At CES in Las Vegas, Asus has announced a new model of the Zenbook 13 which now weighs just 985 g (~2.17 lb) despite an increase in battery life. This really reminds us of the Gram notebooks from LG.
https://www.notebookcheck.net/The-new-Zenbook-13-UX331UAL-weighs-less-than-1-kg-2-2-lb.277398.0.html