The biggest single difference (besides the technology inside), between the BenQ W500, and the Mitsubishi HC1500, and Optoma HD70, is BenQ's adjustable vertical and horizontal lens shift, which allows the projector to be placed vertically, anywhere from 55% (of screen height) above, to 55% below, the center of the screen. The other two competitors offer fixed lens shift, with a large offset, so they need to be positioned either above the top of the screen, or below the bottom. This gives the BenQ an advantage in flexibility, especially for shelf mounting. Also, the large lens offset of the other two, tend to be a serious problem for those wanting to ceiling mount in a room with low ceilings - rooms with less than 8 feet from floor to ceiling.
Click to enlarge. So close.The BenQ W500 is very reminiscent of BenQ's more expensive models, in terms of looks, but is drastically smaller than the rather large PE8720, W9000 and W10000 projectors.