At a measured brightness of 868 nits on the center of the screen, the UBook Pro is nearly 90 percent brighter than even the Surface Pro 6. It's not everyday that a cheaper Chinese clone offers something better than the "proper" authentic version.
https://www.notebookcheck.net/Chuwi-UBook-Pro-Surface-Pro-clone-has-a-brighter-display-than-the-actual-Surface-Pro.442705.0.html