Black YoloLiv YoloCam S3 webcam on its L-shaped mount, with a silver lens ring inside a blue ring and the YoloLiv logo on the mount

YoloLiv YoloCam S3

A 4K30 and 1080p60 webcam with the largest sensor in this group. Tom's Hardware found it needs a USB 3.0 port to work at all, and both testers had to adjust its settings for the best picture.

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Compatibility report
Black. YoloLiv's store sells one configuration, SKU Yolocam S3. 4K webcam with a 1/1.28-inch sensor and phase-detection autofocus, a magnetic L-shaped mount, a USB-C cable and a USB-C to USB-A adapter. No microphone and no privacy shutter.

What works. What doesn't.

Working in this setup

Video

Tom's Hardware's March 2026 review rated the image excellent and on par with the Razer Kiyo Pro Ultra, but found the default settings too high in contrast, with blown-out highlights in low light. PC Gamer's April 2026 review called it close to DSLR quality and recommended adjusting white balance and turning off vignette correction.

Reviewer / Source checked 2026-10-27
Tom's Hardware: YoloLiv YoloCam S3 Review: A 4K powerhouse

With limitations

Connection

Tom's Hardware found the camera needs a USB 3.0 port to function. YoloLiv's firmware 1.0.0 added a USB 2.0 connection alert. YoloLiv lists 4K at 30fps only in MJPEG, H.264 and NV12, and YUY2 only at 1080p and 720p.

Reviewer / Source checked 2026-10-27
Tom's Hardware: YoloLiv YoloCam S3 Review: A 4K powerhouse

With limitations

Mac features

YoloLiv's Compose app, which configures the camera, adjusts video and updates firmware, has macOS versions for Intel and Apple silicon. YoloLiv's version history lists a virtual camera for Compose 1.1.2 on Windows only, with Mac listed as next.

Manufacturer documentation / Source checked 2026-10-27
YoloLiv: YoloLiv Compose Software Download

With limitations

Mounting

Tom's Hardware found the camera has no mounting point of its own; magnets on two sides hold it to the aluminum mount in landscape or portrait. The magnet is strong enough for normal use, but the mount does not swivel and its 1/4-inch thread is on the mount, not the camera.

Reviewer / Source checked 2026-10-27
Tom's Hardware: YoloLiv YoloCam S3 Review: A 4K powerhouse

Read the bigger picture.