BenQ X500i vs X3100i

The BenQ X3100i is a higher-end model than the BenQ X500i and is better overall. The X500i does have some minute advantages, such as slightly better contrast and pre-calibration accuracy, but they can't overcome the X3100i's edge in brightness and colors. The X500i is a short-throw projector; this makes it easier to place closer to your screen than the X3100i. They both come with the advanced QS02 streaming dongle, giving them identical streaming and wireless features. If you're planning to use the projector solely in a dim or dark room, you might not need the extra brightness of the X3100i, but if you hope to use it in a brighter room, the X3100i could be worth the extra money.