The new "thinnest gaming laptop in the world" is just 15.75 mm thick at its thickest point to be even thinner than last year's ROG GX501. The GX531 introduces narrow bezels and 144 Hz displays to the Zephyrus family with plenty of changes both internal and external. Expect a worldwide launch as early as September.
https://www.notebookcheck.net/Next-generation-Asus-Zephyrus-S-GX531-will-be-even-thinner-than-the-Razer-Blade-15.322980.0.html