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Viofo A329S 2CH — 2-channel 2160p dash cam
Viofo

Viofo A329S 2CH

No rating shown: we have no owner rating for this camera from a source we can cite. Why

4K front60fps frontSupercapacitor2K+ rearVoice control5 GHz Wi-Fi25+ px/°

The A329S is Viofo's current flagship two-channel camera and the interesting part is not the 4K60 front channel, which it shares with the A329, but what it does when the engine is off. Alongside the usual buffered, time-lapse and low-bitrate parking modes it adds a low-power impact-detection mode that Viofo rates at under 40mA at 12.6V - roughly a twentieth of what continuous buffered recording draws - and wakes all channels inside two seconds when the G-sensor fires. That turns parking surveillance from something measured in hours on a car battery into something measured in days, which is the single most common reason people give up on parking mode. The front camera is an 8MP Sony STARVIS 2 IMX678 at 3840x2160/60, f/1.8, 140 degrees; the rear is a 1440p IMX675 at 160 degrees. Both channels run HDR. External SSD support to 4TB and Wi-Fi 6 carry over from the A329, and the HK6 hardwire kit is required for the hybrid parking behaviour.

Approx. price
~$460
Front px/°
27.4
Plate-legible at distance
Hot car
Supercapacitor
Supercapacitor, rated to 149°F
Parking tier
Buffered
Hardwire kit optional
Best for

Street parking, where the camera has to still be watching after three days without draining the car.

The description and the pros and cons above are written from published specifications, not from owner reports. Owner sentiment, where we have it, is in its own section below.

What the numbers mean here

The front camera records 3,840 horizontal pixels across a published 140-degree field of view, which is 27.4 pixels per degree — plate-legible at distance. The rear channel manages 16, so it is the less detailed of the two. How this is calculated, and what it does not tell you.

It runs on a supercapacitor rather than a lithium cell, so there is no battery to swell in a car parked in summer sun — the classic way a windshield-mounted camera dies. The maker publishes an operating range of -4°F to 149°F. Supercapacitors and heat.

Keeps a rolling buffer, so the seconds before an impact are saved as well as the impact itself. It is the most useful parking mode and the hungriest. The hardwire kit is a separate purchase, which is the line item people forget when budgeting. What each parking mode records.

Specifications

Manufacturer-published figures, recorded from Viofo’s own product page and a specialist retailer’s spec table. Fields the maker does not publish are omitted rather than guessed.

Type
Dual-channel
Channels
2
Front sensor
Sony STARVIS 2 IMX678
Front field of view
140° (as published)
Rear sensor
Sony STARVIS 2 IMX675
HDR
HDR
Power cell
Supercapacitor
Operating temperature
-4°F to 149°F
Parking modes
buffered, time-lapse, low-bitrate, motion
Hardwire kit
optional
GPS
built-in
Wi-Fi
5 GHz
Max storage
512GB microSD
CPL filter
optional
Screen
2.4-inch
Voice control
Yes
Mount
adhesive
Release year
2026

Features

  • Front 3840x2160 at 60fps HDR, rear 1440p HDR
  • Low-power impact-detection parking mode drawing under 40mA at 12.6V
  • Wakes all channels and records within two seconds of an impact
  • Wi-Fi 6, external SSD support to 4TB, microSD to 512GB
  • Sony STARVIS 2 IMX678 front and IMX675 rear
  • Supercapacitor, -4 to 149 degrees Fahrenheit
  • Built-in GPS, Bluetooth, voice control, 2.4-inch screen

Where it is strong

  • The low-power parking mode is the only one here that measures standby in days rather than hours on a car battery
  • 4K at 60fps on the front channel with a 1440p STARVIS 2 rear rather than a 1080p module
  • SSD support plus Wi-Fi 6, which together make 4K60 storage and retrieval actually workable
  • The same supercapacitor and 149F ceiling as Viofo's ninety-dollar cameras, unchanged at the top of the range
  • Shares the A329 module ecosystem, so a rear or cabin camera can be added later

Where it gives way

  • Among the most expensive two-channel cameras here, and a large jump over the A229 Pro for parking behaviour most garage-parked cars never use
  • Low-power parking needs the specific HK6 hardwire kit, not the HK4 the older Viofos use
  • Two high-bitrate channels on a 512GB card leave a short loop unless you add the SSD
  • The two-second wake means the moment of impact itself is not always in frame - the buffered mode covers that, at full power draw

What owners say

Summarised from public owner discussion. Nothing here is our own testing.

The A329S is bought by people who have already been through a camera failure elsewhere and are willing to pay for the current flagship. The features they cite are the SSD support, Wi-Fi 6 and the extra parking modes, and the mindset is upgrade-and-be-done.

Everything odd reported so far has been software rather than hardware. The 1fps super-night-vision parking mode has been seen switching itself to 3fps with no explanation, and station mode - joining the camera to an existing Wi-Fi network for remote access rather than running its own hotspot - does not work reliably for the owners who have tried it. Both are the kind of thing firmware fixes, but they are live today.

The rear camera is the other recurring theme, and the criticism is more interesting than it first sounds: owners argue the wide rear lens spreads its pixels far enough that it makes a plate harder to read, not easier. That is the same arithmetic this site applies across the catalog, arrived at independently by people looking at their own footage.

What owners like

  • Owners replacing cameras that failed from another premium brand name this as the model they moved to
  • SSD support and Wi-Fi 6 both get cited as the reasons to pay the premium over the A229 Pro
  • Owners arrive already planning heat mitigation, and the supercapacitor plus a thermal-buffer adhesive mount is the setup they settle on
  • The extra parking modes are the feature buyers name when justifying the price to themselves

Common complaints

  • Owners report the 1fps super-night-vision parking option silently switching itself to 3fps, with no documented reason
  • The rear camera has a reputation among owners as the weak half of the package, and some argue the wide rear lens makes plates harder rather than easier to read
  • Station mode - having the camera join a home or car Wi-Fi network for remote access - does not behave predictably for owners who try it
  • Owners still treat heat as the main threat to the camera's life despite the supercapacitor, and take extra measures on their own initiative

What owners of the Viofo A329S 2CH ask

Why does super night vision switch from 1fps to 3fps?
Owners have reported selecting 1fps for time-lapse parking and finding the camera running at 3fps instead, including when recording to an external SSD. Viofo does not document a limitation here. Until firmware addresses it, plan on 3fps when sizing storage for a long parking session.
Is the rear camera good enough?
It is a 1440p Sony STARVIS 2 module, which is better than most rear cameras here, but owners note that its 160-degree lens spreads those pixels thinly - about 16 pixels per degree against the front camera's 27. If the rear channel is your priority, a camera with a narrower rear lens will out-resolve it.
What can I do about heat?
Owners who care about this use a thermal-buffer adhesive mount to separate the camera body from hot glass, park in shade where possible and use a windshield sunshade. The supercapacitor already removes the worst failure mode - a swelling lithium cell - but heat still shortens electronics life.
Can I monitor it remotely over my own Wi-Fi?
Station mode exists but owners trying to use it for remote monitoring report unpredictable behaviour, with the camera not staying joined to the network. There is no LTE option on this model, so genuine remote monitoring is not something to buy this camera for.

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Front px/°
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