The PPX2055 supports a maximum resolution of 1280 x 768. That's 25% more resolution than a 1024 x 768 (XGA) projector, which is the most frequently found resolution supported by projectors of this age and spec. 1024 x 768 (XGA) is also supported by this projector. In addition, this data projector support a graphics resolution of 1280 x 768 (WXGA) and 800 x 600 (SVGA).
This data projector's resolution (1280 x 768) is actually the best supported resolution across all battery powered projectors that were released more than two years ago.
A 640 x 480 (VGA) graphics resolution is the worst supported resolution across similar types of data projector.