Bests & Worsts Reviews from Amazon

I'll cut to the chase with this review. If you're a gamer, can run 4k at 60FPS, don't want to spend a fortune, this is the panel for you. You're not finding better for the price, unless there's a sale. I got this panel for $280 down from $400. Read this review. Here's the quick specs: 4K, 60hz, HDR, Freesync, 5ms GtG, IPS, 98% sRGB color range. You may be wondering how the UL550 compares to the 500, 600 and 650. They all have the same panel, except brightness. The 500 and 550 both are 300 nits in brightness, while the 600 and 650 can reach 400 nits. Truth be told, 300 is plenty bright enough, is above the average, and actually makes more sense. All 4 panels only hit 300 nits in HDR. The HDR400 on the Ul650 doesn't truly hit 400 nits, go look at reviews. Now for this monitor I tested it on an Xbox One X with HDR10, 4k and Freesync enabled. I played Modern Warfare, Blackout, various Rpgs, etc. The response rate and input lag is exceptionally low for an IPS. You will not feel the difference if you're coming from a TN panel, but you will notice how much nicer the image on this is. It's very impressive for IPS. The color range is almost 100%, so yeah, enough said on that. HDR is nice, it shows. For those that say you need 1000 nits to hit true HDR, that's true if you're looking at a TV which is supposed to be viewed from 6ft+ away. 1000 nits on a monitor right in front of you would screw your eyes up. I tested HDR on/off on various titles and the conclusion is, keep it on! If gaming on an FPS avoid the FPS preset. It sets the response rate to "faster" which is uneccesaey and kills some image quality. Instead use the custom feature, make sure the game response rate is on "fast", enable freesync, then enable it on your Xbox/PC. Leave the Backlight brightness as 100, contrast at 60-70, and sharpness at 40. Don't use super resolution, you don't need it if you're seeing 4k. Have a nice day. Enjoy the monitor, it's fantastic.