Ok.
Here is the GSM Arena review of the new OnePlus Pad 3. I considered at the time the OnePlus Pad 2 but went with Xiaomi Pad 6S Pro. This OnePlus is a tablet for productivity with size upped to 13.2" 675g and 7:5 format. The Xiaomi is 12.4" 590g 3:2
https://www.gsmarena.com/oneplus_pad_3-review-2854.php
You can see in various benchmarks like battery recharging and screen brightness that the Xiaomi remains the best.
One feature of this OnePlus is that it can control PC and Mac's, so you go out with tablet and still can finish working what you are doing in the Mac or PC but their test with Mac was not reliable. Maybe with an update.