I am sorry to say but the numbers are unfortunately misleading. Some time ago I made the same mistakes 
While it is easy to get some variables like hor / ver resolution, the FOV values (essential for PPD calculations) provided by manufacturers are all sorts of non-comparable: some are horizontal, some diagonalā¦
So when I made a comparison table, I decided to disregard officially published FOVs as well as user-measured FOVs (there are apps for that; though some users measure their wish rather than the reality 
) and instead decided to use hor and ver FOVs rendered to the headset. So that is the maximum FOV sent to the screens. Now what is actually seen might be a different matter 
and other limitations apply too.
In short, look here for the results and methodology. I hope it helps.
Milan