The ViewSonic VX1655-4K-OLED is perhaps the most impressive portable monitor we have encountered, by virtue of its 15.6-inch UHD (4K) OLED screen that has phenomenal brightness, ...

Move over, 1080p! Truly high-resolution projectors are finally affordable enough to make a 4K model your new target for work or play. Here's everything you need to know to buy the right one.