The Chinese company Xiaomi unveiled Xiaomi Mi 11 Ultra and the foldable Mi Mix Fold literally. So far, they cannot be found in wide international sales. You can still download and install on your smartphone wallpapers created by Xiaomi specifically for Mi 11 Ultra and Mi Mix Fold.
Two wallpaper collections have been posted on the XDA Developers community for mobile developers. For Xiaomi Mi 11 Ultra, there are six groups of static wallpapers with a resolution of 1440 x 3200 pixels with an aspect ratio of 20: 9, a total of 30 options for background images (download uncompressed).
For Mi Mix Fold, wallpapers are also offered in several categories, including PC mode. Some are 2480 x 1860 pixels (3: 4 ratio), while others are 2520 x 2520 pixels (download uncompressed).
The Xiaomi Mi 11 Ultra smartphone has already begun to be sold in China, but the start of the Mi Mix Fold sales will have to wait a couple of weeks.