HP presented two new models of its professional monitor series DreamColor at
Adobe MAX 2020 Creative Conference, the HP Z25xs G3 and the Z27xs G3 DreamColor. Both use a factory-calibrated 10-bit (8-bit plus FRC) IPS panel with a Pantone-validated color gamut and have a fairly high maximum brightness of 500 nits (HP Z25xs G3) and 600 nits (Z27xs G3) respectively.
They support the (DisplayHDR 600 standard) and should be able to display "real" HDR, see also our guidebook article
When can a monitor display real HDR? Caution with the DisplayHDR Standards on this topic.

Z27xs G3 DreamColor
Both new DreamColor models have two USB-C ports (one with 15W, the other with 100W PowerDelivery), HDMI 2.0, two DisplayPort 1.4s (one input and one output) and three USB 3.2 Gen1 Type A ports. They can be swivelled, tilted and rotated by 90° (pivot) for better ergonomics.
The display of the HP Z25xs G3DreamColor is 25" with a resolution of 2,560 x 1,440 pixels, the display of the Z27xs G3 27" with an UltraHD 4K (3,840 × 2,160 pixels resolution). As a special (world&s first) feature, HP praises the new One-Touch Brightness feature, which allows users to quickly view their work at maximum brightness at the touch of a button and then return to the previous state without interrupting their workflow.
The HP Z25xs G3 and Z27xs G3 DreamColor are scheduled to be available in March 2021 at a price of around (Z25xs) and (Z27xs), respectively. Until then, HP will hopefully publish further technical data such as color space coverage.

The new HP monitors
HP has also announced six new Z-Core displays in sizes from 24-27" and resolutions up to 4K, all with high color accuracy, virtually frameless profiles and the ability to power a connected notebook via USB-C with up to 100W. The price range reaches from 239 up to 599 dollars depending on the equipment.