Dell might indeed be justified in calling its latest webcam an "UltraSharp" as it has a 4K resolution. Furthermore, it supports Digital Overlap HDR, automatic refinements for visual properties such as white balance and noise reduction, as well as iPad Pro-like auto-framing abilities. However, this potential for streaming and collaboration comes at a price.
https://www.notebookcheck.net/Dell-s-latest-webcam-is-a-4K-UltraSharp-model-with-automatic-feed-enhancements.548451.0.html
Nice webcam but no integrated microphone for $200. Fail.