The PT-DZ13 has a maximum resolution of WUXGA (1920x1200). That's over two times the resolution of the most common projector native resolution of WXGA (1280x800).
A WUXGA (1920x1200) projector native resolution is actually the best resolution amongst all data projectors of this spec and age.
The worst resolution across comparable types of multimedia projector is SVGA (800x600).
What does "projector native resolution" mean?