as the first dashcam to offer true 4K at 60fps. If you mostly commute in the city, the 60fps and 4TB SSD capacity are more than most drivers need — Viofo's own cheaper A229 Pro delivers similar image quality for less.

Viofo A329S or Viofo A229 Pro?

Buy the A229 Pro unless you specifically need true 4K 60fps footage or regularly transfer large files and want Wi-Fi 6 speeds and external SSD storage. The A329S is Viofo's flagship step-up and costs meaningfully more — around $470 to $500 for the dual-channel kit versus the A229 Pro's $360 — and the wider testing consensus, echoed in Gavler's own data, is that the A229 Pro is the better value for most buyers.

Can the Viofo A329S really use an external SSD?

Yes — it's among the first dashcams to accept an external SSD over its USB-C port, up to 4TB, which works out to roughly 46 days of continuous 4K recording before it loops and overwrites. Transfers are fast too: up to 55MB/s over a wired USB 3.0 connection, plus Wi-Fi 6 for phone offloads.

Does the Viofo A329S need extra hardware for parking mode?

For the advanced buffered parking mode — 15 seconds before an event and 30 seconds after — yes, it requires Viofo's HK4 hardwire kit, which is not included in the box and needs to be purchased and installed separately.