The Galaxy S21 Ultra and Galaxy Z Flip3 are both available for under US$900 currently, with the Galaxy Z Flip3 having been reduced to US$849.99. The pair can be purchased at these prices in multiple colours.
https://www.notebookcheck.net/Samsung-Galaxy-S21-Ultra-falls-to-US-899-99-in-a-25-saving-as-Galaxy-Z-Flip3-receives-a-US-150-reduction.581709.0.html