The catch
VIOFO A329S 2CH
4K60 needs HDR off, while 4K30 is the HDR choice.
Side by side
VIOFO A329S 2CH vs Garmin Dash Cam X310: A329S records the rear road and X310 does without that cable and mount
Quick verdict
The first question is whether you need rear-road footage. The A329S 2CH comes with a 2K rear camera for the standard inside-window installation, next to its 4K front camera. The X310 records the front only, so there is no rear cable or mount, and it adds a 2.4-inch touchscreen and an integrated polarizer. Settle the recorded directions and controls you need before you think about extra storage.
Before you buy
Why, and what it costs you
Pick a front-frame size that fits the view you really need
Both A329S 2CH and Dash Cam X310 have the same 8.3-million-pixel front frame. Their included channel counts are 2 and 1, so look at coverage and the selected modes before the equal front label.
Where this comes from
3840 × 2160 = 8294400 pixels, and 3840 × 2160 = 8294400 pixels again. Only output dimensions are compared, not sensor size, shutter speed, compression or readable plate distance.
The catch
Garmin Dash Cam X310
Despite the premium price, it records the front only.
VIOFO A329S 2CH
- Why pick it
- You require a rear-road camera
- You want to retain footage on an external SSD. An A329S SSD driving archive needs a separately purchased compatible drive and VIOFO cable, suitable GPS-mount power, SSD selected and Privacy Mode off. One target records, and explicit card-to-SSD copying is a separate step. It does not create a simultaneous backup. Hybrid and Low Power Impact stay microSD-only. SSD capacity does not apply.
- The catch
- 4K60 needs HDR off, while 4K30 is the HDR choice.
Garmin Dash Cam X310
- Why pick it
- You’d rather skip routing a rear cable
- The integrated polarizer and touchscreen appeal to you
- The catch
- Despite the premium price, it records the front only.
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What this page compares
Before you pick a dash cam, weigh the A329S 2CH against the Dash Cam X310 on recorded views, card capacity, parking setup and clip review.
The first question is whether you need rear-road footage. The A329S 2CH comes with a 2K rear camera for the standard inside-window installation, next to its 4K front camera. The X310 records the front only, so there is no rear cable or mount, and it adds a 2.4-inch touchscreen and an integrated polarizer. Settle the recorded directions and controls you need before you think about extra storage.
Which one fits
Pick the situations that sound like you
A trip on which the directions recorded count for more than the headline 4K label
The A329S gives you 4K at the front plus 2K at the rear. The X310 records only the front, in 4K, on a touchscreen device. Decide if rear evidence is worth the extra cable and rear-window mount.
- VIOFO A329S 2CH
- Depends
- Garmin Dash Cam X310
- Depends
A long shift that comes with a defined clip-retention requirement
A329S has a 4TB SSD option while both support up to 512GB microSD. The external drive must be powered and secured appropriately, and low-power VIOFO impact clips still use the card. An A329S SSD driving archive needs a separately purchased compatible drive and VIOFO cable, suitable GPS-mount power, SSD selected and Privacy Mode off. One target records, and explicit card-to-SSD copying is a separate step. It does not create a simultaneous backup. Hybrid and Low Power Impact stay microSD-only. SSD capacity does not apply.
- VIOFO A329S 2CH
- Depends
- Garmin Dash Cam X310
- Depends
A parked car that depends on the correct power and trigger behavior
The A329S needs HDR off for its 4K60 setting. Garmin has its own high-frame-rate choices at lower resolution, so compare the exact resolution and mode you want rather than assuming every high fps label gives the same output.
- VIOFO A329S 2CH
- Depends
- Garmin Dash Cam X310
- Depends
Twice as many front frames per second are recorded by the A329S 4K60 option as by 4K30
A329S can supply 60 front frames per second at the chosen 4K setting with HDR disabled, whereas X310’s 4K mode runs at 30fps. Garmin’s faster lower-resolution modes are a separate choice.
- VIOFO A329S 2CH
- Depends
- Garmin Dash Cam X310
- Depends
In practice
Differences you will notice
Pick a front-frame size that fits the view you really need
Both A329S 2CH and Dash Cam X310 have the same 8.3-million-pixel front frame. Their included channel counts are 2 and 1, so look at coverage and the selected modes before the equal front label.
How we worked this out
3840 × 2160 = 8294400 pixels, and 3840 × 2160 = 8294400 pixels again. Only output dimensions are compared, not sensor size, shutter speed, compression or readable plate distance.
Put storage on a common footing without promising how long it records
A329S 2CH has a checked 4000GB external SSD ceiling versus 512GB microSD for Dash Cam X310. The larger nominal option is 7.8 times the smaller, before formatting and protected-file use. An A329S SSD driving archive needs a separately purchased compatible drive and VIOFO cable, suitable GPS-mount power, SSD selected and Privacy Mode off. One target records, and explicit card-to-SSD copying is a separate step. It does not create a simultaneous backup. Hybrid and Low Power Impact stay microSD-only. SSD capacity does not apply.
How we worked this out
Use decimal capacity, with 1TB = 1000GB. 4000 ÷ 512 = 7.8. Capacity is not a bitrate or runtime measurement. A329S Hybrid and Low Power Impact stay microSD-only.
Twice as many front frames per second are recorded by the A329S 4K60 option as by 4K30
A329S can supply 60 front frames per second at the chosen 4K setting with HDR disabled, whereas X310’s 4K mode runs at 30fps. Garmin’s faster lower-resolution modes are a separate choice.
How we worked this out
60 ÷ 30 = 2. The comparison is between the stated 4K modes, and it does not cover shutter speed or every supported recording resolution.
Option A
VIOFO, A329S 2CH
A329S 2CH
The A329S 2CH comes with a front camera and a standard rear camera for inside-window mounting. To use the 4K60 front mode, HDR has to be off. SSD recording is optional and calls for its own compatible drive and cable, SSD storage selected and Privacy Mode off. Hybrid and Low Power Impact parking still work only with microSD.
- Best for
- Extended local archives, plus front recording you can switch to 4K60
Facts we checked
- 3840 × 2160 at the front, 2560 × 1440 at the rear
- Two recording channels are included
- Up to 512GB of microSD, plus a separate SSD up to 4TB
- GPS and Wi-Fi 6
Option B
Garmin, X310
Dash Cam X310
Garmin keeps its compact, voice-controlled camera format here and adds native 4K plus a responsive 2.4-inch touchscreen on the X310.
- Best for
- 4K recording combined with touchscreen playback right on the camera
Facts we checked
- 4K at 30 fps, or 1080p at 120 fps, for recording
- 2.4-inch display with a touchscreen
- 140-degree view, plus a built-in polarizer and GPS
Spec by spec
Where they really differ
| Spec | VIOFO A329S 2CH | Garmin Dash Cam X310 | In practice |
|---|---|---|---|
| Included views and front recording | 2 views, 3840 × 2160 front | 1 views, 3840 × 2160 front | The A329S gives you 4K at the front plus 2K at the rear. The X310 records only the front, in 4K, on a touchscreen device. Decide if rear evidence is worth the extra cable and rear-window mount. |
| Rear and cabin arrangement | Rear 2560 × 1440. No included cabin camera | Rear No included camera. No included cabin camera | Enlarging an existing front frame cannot bring back a recording direction that is missing. Check the exact camera bundle included and the usable view once installed. |
| Local recording capacity | microSD up to 512GB, optional SSD up to 4TB (compatible drive and VIOFO cable sold separately) | 512GB microSD | A329S has a 4TB SSD option while both support up to 512GB microSD. The external drive must be powered and secured appropriately, and low-power VIOFO impact clips still use the card. An A329S SSD driving archive needs a separately purchased compatible drive and VIOFO cable, suitable GPS-mount power, SSD selected and Privacy Mode off. One target records, and explicit card-to-SSD copying is a separate step. It does not create a simultaneous backup. Hybrid and Low Power Impact stay microSD-only. SSD capacity does not apply. |
| Review controls and network | Button-operated display, Wi-Fi 6 | 2.4-inch touchscreen, Garmin Drive app connection | Reviewing clips works differently with a local display. Direct Wi-Fi transfer needs a phone nearby, and it should not be mistaken for cellular remote access. |
| Parking installation | Hybrid and Low Power Impact: separate compatible high-endurance microSD only (up to 512GB), compatible GPS-mount hardwire power. Set Hybrid time or voltage, and voltage control needs HK6. Classic parking modes are also available. | Parking functions require suitable constant power. Remote functions have separate connectivity and subscription conditions | The A329S needs HDR off for its 4K60 setting. Garmin has its own high-frame-rate choices at lower resolution, so compare the exact resolution and mode you want rather than assuming every high fps label gives the same output. |
| Included optical and storage accessories | Included front CPL filter | Integrated Clarity polarizer | Confirm the exact bundle you are buying. Polarizers cut some reflections, and a starter card still has to offer enough capacity and endurance for the selected modes. |
Trade-offs
What each pick costs you
With VIOFO A329S 2CH
- A329S Hybrid and Low Power Impact call for a separate compatible high-endurance microSD along with compatible GPS-mount hardwire power. Set Hybrid time or voltage, and note that voltage control needs HK6.
With Garmin Dash Cam X310
- A subscription and constant networked power may be needed for Vault storage, remote live view and Parking Guard.
Change of plan
When the answer changes
You require a rear-road camera
Go with VIOFO A329S 2CH. The A329S gives you 4K at the front plus 2K at the rear. The X310 records only the front, in 4K, on a touchscreen device. Decide if rear evidence is worth the extra cable and rear-window mount.
You’d rather skip routing a rear cable
Go with Garmin Dash Cam X310. The A329S needs HDR off for its 4K60 setting. Garmin has its own high-frame-rate choices at lower resolution, so compare the exact resolution and mode you want rather than assuming every high fps label gives the same output.
Decision guide
How to decide
Start with which directions get recorded
The A329S gives you 4K at the front plus 2K at the rear. The X310 records only the front, in 4K, on a touchscreen device. Decide if rear evidence is worth the extra cable and rear-window mount.
Match your local storage to the settings you choose
A329S has a 4TB SSD option while both support up to 512GB microSD. The external drive must be powered and secured appropriately, and low-power VIOFO impact clips still use the card. An A329S SSD driving archive needs a separately purchased compatible drive and VIOFO cable, suitable GPS-mount power, SSD selected and Privacy Mode off. One target records, and explicit card-to-SSD copying is a separate step. It does not create a simultaneous backup. Hybrid and Low Power Impact stay microSD-only. SSD capacity does not apply.
Look at the controls and the parked-car install
The A329S needs HDR off for its 4K60 setting. Garmin has its own high-frame-rate choices at lower resolution, so compare the exact resolution and mode you want rather than assuming every high fps label gives the same output.
What this page can’t tell you
- This page makes no claim of any real-world plate-reading, night-vision or reliability test.
- A capacity calculation can’t promise a number of retention days, because bitrate, protected clips, formatting and parking use all change the result.
- Parking features depend on the right constant power. Don’t assume a low-power wake-up mode saves footage from before an impact.
By the numbers
What the data shows
What we found across the dash cams we compare, plus the checked facts behind each finding.
How many fit
Only 8 of the 38 models checked meet every need here: “I want footage from the front and the back of the car” and “Long driving shifts come before I can save footage”.
8 models fit, out of 38 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “I want footage from the front and the back of the car” and “Long driving shifts come before I can save footage”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| VIOFO A329S 2CH |
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| Garmin Dash Cam X310 | None of these needs is a documented match |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
VIOFO A329S 2CH
You require a rear-road camera
See price & reviews on AmazonGarmin Dash Cam X310
You’d rather skip routing a rear cable
See price & reviews on AmazonEach link opens in a new tab.
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