Vueroid S1-4K Infinite - Test & Review PP

[Chuck McCoy]

Well, well, well, look what the cat dragged in.
What a roller coaster ride waiting for the release of the S1-4K Infinite.

I first laid eyes on the S1-4K in the flesh at SEMA (November 5, 2024).
I got to meet Jake Yeom, and have a quick chat to introduce myself as a “hobby dash cam tester” (non-professional / unpaid).

Wait, let me backup.
The whole reason S1-4K is on my radar is due to the success of Vueroid D21-4K 2CH.
And of course Ben, (SafeDriveSolutions).
The D21-4K was the only “true” competition in 2024 for the Viofo A229 Pro in terms of image quality, (especially night time HDR performance).
Pretty much any dash cam will look OK to good during daytime under good lighting conditions.
However, night time HDR performance is the hardest thing to get right, and what separates the men from the boys, (just ask Thinkware, BlackVue, and Red Tiger to name a few).

Two months later I got to meet Jessie Lee, and James Kim at CES Las Vegas (January 9, 2025).
This time we all got to have a 1-2 hour discussion about the S1-4K, (Ben, Robert, Ariel, Matt).

Two months after CES James Kim, and Tuning Engineer (also James) visited the San Francisco Bay Area for test & tuning on our roads, and tiny American license plates (March 15, 2025).
James, and James made a special 60 minute detour and we had another meet up including Robert.

So that brings us to today.
I’ve previously tested five Korean made dash cams, and they all made it to my “Lame Duck List” and were shipped right back to the manufacturer.
GNET G-ON2 (I actually gave this one away)
FineVu GX1000
BlackVue DR900X Plus
BlackVue DR970X
Thinkware U3000
No HDR, unacceptable night time image quality, compatibility issues, proprietary software issues, smartphone APP privacy issues were all factors of aggravation.

Well guess what, I’m pleased to announce S1-4K Infinite has passed the first hurdle of not being nominated for a Lame Duck Award, and flying east for the winter.
S1-4K has succeeded where the other Korean brands failed.
Not only that it’s my top pick to be the only “true” competitor for Viofo A329S 3CH for 2025 in terms of image quality, and night time HDR performance.

Hot off the UPS truck earlier today from US stock my fully finished, retail version with serial numbers, (same as sold to customers on Amazon US) test unit was delivered.
I’ve been trying to get intimate with (2) S1-4K pre-production units since June 24, 2025.
There’s also a few things that drive me up the wall, but that’s due to my own ignorance, stubbornness, and limited technical education.
So far the best thing about S1-4K is Jessie, James, CTO Kim, and the rest of the Vueroid team working tirelessly to get this camera ready for launch.
It feels like they did 2 years of work in 2 months.

If you’re new to DCT, or me I’ll be doing all sorts of silly / unconventional testing.
Power Consumption in weird configurations
Horizontal FOV measurements
Heat Signature measurements with Thermal Imaging Camera
Night Time HDR Comparisons (controlled laboratory / real world driving conditions)
Pendulum Motion Blur Comparisons
Bootup Speed Test / Comparisons
Wi-Fi Download Transfer Speed Tests
And more, if you have any test request in specific configurations just leave them below, and I’ll work them into my schedule.

We’re limited to 5,000 characters so;
Post #2 will be specifications.
Post #3 will be Q&A for first time dash cam buyers.
Let’s gooooooooo!!!!!!!!!!
-Chuck

 

[Chuck McCoy]

SPECIFICATIONS
Country Of Origin: South Korea (ROK) 🇰🇷
Official Website: https://vueroid.com/index/
YouTube Channel (see how to tutorials): https://www.youtube.com/@VUEROID
User Manual: https://vueroid.com/vueroid-s/vueroid-s1-4k-infinite-2ch/support/
Official FAQs: https://vueroid.com/vueroid-s/vueroid-s1-4k-infinite-2ch/support/#faq
Firmware Updates: https://vueroid.com/vueroid-s/vueroid-s1-4k-infinite-2ch/support/#firmware
OTA Firmware Updates Supported via VueroidHub APP
Smartphone & Tablet VueroidHub APPs;

VueroidHub App - App Store

Download VueroidHub by NC& Co., Ltd. on the App Store. See screenshots, ratings and reviews, user tips, and more apps like VueroidHub.

apps.apple.com

https://play.google.com/store/apps/details?id=kr.ncn.vueroid.hub&hl=en_US
VUEROID PC & MAC Viewer: https://vueroid.com/vueroid-s/vueroid-s1-4k-infinite-2ch/support/
Vueroid Officially Recommended SD Cards: https://vueroid.com/blog/coolest-car-tech-2-2-3/

Processor: Novatek 98530
STARVIS 2 (IMX678) Front (4K30fps)
STARVIS 2 (IMX675) Rear (2K30fps)
STARVIS 1 (IMX307) IR Interior (1080p30fps)
4K30fps (rear & interior operate at 30fps)
4K60fps (rear & interior operate at 15fps)

F1.6 Lens Aperture Front
F1.6 Lens Aperture Rear
F2.2 Lens Aperture IR Interior

151° FOV Front
160° FOV Rear
170° FOV IR Interior

HDR: Front / Rear / Interior
IPC: Front Only
AI Functionalities: AI License Plate Restoration & Privacy Protection via HUB App or PC Viewer

Maximum Bitrate (set to high):
53 Mbps 1CH Front (4K60fps)
48 Mbps 1CH Front (4K30fps)
48 Mbps 2CH Front (4K60fps)
48 Mbps 3CH Front (4K30fps)
22 Mbps 3CH Rear (2K30fps)
15 Mbps 3CH IR Interior (1080p30fps)

1 Minute File Size;
435MB 1CH Front (4K60fps)
394MB 1CH Front (4K30fps)
394MB 2CH Front (4K60fps)
394MB 3CH Front (4K30fps)
181MB 3CH Rear (2K30fps)
123MB 3CH IR Interior (1080p30fps)

Parking Modes;
1.) Extreme Low Power Mode with Impact & Motion
2.) Extreme Low Power Mode with Impact & Timelapse
3.) Impact & Motion
4.) Impact & Timelapse
5.) Auto REC Off Zone Mode: Geo-fencing with 3 Zones (each zone 30 / 50 / 100 yard radius)

Safety Features: Battery Protection Mode (Battery Cut-Off Voltage & Time, Hybrid / EV, Winter Mode)

CPL Filter: Front (included)
CPL Filter: Rear (not supported)

LCD Display: 2.3” inch
Voice Commands: No
Voice Notifications: Yes
Video Codec: H.264 High Profile
Audio Codec: AAC
Format: MP4
Type-C Input/Output Protocol: USB 2.0

Super Capacitor: N/A
Lithium Battery: N/A
Q: With no Super Capacitor, or Lithium Battery, how does the S1-4K 3CH save the last file, and prevent file corruption?
A: Proprietary Patented File System (Patent filed in USA, registered in Korea).

Power Cable Connector Type: “Dual Fuel” 12 Volt Barrel & USB Type-C
12 Volt Barrel Connector compatible with Thinkware, FineVu, GNET, IROAD, (BlackVue Barrel Connector Polarity Not Compatible)
Rear & IR Interior Camera Cable Connector: 2.5mm TRRS 4-Pole
(aftermarket cables not supported / use of non-official accessories, components, parts void warranty)
Operating Temperature: -4℉ to 158℉ (-20℃ to 70℃)
Certifications: FCC, CE, UKCA, WEEE, RoHS, CA Prop 65
4 LED Status Lights: REC / Wi-Fi / MIC (security LED on front)
Bluetooth: Yes (built-in)
Bluetooth Remote: No

Wi-Fi 5: Dual Band 2.4GHz & 5GHz
Wi-Fi Download Transfer Speed: 18MB/s
GPS Support: GPS (USA), GNSS (Russian Federation), (QZSS) Japan
Driving Loop Record: 1 Minute, (no other video lengths supported)
Time Lapse Loop Record: 5 Minute @ 1fps, (no other video lengths supported)

Text Stamp On Recorded Footage: GPS Coordinates / Camera Name / Firmware Version / Date / Time / Remote Camera Configuration / Battery System Voltage / Speed / Vueroid Logo / Video Enhancing Status (Normal / HDR / HDR + IPC)

Max SD Card: 512GB Vueroid Brand
Parking Modes: Extreme Low Power Parking Mode (Energy Saving Mode) Less Than 1mA
Impact / Motion / Time Lapse + Auto REC Off Zone (Geofence with 3 user selectable locations)

Official Release Date: September 8, 2025
Official Release Date Amazon US: September 8, 2025
https://www.amazon.com/gp/B0DXF8CYNY
First Official Public Firmware: v.1.2.0
FCC ID: 2BCO9-S10UQ (June 18, 2025)
Warranty: 12 Months, (18 Months with product registration)
https://vueroid.com/support/warranty-policy/

MSRP:
$500 3CH Rear + IR Interior
$430 2CH Rear
$350 1CH

DEFAULT CABLE LENGTHS;
Hardwire Kit: 3 Meter
Cigar Jack Power Cable: 4 Meter
Rear Camera Cable: 6 Meter
IR Interior Camera: 1 Meter (permanently attached)
USB C to C Cable: 1 Meter
OBD-II Power Cable (optional): 3 Meter

 

[Chuck McCoy]

Q: What makes the Vueroid S1-4K 3CH different / better than the other 1,000 dash cams on the market?
A: Keep reading, that’s what I hope my test & evaluation will uncover.

Q: Is the Vueroid S1-4K 3CH the “2nd Generation” of the popular Vueroid D21 4K 2CH?
A: No
The S1-4K 3CH is an all new from the ground up design that’s been specifically developed for the North American Market, (small license plates).
Global market soon to follow.

Q: When upgrading to S1-4K 3CH can owners of the D21 4K 2CH reuse these components?
YES: Hardwire Kit
YES: Cigar Jack Power Cable
YES: OBD-II Power Cable
NO: Adhesive GPS Mount
NO: Rear Camera
NO: Rear Camera Cable
NO: External Rear Camera
NO: IR Interior Camera

Q: I want to purchase S1-4K 2CH (Front & Interior), and I don’t see that configuration on Amazon US, what are my options?
A: Submit a ticket here: https://vueroid.com/support/submit-a-ticket/

Q: How many different ways can I power the S1-4K 3CH, and which ones support parking mode?
A: Four ways;
1.) Included Hardwire Kit (parking mode supported)
2.) Included Cigar Jack Power Cable (parking mode NOT supported)
3.) Not Included USB Type-C Cable (parking mode NOT supported)
NOTE: Maximum power consumption is 12 Watts; 3CH, IR LED’s on, LCD Screen on, Wi-Fi On, Bluetooth On, Status / Security LED’s on, Speaker Active.
To avoid power starvation malfunctions use appropriate USB Type-C Cable, and USB Power Supply capable of minimum 5V @ 2.5A (I would recommend 5V @ 3A for added headspace).
4.) Optional Vueroid OBD-II Power Cable (parking mode supported)

https://www.amazon.com/gp/B0F5H3YLM2

OBD - VUEROID Dashcam

Features Activate dash cam instantly with our plug-and-play installation Compatible with All VUEROID Models ※ Works with most vehicles manufactured after 2000

vueroid.com

Q: Does the S1-4K 3CH have a continuous recording parking mode with audio similar to Viofo’s “Low Bitrate Parking Mode”?
A: No
(if you’re like me, you always have the option to run the camera in normal / driving mode from an auxiliary power source.
NOTE: Lithium-ion & Lithium polymer not recommended, LiFePO4 (Lithium iron phosphate) is always a safer option.

Q: Do any S1-4K remote cameras have their own processor?
A: No
All processing is performed by the S1-4K front / main unit.

Q: When the Front camera is set to 4K60fps in 3CH configuration, does the S1 4K maintain 30fps for the Rear & IR Interior cameras?
A: No.
The Rear & IR Interior cameras drop to 15fps.

Q: Does Vueroid have an official recommendation for SD Cards other than Official Vueroid Brand?
A:
https://vueroid.com/blog/coolest-car-tech-2-2-3/

We strongly recommend using a Genuine VUEROID SD card, which comes with a 1-year warranty.
VUEROID SD cards are specifically optimized for seamless compatibility with our devices.
While third-party SD cards may work, we cannot guarantee optimal performance, as they may slow down device operation.
Any resulting delay is not attributable to the device itself.
We do not provide warranty coverage for issues resulting from the use of unofficial SD cards.

The following SD cards are compatible with the VUEROID S1 Infinite.
However, please note that, except for the Vueroid Official Dashcam Pro SD Card series, stable performance under all environments cannot be guaranteed.

Lexar E Series
SanDisk Extreme
SanDisk High Endurance
(64GB / 128GB / 256GB / 512GB)

Q: Does Vueroid have an official list of SD Cards brands “not compatible” with S1-4K 3CH.
A:

Q: Does Vueroid have an official recommendation if the customer needs / wants to lengthen the original 3 Meter Hardwire Kit to 6 Meters in length?
EXAMPLE: “We do not recommend to lengthen Hardwire Kit, but if necessary please use 16AWG 100% OFC Copper Wire with accepted trade standard connection methods, and total length must not exceed 6 Meters”
A:

Q: What if you need / want a longer than 1 Meter cable for the IR Interior Camera?
A: Contact Vueroid here; SUBMIT A TICKET

Q: What if you need / want a shorter than 6 Meter cable for the Rear Camera?
A: Contact Vueroid here; SUBMIT A TICKET

 

[indigo]

i do not think d21 is good dashcam
it have very low bitrate
cannot fight 229pro even 70mai m800!
i have it and i don't like d21 4k
so i Disassemble it even it cost me 400usd!

 

[Chuck McCoy]

Q: What is the Measured Horizontal FOV of S1-4K 3CH, and how does it compare to Viofo A329S 3CH?
A: See below

Q: Why is Measured Horizontal FOV different from specifications?
A: Explained in a separate post.

Q: What are the “Rolling Black Bars” in all the screenshots?
A: This is due to my 4’ LED Shop Lights mounted on the ceiling of my garage.

Q: How can I trust your measurements to be accurate?
A329S measurements were taken June 24, 2025.
S1-4K measurements were taken this morning, (3 months apart)?
A: The hardest part to maintain accuracy / consistency is to place the camera lens in exactly the same location in relation to the yardstick.
Explained here; FOV DATABASE

S1-4K 3CH;
119° Front
120° Rear
145° IR Interior
103° Interior LED’s On

A329S 3CH;
..25° Telephoto
..94° Waterproof Rear
105° Rear
111° Front
179° IR Interior
105° IR Interior LED’s On

FRONT

REAR

IR INTERIOR

IR INTERIOR LEDS ON

TELEPHOTO

 

[TonyM]

S1-4K 3CH;
119° Front
120° Rear
145° IR Interior
103° Interior LED’s On

A329S 3CH;
..25° Telephoto
..94° Waterproof Rear
105° Rear
111° Front
179° IR Interior
105° IR Interior LED’s On

Interesting that Vueroid have chosen lenses with a wider FOV for the front and rear.

How does the S1-4K interior compare to a regular Viofo interior FOV? (not a fisheye)

IR INTERIOR:
122° FOV A229 Pro & A229 Plus
124° FOV A139 Pro
179° FOV A329S (Fisheye Mode OFF)
194° FOV A229 Ultra
203° FOV A329S (Fisheye Mode ON)

So the Vueroid S1-4K interior (145°) is wider than the A229 Pro (122°) but not as wide as the A329S fisheye (179°)

 

[indigo]

Interesting that Vueroid have chosen lenses with a wider FOV for the front and rear.

How does the S1-4K interior compare to a regular Viofo interior FOV? (not a fisheye)



So the Vueroid S1-4K interior (145°) is wider than the A229 Pro (122°) but not as wide as the A329S fisheye (179°)

viofo a229 pro a229 ultra also have fisheye 179 🙂

 

[kamkar]

My tired old eyes are weird.
Especially the rear camera aimed at the board my eyes see a white outline on the letters with the vueroid camera, but no such thing with the Viofo, it is especially clear to me on the middle low " viofo "

 

[Chuck McCoy]

How does the S1-4K interior compare to a regular Viofo interior FOV? (not a fisheye)

So the Vueroid S1-4K interior (145°) is wider than the A229 Pro (122°) but not as wide as the A329S fisheye (179°)

Good question Tony.
Here’s the;
1.) IR Interior - A229 Pro 122° Measured Horizontal FOV
2.) IR Interior - S1-4K … 145° Measured Horizontal FOV
3.) IR Interior - A329S .... 179° Measured Horizontal FOV

 

[Chuck McCoy]

My tired old eyes are weird.
Especially the rear camera aimed at the board my eyes see a white outline on the letters with the vueroid camera, but no such thing with the Viofo, it is especially clear to me on the middle low " viofo "

Yo Brian,
Please do not use these screenshots to analyze image quality, 50cm is too close.
These screenshots are only for measuring Horizontal FOV.
I have plenty of image quality comparisons coming soon, so hurry up, and wait. lol
-Chuck

 

[kamkar]

I know.
But it is the same source and head 2 head so i freak over seeing it one place but not the other.
Also just there to me on rear camera footage, which do not freak me less ( also tried with my reading glasses on looking at the 32" monitor right in front of me )

For sure i will need / use raw footage to really judge stuff, and even then i am gimped due to downscaling as my screen are just 1440p
Probably need to see if i can afford a 4K screen if ( hopefully ) i upgrade my PC next year, the high power consumption is beginning to annoy me even if it is not like breaking the bank.

Here just pointing to a oddity to me.

 

[VUEROiD]

Q: I want to purchase S1-4K 2CH (Front & Interior), and I don’t see that configuration on Amazon US, what are my options?
A: Submit a ticket here: https://vueroid.com/support/submit-a-ticket/

Q: What if you need / want a longer than 1 Meter cable for the IR Interior Camera?
A: Contact Vueroid here; SUBMIT A TICKET

Q: What if you need / want a shorter than 6 Meter cable for the Rear Camera?
A: Contact Vueroid here; SUBMIT A TICKET

Q: Does Vueroid have an official list of SD Cards brands “not compatible” with S1-4K 3CH.
A: It would be impossible to list every brand that is not compatible. 😉
For now, filtering can first be done based on the performance class and grade of the SD card.
I do recall a few SD cards reported by the lab as having compatibility issues, but I don’t think it would be a big problem if we don’t specifically mention them.

Q: Does Vueroid have an official recommendation if the customer needs / wants to lengthen the original 3 Meter Hardwire Kit to 6 Meters in length?
EXAMPLE: “We do not recommend to lengthen Hardwire Kit, but if necessary please use 16AWG 100% OFC Copper Wire with accepted trade standard connection methods, and total length must not exceed 6 Meters”
A: I will look into this and get the appropriate response from the R&D team.

The rear camera and interior camera are being prepared as separate products for sale and will be available within a couple of months.
As for the extension cables for the interior and rear cameras, I will get back to you with confirmation.

Thank you!

 

[kamkar]

Just realized, it could be the rear camera is running with other sharpness / contrast settings, which i think could cause something like what i think i see.
My first 1080 p camera from LUkas in Korea, it had very high sharpness and contrast settings default, i learned that the hard way getting my first street guardian system, CUZ for a while being used to the Lukas i was thinking " something is off here " looking at the footage from the SG camera CUZ i was that used to looking at the Lukas after a year or so using that.

 

[Chuck McCoy]

BOOTUP SPEED TEST

Q: How long does it take S1-4K to start recording when powered on?
Also compared to;
A329S 3CH (2025)
A329 2CH (2024)
A:

1.67 Seconds S1-4K
13.69 Seconds A329 (2024)
21.69 Seconds A329S (2025)

S1-4K: 256GB Vueroid SD Card
A329: 512 Viofo SD Card
A329S: 256 Viofo SD Card

Cameras were running for around 2 hours before performing this speed test so they were “fully warmed up”.

Here’s the 1 Minute videos from each camera;

Here’s what it looks like from behind the cameras;

Q: How is S1-4K bootup so fast?
A: I think it has something to do with the unique file system.

Q: Is S1-4K’s fast boot up time a “free lunch” or is there a catch?
A: I’m not sure, but I noticed the text stamp at the bottom of recorded footage is missing for the first 10 seconds of the video.

 

[VUEROiD]

Q: How is S1-4K bootup so fast?
A: I think it has something to do with the unique file system.

Q: Is S1-4K’s fast boot up time a “free lunch” or is there a catch?
A: I’m not sure, but I noticed the text stamp at the bottom of recorded footage is missing for the first 10 seconds of the video.

I can’t go into the technical details, but…
One of our primary goals was to start recording as quickly as possible after power is applied, ensuring continuous recording even in extreme situations.
This fast-recording feature was implemented specifically to achieve that objective.
I think it could be less than 1 sec, but anyway, it is a great test. 👍

 

[Chuck McCoy]

I think it could be less than 1 sec

Yes, but I chose 1.67 Seconds because that's when the image gets "full brightness".
I can see 0.95 Seconds on the clock but it's very dark.

What about the missing text stamp for the first 10 Seconds of video?
Can that be improved?

 

[TonyM]

BOOTUP SPEED TEST

Q: How long does it take S1-4K to start recording when powered on?
Also compared to;
A329S 3CH (2025)
A329 2CH (2024)
A:

1.67 Seconds S1-4K
13.69 Seconds A329 (2024)
21.69 Seconds A329S (2025)

S1-4K: 256GB Vueroid SD Card
A329: 512 Viofo SD Card
A329S: 256 Viofo SD Card

That's interesting, I was doing startup tests on the A329S last night and had the same results as you (21-22 seconds). Same in 1CH and 2CH mode as well.

The fast startup time of the S1-4K is a big difference. I can pull out of my driveway and potentially hit (or be hit by) another car long before the A329S has started recording.

 

[indigo]

BOOTUP SPEED TEST

Q: How long does it take S1-4K to start recording when powered on?
Also compared to;
A329S 3CH (2025)
A329 2CH (2024)
A:

1.67 Seconds S1-4K
13.69 Seconds A329 (2024)
21.69 Seconds A329S (2025)

S1-4K: 256GB Vueroid SD Card
A329: 512 Viofo SD Card
A329S: 256 Viofo SD Card

Cameras were running for around 2 hours before performing this speed test so they were “fully warmed up”.

View attachment 85162
View attachment 85163
View attachment 85164

Here’s the 1 Minute videos from each camera;

Here’s what it looks like from behind the cameras;

Q: How is S1-4K bootup so fast?
A: I think it has something to do with the unique file system.

Q: Is S1-4K’s fast boot up time a “free lunch” or is there a catch?
A: I’m not sure, but I noticed the text stamp at the bottom of recorded footage is missing for the first 10 seconds of the video.

sooooooo fast start

 

[kamkar]

LS technology ( Lightning Start )

 

[lufa6977]

That's interesting, I was doing startup tests on the A329S last night and had the same results as you (21-22 seconds). Same in 1CH and 2CH mode as well.

The fast startup time of the S1-4K is a big difference. I can pull out of my driveway and potentially hit (or be hit by) another car long before the A329S has started recording.

Yes, startup recording is about as 'instant' as a person could hope for. After startup, if the S1-4K is busy with housekeeping, a message is displayed on the LCD, and pressing a button triggers an audible alert. Regardless, the S1-4K is recording.

At the first startup of the day, the GPS gets its orientation and sync for that area. This may take about a minute. After that, subsequent startups will sync with GPS more quickly, and of course, there is an audible alert when the GPS is synced.

The delay in showing the 'data line' is something we discussed during testing. As I recall, more emphasis was placed on getting an image quickly to the video stream. After that, the other information is displayed. If it's the first startup for the day, the GPS may be a little slower, but it will eventually display the GPS coordinates.

Sometimes there are tradeoffs. One brand, after 20 seconds, offers a video that includes both relevant and non-relevant data. Alternatively, with the S1-4K, you can get a near-instant video to record your car leaving the house or parking lot, with the data available 10 seconds later. People have to weigh what is more important to them.