HP's third generation convertible is 1.5 mm thicker in order to make room for the quad-core 65 W Kaby Lake-G CPU. Expect SKUs to begin shipping on March 18 for a starting price of $1370 USD.
https://www.notebookcheck.net/The-HP-Spectre-x360-15-2018-is-here-with-both-Kaby-Lake-R-and-Kaby-Lake-G-SKUs.269626.0.html
Is the Vega a GH or GL? Seems to be a significant difference without being able to tell which is actually inside this laptop? Like not being able to choose between a GTX 1050 and 1060.
www.notebookcheck.net/Vega-M-GH-vs-Vega-M-GL_8474_8472.247598.0.html