While we're comparing the specs, one important area we need to talk about is the camera. Or the camera(s).
The camera is always one of the weakest links for OnePlus, but in 2018 they really stepped up their game. By using a bigger 1.22um sensor with a fast f/1.7 aperture, and it finally had optical and electronic image stabilization. At least the main camera. The secondary lens is 20MP and helps take portrait-mode photography and a few other things.
With the new OnePlus 7 and Pro, they're going to continue that trend of offering a great camera while still keeping the price down. They'll do that by having a triple camera setup on the Pro, (two big new sensors on the 7), smart AI software, an improved night mode and more.
We're hearing the Pro will have a triple 48MP main, 16MP telephoto, and 16MP wide-angle camera setup while the smaller OnePlus 7 has a dual 48MP main and 16MP wide-angle lens.
Personally, we doubt the OP7 will beat the Galaxy S10, but it'll come close for probably half the cost.