The recent OnePlus 7T / 7T Pro have a Fuild AMOLED screen with a 90 Hz refresh rate. The same frequency was chosen by Google for Pixels 4. The Chinese manufacturer could bring the value to 120 Hz with the next one OnePlus 8 Pro.
Indiscretion comes from a well-known leaker, considered quite reliable. For the OnePlus 8 the frequency of would instead be confirmed 90 Hz. OnePlus will certainly allow you to set the traditional 60 Hz, as the permanent use of 120 Hz will lead to excessive battery consumption, in addition to the fact that a similar value is not necessary for all contents. The greatest benefits are achieved with fast-moving images, such as games. Videos are usually recorded at 24 or 30 fps.
As for the hardware equipment there are no news. As leaked in late October, the OnePlus 8 Pro should have a screen from 6.65 inches with Quad HD + resolution, Snapdragon 865 processor, 8/12 GB of RAM, 256 GB of storage, front in-display camera (no pop-up like in the OnePlus 7T Pro) and four rear cameras (standard, ultra wide angle, telephoto and ToF ). The main one could have a higher resolution, perhaps 64 megapixels.
Other expected innovations are the battery with support for wireless charging (as well as the Warp Charge 30T refill) and a 5G version. There are conflicting entries on the launch date. According to some leakers, the announcement will take place in May (according to the classic roadmap of the manufacturer), while others believe it can be anticipated in February, probably during the Mobile World Congress 2020 in Barcelona. More information will certainly arrive in the coming weeks.