The IN1118HD has a maximum resolution of 1080p (1920x1080). That's over two times the resolution of the most frequently found native projector resolution of WXGA (1280x800).
A 1080p (1920x1080) native projector resolution is in fact the best resolution amongst all projectors of a similar type and age to the IN1118HD.
The worst resolution amongst similar types of projector is XGA (1024x768).
We compared all the other projectors that have a resolution of 1080p (1920x1080) to this multimedia projector and we think the Vivitek DH913 ($1,099.99) which is cheaper is also worth considering.