The highest resolution of the NEC PA621 is WUXGA (1920x1200). That's over two times the resolution of the most common native projector resolution of WXGA (1280x800).
A WUXGA (1920x1200) native projector resolution is in fact the best resolution across all comparable spec projectors that are a similar age to the PA621.
The worst resolution across similar types of projector is WXGA (1280x800).
We compared this multimedia projector to all the other data projectors that have a resolution of WUXGA (1920x1200) and we think the NEC PA622 (£4,104.82) which has a better Rating is also worth considering.