The highest resolution supported by the Acer S1383 is 1920 x 1200 (WUXGA). That's 20% more resolution than a 1600 x 1200 (UXGA) projector, which is the most common resolution supported by 13000:1 contrast ratio projectors that were released more than two years ago. In addition, this projector supports a graphics resolution of 1280 x 800 (WXGA).
This multimedia projector's resolution (1920 x 1200 (WUXGA)) is in fact the best supported resolution across all 13000:1 contrast ratio projectors that were released more than two years ago.
The worst supported resolution amongst comparable types of multimedia projector is 640 x 480 (VGA).