One of our prototypes had an “HDR” panel, but this was not true HDR as it did not meet any of the HDR standards:(https://displayhdr.org/).
Real HDR support requires an HDR-enabled screen controller and panel with a peak luminance of 400 cd/m2, resulting in a high power draw.
The xScreen was designed not to require any cables; as such, we are limited to the power that USB can provide; based on this, we cannot support HDR.