VIOFO A329S vs A229 Ultra: 4K60 or Dual 4K?

The VIOFO A329S 2CH and the VIOFO A229 Ultra 2CH use the same 4K front sensor, according to VIOFO, so the real choice is everything around it. Choose the VIOFO A329S dash cam for a 60fps front option, low-power parking modes, SSD recording and Wi-Fi 6. Choose the VIOFO A229 Ultra dash cam for a true 4K rear camera with HDR on both channels.

In a hurry?

• VIOFO A329S 2CH: for open-road drivers who want 60fps at the front, long parking sessions on low power, and the option to record to an SSD.
• VIOFO A229 Ultra 2CH: for drivers who want 4K detail behind them as well as ahead, with HDR on at full resolution front and rear. The VIOFO A229 Ultra 3CH dash cam adds a 1080p infrared fisheye cabin camera and keeps the front and rear at 4K 30fps.
• Need the cabin recorded too? The VIOFO A329S 3CH dash cam adds a 2K infrared cabin camera, with the front at 4K 30fps while all three cameras record. Skip the rear and the VIOFO A329S 2CH IR dash cam records front and cabin, with the front at up to 4K 60fps.
• Rear window blocked? The VIOFO A329SW dash cam puts a 2K IP67 rear camera outside the car, and the A229 Ultra-W does the same with a 4K rear.

These two are a fair match. VIOFO calls the A329S its flagship, and calls the A229 Ultra its first dual 4K dash cam, an upgrade over the A229 Pro and Plus. Both use a supercapacitor, both take a microSD card up to 512GB, and both put an 8MP Sony STARVIS 2 IMX678 sensor at the front. They sit on different platforms, though, so the parking modes, rear cameras and accessories differ.

On this page: Specs side by side · The 60fps and HDR catch · Where the A329S wins · Where the Ultra wins · Adding a cabin camera · Storage · What neither does well · Australian conditions · Which to buy · FAQ

How do the A329S and A229 Ultra compare on paper?

Recording modes, parking modes, card limits and SSD support come from VIOFO's A329S Series and A229 Ultra manuals (version V26.01.09). Sensors, field of view, Wi-Fi, USB and the 4TB SSD limit come from VIOFO's product pages, and accessories from VIOFO's accessory listings. All were checked on 14 September 2026. We have not tested the two cameras side by side under identical conditions.

Does the A329S really record 4K at 60fps?

Yes, but only with HDR switched off. VIOFO's A329S manual says 4K 60fps is available only when HDR is disabled, and HDR is on by default. With HDR on, the A329S front records 4K at 30fps, the same as the A229 Ultra.

HDR (high dynamic range) balances a bright sky and dark shadows in the same frame. It helps in harsh Australian sun and at night under street lights. So the A329S gives you a choice the Ultra does not. You can have 60 frames a second, or you can have HDR at the front, but not both at once.

Adding the rear camera does not force the drop. VIOFO's manual lists 4K at 60fps front with 2K at 30fps rear as a two-channel option. Adding a third camera does, because the three-channel modes run the front at 4K 30fps.

Does 60fps help? More frames give you more chances to pause on a clear moment when a car crosses in front of you. Each frame's sharpness still depends on exposure and light, so 60fps is not a guaranteed sharper plate. We have not run a controlled plate test between these two cameras. Our guide to the A329S 60fps mode and settings covers how to switch between the two.

Where does the A329S win?

The A329S is the more flexible camera. It has more parking options, more storage options and faster transfers, plus the 60fps front mode.

• A 60fps front option with HDR off. The Ultra tops out at 30fps.
• Low-power parking. VIOFO lists Low Power Impact Detection and Hybrid parking on the A329S. In Low Power Impact Detection, the camera sleeps and wakes to record after a bump. The Ultra has no low-power mode.
• SSD recording. With VIOFO's SSD cable, the A329S can record to an external drive of up to 4TB instead of a card. VIOFO notes that low-power impact files still save to the microSD card, so you still need one.
• Wi-Fi 6 and USB 3.0 for quicker transfers to your phone, according to VIOFO.
• A wider rear view at 160°, against 140° on the Ultra.
• A 2K cabin camera and a possible telephoto path. The RCC360 cabin camera records 2K. VIOFO's A329S FAQ says you can add a telephoto camera later by loading the A329T firmware and fitting the RTC420. VIOFO's RTC420 listing says it suits the A329T series only, so confirm with VIOFO before you buy.
• Recognition. Tom's Guide gave the A329S 3-channel version its Editor's Choice badge and 4.5 out of 5 in December 2025. CNET names the A329S 3-channel its best premium dash cam, which is a list placement rather than an award.

Where does the A229 Ultra win?

On paper, the A229 Ultra is the stronger camera for the view behind you. It records a true 4K rear on the same 8MP sensor as the front, with HDR on at full resolution at both ends.

• A 4K rear camera. VIOFO lists the RNE800 rear with the 8MP IMX678, against the A329S's 2K rear on a smaller 5MP IMX675.
• HDR at 4K on both channels at once. On the A329S, front HDR means giving up 60fps. The Ultra has no such trade.
• More rear data. DashCamTalk testers, using units supplied by VIOFO, recorded a higher rear bitrate on the Ultra 2CH than on the A329S rear. Bitrate is how much detail the camera keeps each second. The A329S figure came from a three-channel setup, so this is not a like-for-like test.
• A 4K waterproof rear. The A229 Ultra-W puts a 4K IP67 camera outside the car. The A329SW's waterproof rear is 2K. IP67 means it is sealed against dust and handles rain and a car wash.
• Simpler parking setup. All three of its parking modes run on the HK4, with no voltage-based mode to configure.
• Recognition. We could not find an award or star rating for the A229 Ultra from Wirecutter, CNN Underscored, CNET, PCWorld, Tom's Guide or TechRadar. UK news site NationalWorld published a hands-on review of the 3-channel kit in January 2026, without a score.

What happens when you add a cabin camera?

On the A329S, adding a third camera drops the front from 4K 60fps to 4K 30fps. On the A229 Ultra, the front and rear stay at 4K 30fps and the cabin records 1080p.

VIOFO names its A329S 3-channel model 4K 30fps at the front, and the manual's three-channel modes match. If 60fps is the reason you want the A329S, decide on the cabin camera before you order. If a cabin camera is a firm yes, take the A329S 3CH knowing the front runs at 30fps. If it is a maybe, the 2CH keeps 60fps available today, and VIOFO lists the RCC360 cabin camera to add later.

The A229 Ultra 2CH takes the RNF210 fisheye cabin camera, and VIOFO says no firmware change is needed. If you want the cabin from day one, the A229 Ultra 3CH comes with a 1080p infrared fisheye cabin camera in the box. The RCC360 on the A329S records 2K, while the RNF210 records 1080p. On the Ultra, testers have reported the front bitrate varying with firmware and camera count, even though the resolution stays at 4K 30fps.

If you drive rideshare, check your state's rules on cabin cameras first. Victoria and Queensland restrict them for rideshare work, as we explain in our guide to dash cams for Uber drivers.

How much storage do they use?

Both cameras take a microSD card up to 512GB. Only the A329S can also record to an external SSD, up to 4TB.

VIOFO does not publish bitrates in megabits, so the best figures come from testers. Using units supplied by VIOFO, DashCamTalk testers recorded one-minute files that work out to roughly:

• A329S front only at 4K 60fps: about 38GB an hour.
• A229 Ultra 2CH, front and rear at 4K: between about 31GB and 41GB an hour at maximum quality, depending on firmware. That is roughly 12 to 16 hours on a 512GB card before the oldest files are overwritten.

The A329S tester also lists a 518MB one-minute file for a two-channel recording merged into one file, about 31GB an hour, but not the frame rate used, so treat it as a rough guide. VIOFO's own FAQ estimates 8 to 12 hours of dual 4K on a 256GB Ultra card. Either way, both are hungry cameras. Our VIOFO SD card guide explains which card to pair with them.

What does neither camera do well?

Both share some limits worth knowing before you choose.

• A 512GB microSD ceiling. The A329S's SSD option helps, but the Ultra has no way past it.
• 30fps at the rear. Neither records the rear camera at 60fps.
• Rear glass still matters. Tint, demister lines and dust cost detail, whether the rear is 2K or 4K.
• Heat. VIOFO lists an operating range of -20°C to 65°C for both, and its manuals advise switching the camera off if a parked cabin goes above 60°C.

A few field reports are worth knowing. On the A329S, a Canadian dash cam retailer reported on DashCamTalk in August 2025 that when Auto HDR switches HDR on or off at its set times, the camera reboots and misses 14 to 18 seconds of footage, and a reviewer agreed. That was before VIOFO's V2.0 firmware, and we have not confirmed whether it still happens. On the A229 Ultra, views on night rear footage are mixed. DashCamTalk's review notes rear plate capture depends on lighting, while one owner's two-month review found night plate capture good. These are anecdotal reports, not measured results.

Which suits Australian conditions better?

It depends on your car and where it parks.

Utes, vans and canopies. If there is no usable rear window, you want a waterproof rear camera outside. The A229 Ultra-W gives you a 4K outside rear. The A329SW gives you a 2K outside rear with the A329S front and parking modes.

Heavily tinted sedans and SUVs. A 4K rear behind dark privacy glass may not show its extra detail. An outside waterproof rear is often the better fix on either platform.

Cars that park outside all day. Low Power Impact Detection on the A329S keeps the camera mostly asleep while parked, and VIOFO states it draws under 40mA at 12.6V in that mode. Our A329S and HK6 power draw article covers low power mode in more detail.

Company cars and novated leases. VIOFO lists its OP100 OBD power cable for both the A329S series and the A229 series, so you can power parking mode without touching the fuse box. VIOFO says the OP100 is not compatible with hybrid or electric vehicles. On the A329S, Low Power Impact Detection needs the VIOFO HK6 hardwire kit, so the OP100 is not the route for that mode. We do not install cameras ourselves, but you can find an independent dash cam installer near you.

Should you buy the A329S or the A229 Ultra?

Choose the A329S 2CH if you drive open roads and want the 60fps front option, you park for long stretches and want low-power impact detection, or you want to record to an SSD.

Choose the A229 Ultra 2CH if you sit in heavy traffic and get tailgated often, your rear glass is clear, and you want 4K detail and HDR at both ends without juggling settings.

Choose neither if you want a 4K front but do not need a 4K rear or low-power parking. The A229 Pro sits below both in VIOFO's range, with a 4K front and 2K rear. We compare it in VIOFO A229 Plus vs Pro vs Ultra.

For more on each camera, read our VIOFO A329S review and A229 Ultra review, or browse the full range of VIOFO dash cams in Australia.

VIOFO A329S and A229 Ultra questions we get asked

What is the difference between the VIOFO A229 and A329?

They are separate VIOFO platforms. Comparing the A329S with the A229 Ultra, the A329S adds a 60fps front option, Wi-Fi 6, USB 3.0, SSD recording and low-power parking modes. The A229 Ultra adds a 4K rear camera with HDR on both channels. Both take microSD cards up to 512GB.

Does the VIOFO A329S have GPS?

Yes. VIOFO builds the GPS into the A329S mount, and lists it as supporting GPS, BeiDou, Galileo and GLONASS. It logs your speed and location with your footage. The A229 Ultra also has GPS in its mount.

Can the A329S record 4K 60fps with HDR on?

No. VIOFO's manual says 4K 60fps is available only when HDR is disabled. With HDR on, the front records 4K at 30fps. Adding a third camera also drops the front to 4K 30fps.

Do I need the HK6 hardwire kit for the A329S parking modes?

For Low Power Impact Detection, yes. The HK4 runs the standard parking modes (event detection, time-lapse and low bitrate) with a cut-off timer. The HK6 adds Low Power Impact Detection, voltage-based cut-off and the battery voltage readout.

Still deciding? Tell Michael or Harrison what you drive, where it parks and whether the rear camera needs to go outside, through our contact page. We will help you pick, no worries.

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Last reviewed: 14 September 2026. The sensor, chipset, rating and specification figures here come from the manufacturer's own published material rather than from controlled testing by us. If a specification, a feature or a claim on this page is wrong or has gone out of date, tell us and we will correct it.

Commercial disclosure: The Dash Cam Guys sells both the VIOFO A329S and the VIOFO A229 Ultra, so read this as a comparison of two cameras in our own range rather than an independent test of the front and rear dash cam market. No brand paid for, sponsored or supplied anything for this review. We buy the cameras we review out of our own stock, the same stock we sell. Specifications, including sensors, recording modes, parking modes and memory card limits, are VIOFO's own published figures and are manufacturer claims unless we say otherwise. Descriptions of how reviewers rate the footage are published opinion, not measurements. We have not run a controlled side-by-side test of the two cameras. If a specification, a feature or a claim on this page is wrong or has gone out of date, tell us and we will correct it.