Though it has the same basic design as its predecessor, the , this version has a sharply higher brightness rating (12 lumens, versus 8 lumens for the MPro110), a better battery-life spec (2 to 4 hours, up from 90 minutes), a longer warranty (one year instead of 90 days), and a lower street price ($350 as of January 11, 2010, versus $400 for its predecessor). Most significantly, the MPro120 comes equipped with 3M's newest LCoS (liquid crystal on silicon) projection engine, the MM200, which delivers higher-quality images than the earlier MM100 LCoS engine could.
In our tests at a distance of 3 feet from the screen, the MPro120 displayed very viewable 640-by-480 resolution images at sizes of up to 28 inches diagonally in a room with low ambient daylight. Like other pico projectors, the MPro120 isn't designed to replace a conference-room projector, but it is powerful enough for to handle presentations to small audiences (one to five people) under low light conditions. In a darkened room at night, the MPro120 successfully displayed a 60-inch-diagonal image when positioned 6 feet from the screen, making it even more useful as an after-hours entertainment device.
In our performance tests, the MPro120 earned a rating of Superior for its image quality. Of the pico projectors we tested, it was the best at reproducing accurate color hues, free of oversaturation. In displaying graphics, the MPro120 excelled at capturing fine details in light and dark areas of various images. It also surpassed most of its rivals in its crisp text rendering of PowerPoint slides and other text images. (Only the Aaxa P2 earned higher ratings for its text display.) In motion tests, the MPro 120 displayed pleasing color and smooth action in our Monsters vs. Aliens DVD screening, as well as in podcasts and other videos when connected to an iPod or an iPhone.
On a critical note, we noticed that that the MPro120 slightly overscans (that is, crops out) the edges of various images; but in use, we didn't find this to be a major problem. Since the MPro120's sound (dual 0.5-watt speakers) isn't very powerful, you may want to use headphones or separate speakers to obtain better audio.
The MPro120's streamlined design makes it a breeze to use. The controls on top for power, brightness ('normal' or 'eco' mode), and volume are readily accessible. In front, a focus wheel for the projector's lens is well-positioned and easy to adjust. The bundled 4.5-inch flexible tripod is convenient, too.