VIOFO A329S vs ROVE R2-4K Dash Cam: Flagship 4K 60fps or Proven 4K 30fps?

The VIOFO A329S dash cam and the ROVE R2-4K dash cam are both 4K front cameras with a 2.4-inch screen, built-in Wi-Fi 6, and a supercapacitor instead of a battery — but they come from different generations of dash cam design. The VIOFO A329S dash cam is VIOFO’s flagship: a Sony STARVIS 2 sensor recording 4K at 60fps, a third channel for the cabin in the 3CH version, and external SSD support. The ROVE R2-4K dash cam is the older, proven single-channel camera: a Sony IMX335 sensor recording 2160p at 30fps and built-in GPS. The VIOFO A119 Mini 2 is the 2K reference point.

The short answer: buy the A329S if you want the sharpest video in this comparison, a cabin channel, and the newest sensor — it records 4K at 60fps. Buy the ROVE R2-4K dash cam if you want built-in GPS and a simpler single-channel camera — but confirm a live offer is showing first, because the freshest listing crawls are months old. If the ROVE listing shows no offer, buy the A329S or the VIOFO A119 Mini 2, which beats both of them on value after dark.

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Quick Pick: VIOFO A329S Dash Cam vs ROVE R2-4K Dash Cam

What Each Camera Is

The VIOFO A329S dash cam is VIOFO’s flagship front camera, sold as a 2CH set with a front and a rear camera, and as a 3CH set that adds a cabin camera. The front unit has a 2.4-inch screen, a Sony STARVIS 2 IMX678 8MP sensor, a 140-degree lens, and a GPS mount, and it records 4K at 60fps with HDR off. The rear camera uses a Sony STARVIS 2 IMX675 sensor and records 2K at 30fps with HDR. The A329S is an update to the A329, and the honest version of that update is the third channel: 4K 60fps, Wi-Fi 6, external SSD support, and Low Power Impact Detection were already on the A329, so they are features the A329S keeps, not upgrades it adds.

The ROVE R2-4K dash cam is the single-channel front camera from ROVE’s original R2-4K line: a rectangular unit with a 2.4-inch IPS screen, a Sony IMX335 5MP sensor, built-in Wi-Fi 6 and GPS, and a supercapacitor instead of a battery. It records 2160p video, shows live speed and compass on its screen, and mounts on a rotating suction mount. Our ROVE R2-4K Dual review covers the two-channel version, which adds a rear camera and a 128GB card; the single-channel ROVE R2-4K dash cam here is a different listing. The VIOFO A119 Mini 2, covered in our VIOFO A119 Mini 2 dash cam review, is the 2K reference point in this comparison: a smaller camera with a 1.5-inch screen and a STARVIS 2 sensor.

Video Quality: 4K 60fps vs 4K 30fps

The headline gap is frame rate, not resolution. The VIOFO A329S dash cam records 4K (3840×2160) at 60fps on the front camera, built on an 8MP Sony STARVIS 2 IMX678 sensor — so the 4K is native, and the 60fps is real. The ROVE R2-4K dash cam lists 2160p (3840×2160) at 30fps, built on a 5MP Sony IMX335 sensor — so its 4K headline is upscaled from a smaller sensor. Twice the frames per second is a real gap for moving plates: at 60fps the VIOFO A329S dash cam captures twice as many moments per second, and a plate that blurs at 30fps can still read at 60fps.

Two honest caveats sit under that gap. First, the VIOFO A329S dash cam records 4K at 60fps with HDR off — switch HDR on and the front drops to 4K at 30fps — and with all three channels connected in the 3CH set, the front records at 4K 30fps, because the processor divides its work across three streams. Second, neither camera’s 4K fixes bad light on its own; the sensor and the HDR setting matter as much as the pixel count, which is why the night section below matters. For daytime detail on a clear road, the A329S wins this section outright.

VIOFO A329S on Amazon: 2CH set, 4K 60fps front, 2K rear, 2.4-inch screen, Wi-Fi 6, SSD support, supercapacitor, card not included.

Night Vision: STARVIS 2 vs Super Night Vision

At night the sensor generation matters more than the resolution headline. The VIOFO A329S dash cam uses Sony STARVIS 2 sensors on both channels — the IMX678 in front and the IMX675 at the rear — and STARVIS 2 is Sony’s low-light sensor family, built for cleaner footage with less noise in the dark. The ROVE R2-4K dash cam uses ROVE’s Super Night Vision, built on the older Sony IMX335 sensor with a six-glass lens; the listing description names an F1.8 aperture while the feature bullets name F1.5, so the aperture figure is not settled. Our best dash cam for night driving guide explains why sensor size and HDR handling decide night footage more than the 4K label does.

The practical read is simple: the VIOFO A329S dash cam should hold detail further into the dark, because its sensor is a generation newer and its HDR runs on both channels. The ROVE R2-4K dash cam is no night-blind camera — its Super Night Vision framing and wide aperture are real selling points — but it is a 5MP sensor from an older generation, and no listing claim closes that gap. The honest 60fps night camera here is the VIOFO A119 Mini 2, which records native 2K at 60fps — switching on its HDR drops it to 30fps. For night driving on unlit roads, the A329S is the pick in this comparison.

Screens and Size: Two 2.4-Inch Screens

This is the rare head-to-head where the screens tie. The VIOFO A329S dash cam has a 2.4-inch screen for on-camera playback and settings, and you can also set it up and review footage from the VIOFO app on your phone. The ROVE R2-4K dash cam has a 2.4-inch IPS screen that shows live speed and compass from its built-in GPS, alongside playback and settings. Neither camera hides behind app-only control, and neither forces you to pull out your phone to check a clip at the roadside.

The bodies around those screens differ. The VIOFO A329S dash cam front unit measures 2.4 inches wide, 3.9 inches tall, and 1.7 inches deep, and it tucks behind the rearview mirror with its GPS mount; the rear and cabin cameras are separate small units with their own mounts. The ROVE R2-4K dash cam is a single rectangular unit on a rotating suction mount, so it is the simpler install — one camera, one mount, no cables to run to the rear window. If you want the smallest camera with a screen, the VIOFO A119 Mini 2 has a 1.5-inch screen in a smaller body than either camera here.

Channels: Three Channels vs One

Channels are the VIOFO A329S dash cam’s real advantage in this comparison. The 2CH set records front and rear; the 3CH set adds a third channel, a 2K fisheye cabin camera with a 210-degree field of view and four infrared LEDs, which covers the cabin and the view through both side windows. That cabin channel is the A329S’s actual differentiator over the A329 — the A329 had no cabin camera — and it is the feature that matters most to rideshare drivers and anyone who wants the inside of the car on record as well as the road ahead.

The ROVE R2-4K dash cam is a single-channel, front-only camera: it records the road ahead and nothing else. For rear coverage you step up to the ROVE R2-4K Dual, covered in our ROVE R2-4K Dual review, which adds a rear camera — but that is a different listing from the single-channel ROVE R2-4K dash cam compared here. One trade-off to know before buying the 3CH set: with all three channels connected, the VIOFO A329S dash cam front camera records at 4K 30fps, not 4K 60fps, because the processor divides its work across three streams. Buy the 2CH set if 60fps matters more to you than cabin coverage.

Parking Mode: Hybrid Parking vs Motion Detection

Both cameras watch the car while it is parked, but they do it differently. The VIOFO A329S dash cam has hybrid parking recording alongside time-lapse, low-bitrate, and buffered auto event detection modes, plus Low Power Impact Detection, which keeps watching for impacts while parked without draining the battery. Parking recording needs a hardwire kit or an external battery pack — neither is included in the box — and the camera runs on a supercapacitor, not a battery, so it handles heat in a parked car better than a battery camera would.

The ROVE R2-4K dash cam has parking mode with motion detection, a G-sensor, and emergency video lock, and it also runs on a built-in supercapacitor. It needs its hardwire kit for parking recording, and that kit is a separate purchase — the article names no hardwire-kit ASIN for the ROVE, so check the listing for the kit ROVE specifies for this exact model. The VIOFO A329S dash cam takes this section on breadth: more parking modes, impact detection tuned for low power draw, and the cabin channel watching the inside of the car while it sits. The ROVE R2-4K dash cam takes it on simplicity: one motion-detection mode, one kit, nothing to configure.

ROVE R2-4K Dash Cam on Amazon: single-channel front-only, 2160p, 2.4-inch screen, built-in Wi-Fi 6 and GPS, supercapacitor, card not included.

App, Wi-Fi, GPS, and Voice Control

Both cameras connect over Wi-Fi 6, and both have an app for viewing and managing recordings on your phone. The VIOFO A329S dash cam uses the VIOFO app with dual-band Wi-Fi 6, and its GPS mount logs location and speed into the footage. The ROVE R2-4K dash cam uses the ROVE app with built-in Wi-Fi 6 and built-in GPS, and it shows live speed and compass on its 2.4-inch screen and plots your route on Google Maps through the app. On connectivity the two cameras are evenly matched — Wi-Fi 6 on both sides, GPS on both sides.

The split is voice control and GPS detail. The VIOFO A329S dash cam has smart voice control, so you can save a clip or take a still without touching the camera, and it adds USB 3.0 direct transfer and external SSD support up to 4TB for moving large 4K files off the camera. The ROVE R2-4K dash cam has voice guidance and live speed on screen, plus over-the-air firmware updates through the app. Neither camera here is app-only — both have a screen — so the app is a convenience on both sides, not a requirement. The A329S edges this section on transfer speed and storage options; the ROVE R2-4K dash cam edges it on live GPS readouts on screen.

Storage: Cards and What Is in the Box

Storage is where the VIOFO A329S dash cam pulls clearly ahead. It takes a microSD card up to 512GB, and it also supports an external SSD up to 4TB — so a driver who records 4K at 60fps can move footage to a drive that holds weeks of video instead of swapping small cards. The ROVE R2-4K dash cam supports microSD cards up to 512GB, Class 10 U3 speed only, and no card is included in the box — ROVE recommends its own Ultimate microSD cards. A 4K camera without a card in the box needs a card bought alongside it, and the card must be U3 speed or 4K recording will stutter.

What is in the box differs by set. The VIOFO A329S dash cam 2CH set includes the front camera with GPS mount and the rear camera with its cable; the 3CH set adds the interior fisheye camera with its cable. No microSD card is included at the standard edition level. The ROVE R2-4K dash cam box has the single front camera, its suction mount, a spare 3M sticky mount, and a car charger; the card is the missing piece. Buy the card with the camera either way, and buy U3 speed — a slower card is the most common reason a 4K dash cam drops frames.

The Availability Flag: ROVE R2-4K Live Offer Unconfirmed

Read this section before ordering the ROVE. The ROVE R2-4K dash cam’s identity is verified — the listing shows ASIN B074JT3698, model R2-4K, and the full spec sheet — but the freshest listing crawls are months old and show no live offer, and no fresh live-offer evidence was seen while drafting this comparison. That does not mean the camera is discontinued: ROVE still lists the R2-4K line, and the newer ROVE R2-4K PRO is a separate model. It means the listing for this exact ASIN could not be confirmed as selling at draft time.

The VIOFO A329S dash cam side has no such flag: its listing shows fresh in-stock evidence and no no-offer wording was seen. The honest move is to check the ROVE listing for a live offer before ordering, and if it shows no offer, buy the A329S or the VIOFO A119 Mini 2 instead — both have verified listings. Do not buy the ROVE R2-4K PRO as a silent substitute: it is a different camera with a different sensor setup, and it is not the camera this comparison tested against the A329S.

ROVE R2-4K Dash Cam on Amazon: check the listing for a live offer before ordering — the freshest crawls are months old and show no live offer.

The Verdict

The VIOFO A329S dash cam wins this comparison on video, channels, parking, and storage: native 4K at 60fps from a STARVIS 2 sensor, a cabin channel in the 3CH set, hybrid parking recording with Low Power Impact Detection, and external SSD support up to 4TB. The ROVE R2-4K dash cam wins on simplicity and on live GPS readouts: built-in GPS with speed and compass on its 2.4-inch screen, one camera, one mount, and a proven single-channel design. Drivers who want the sharpest footage and cabin coverage should buy the A329S; drivers who want built-in GPS and the simplest install should buy the ROVE R2-4K dash cam — but only if its listing shows a live offer.

The third camera in this comparison, the VIOFO A119 Mini 2, is the pick for drivers who want 2K at 60fps after dark in the smallest body with a screen. It records native 2K at 60fps with a STARVIS 2 sensor and a 1.5-inch screen, and it beats both cameras here on size. Whichever camera you choose, buy the microSD card with it — U3 speed, up to 512GB — and confirm the listing shows a live offer before you order.

VIOFO A329S on Amazon: 2CH set, 4K 60fps front, 2K rear, 2.4-inch screen, Wi-Fi 6, SSD support, supercapacitor, card not included.

Frequently Asked Questions

Which is better, the VIOFO A329S or the ROVE R2-4K?

The VIOFO A329S dash cam is the better camera on video, channels, parking, and storage: native 4K at 60fps from a STARVIS 2 sensor, a cabin channel in the 3CH set, hybrid parking recording, and external SSD support up to 4TB. The ROVE R2-4K dash cam wins only on simplicity and live GPS readouts: built-in GPS with speed and compass on its 2.4-inch screen, one camera, and one mount. If you want the sharpest video and cabin coverage, buy the A329S; if you want the simplest install with GPS, buy the ROVE — but only if its listing shows a live offer.

Does the VIOFO A329S have a screen?

Yes. The VIOFO A329S dash cam has a 2.4-inch screen for on-camera playback and settings, and you can also use the VIOFO app. The ROVE R2-4K dash cam also has a 2.4-inch screen, and the VIOFO A119 Mini 2 has a 1.5-inch screen per its listing.

Does the ROVE R2-4K record in real 4K?

The ROVE R2-4K dash cam lists 2160p at 30fps, but it is built on a 5MP Sony IMX335 sensor, so its 4K headline is upscaled from a smaller sensor. The VIOFO A329S dash cam records native 4K at 60fps from an 8MP Sony STARVIS 2 IMX678 sensor, so its 4K is native. For daytime detail, the VIOFO A329S dash cam is the sharper camera.

Which dash cam is better at night, the A329S or the R2-4K?

The VIOFO A329S dash cam should hold detail further into the dark, because it uses Sony STARVIS 2 sensors — the IMX678 in front and the IMX675 at the rear — while the ROVE R2-4K dash cam uses ROVE’s Super Night Vision on the older Sony IMX335 sensor. No hands-on night test was run for this comparison; the call is made on sensor generation, which is the factor our best dash cam for night driving guide treats as decisive.

Is the ROVE R2-4K still available?

Its identity is verified — the listing shows ASIN B074JT3698 and model R2-4K — but the freshest listing crawls are months old and show no live offer, and no fresh live-offer evidence was seen while drafting. That does not mean the camera is discontinued. Confirm a live offer is showing on the listing before you order, and if it shows no offer, buy the VIOFO A329S dash cam or the VIOFO A119 Mini 2 instead.

Do either of these dash cams record the cabin or the rear view?

The VIOFO A329S dash cam does, in its 3CH set: a 2K fisheye cabin camera with a 210-degree field of view and four infrared LEDs, plus a 2K rear camera. The 2CH set records front and rear only. The ROVE R2-4K dash cam is single-channel and front-only; for rear coverage you need the ROVE R2-4K Dual, which is a different listing.