The separation between the OnePlus 7 and OnePlus 7 Pro may be even larger than expected. So far we've heard that the Pro will have a larger screen (6.64" vs. 6.4") with a pop-up selfie camera instead of a teardrop notch. But the latest rumor claims that this will be the company's first QHD screen. Even better, it will run at 90Hz. Is OnePlus thinking about going after gaming phones? With a Snapdragon 855 chipset and plenty of RAM, it's not out of the question. Even outside of games, 90Hz will make the UI buttery smooth. The rumor also claims stereo speakers on the Pro, though it's not...
Source: https://www.gsmarena.com/oneplus_7_pro_could_have_a_qhd_90hz_display_stereo_speakers-news-36609.php