The CP-WU5500 has a maximum resolution of WUXGA (1920x1200). That's over two times the resolution of a WXGA (1280x800) projector, which is the most frequently found resolution.
This multimedia projector's resolution (WUXGA (1920x1200)) is actually the best resolution amongst all projectors that have been available for a comparable time to this projector.
An XGA (1024x768) projector native resolution is the worst resolution amongst similar types of multimedia projector.
What does "projector native resolution" mean?