A:Answer well the first thing I noticed was that the UHD50 projector is much smaller, so likely easier to install. both have native 4k UHD specs. the 60 is brighter (3,000 lumens vs. 2,400 lumens); also the other thing that stood out to me upon comparing, is the throw ratio is different. the UHD60 would work better for a larger room (T.R. 1.39 - 2.22)while the UHD50 with T.R. 1.21-1.59 more suited for smaller or tighter spaces. contrast ratio is better on UHD60, but both are outstanding specs. One can check that little 'compare' box to see them side by side. If you have a smaller space, go with the UHD50, and you can save about $ 300.