The Amazon listing just went live today, but it is currently showing an incorrect native resolution and aspect ratio of 2880 x 1920 and 4:3 for the KUU LeBook. The price includes both the keyboard and tablet whereas the Microsoft Surface will often charge extra for these accessories.
https://www.notebookcheck.net/KUU-LeBook-Windows-convertible-now-shipping-for-808-USD-or-EUR684-for-a-limited-time-to-challenge-the-Microsoft-Surface-Pro.567078.0.html