Fujitsu has announced new additions to its business-class Lifebook line of notebooks. They are led by the U9310 and its 2-in-1 variant, the U9310X. This 13.3-inch convertible has up to 10th-gen core i7 Intel processors and weighs only about 1 kilogram (kg).
https://www.notebookcheck.net/Fujitsu-s-latest-series-of-Lifebooks-includes-the-world-s-lightest-convertible-with-a-pen.466998.0.html