The Infocus IN2128HD has a maximum resolution of 1080p (1920x1080). That's over two times the resolution of a WXGA (1280x800) projector, which is the most frequently found resolution.
This data projector's resolution (1080p (1920x1080)) is in fact the best resolution amongst all data projectors of a similar age and type to the IN2128HD.
Amongst similar types of data projector the worst resolution is SVGA (800x600).
Other projectors that have a resolution of 1080p (1920x1080) currently available which you might also want to consider include because of it's better review score, the HD36, or the HD421X both from Optoma or the Viewsonic PJD7830HDL ($531.99).