Google search of XPS 13 9305 lead me to this article.
I recently ordered the Dell XPS 13 9305 from Dell. I can confirm that it is a FHD 16:9 display 1920x1080 with options of having either a touch or non-touch display 400nits. I got the touch display because it was offered at no additional cost. I wasn't aware that it is 400nits compared to the 500nits of the 9310 which isn't that big of a deal to me. The XPS 13 typically is released as FHD+ 16:10 display which is 1920x1200 resolution from what I understand. I'm not aware of any other significant differences with the 9305 version vs the 9310 model other than the display panel, the rest of the specs/features appear to be the same. Again, the differences in display is not a problem to me personally, in fact, I would probably expect better battery life and slightly better performance in graphics with the FHD resolution vs FHD+ and 4K displays. It's a fair compromise in my opinion. FHD 1080p is more of the standard resolution anyway vs FHD+.