If you set the fixed page size to the same size on each device (I'm assuming you meant 1280 and not 1208 on the second device), then the layout of the lyrics should match. They will just be scaled up or down as needed. If you are having a problem with this, yes, I'm going to need to see screenshots. You need to make sure you are using the same display mode and page scaling mode and such as to avoid any confusion with that. I just verified with multiple different chord pro files that the layout was identical on my PC compared to my Android tablet with the same page size assigned (with version 3.9.7).
Mike
Mike