[This review was collected as part of a promotion.] Excellent Monitor! I purchased this monitor because it had the 4K resolution and VESA Display HDR 400 Support for editing photos & videos. Lenovo P27u-20 advertisement also states that it has a dual wide color gamut (99.1% DCI-P3. Not sure what a dual wide color gamut means (is it in addition to HDR 400?), but this monitor has easy controls & great color.
[This review was collected as part of a promotion.] The factory calibration is pretty good and the gamut is excellent. No dead pixels. Thunderbolt 4 interface does not work. Bottom bezel plastic is wavy and screwed up looking, but doesn't actually interfere with the function. Left and right edges have a weird ghosty hologram look so stuff looks really weird right at the edge and there are two dim bars.
[This review was collected as part of a promotion.] Excellent picture quality with a few minor usability issues. I like the 27" size as I don't have a ton of space for a 30+ inch one. Text can definitely be on the small side, but the clarity helps a lot. The image itself is great, with excellent color reproduction, as expected from a factory calibrated monitor. The stand works well and overall build quality seems good. A multitude of very fast ports make it a reasonable hub for a handful of devices and LAN. Got on sale for an excellent deal for a 27" 4k Tbolt calibrated monitor.
Downsides: The speakers are absolute trash...any notebook speakers sound better, trust me, just disable them. The menu interface is annoying old-school arrows/buttons. And the back USB-A ports are downright silly with less than 1A of power each (can't even power my old Ben Q Screenbar).
But for what I paid I can live with it all, as it's beautiful to look at all day...okay, the 1A USB ports is really annoying. LOL
[This review was collected as part of a promotion.] The unit has a decent image and is especially good in HDR mode. However, I wanted it for photo editing and while it has an Adobe RGB gamut setting, the image there looked "pasty" when set to that. It's as though the dithering algorithm "broke down". Instead of smooth skin tones, it looked like layers of color superimposed on top of each other. (I have an older 32" Lenovo and while it doesn't have HDR, it doesn't have this issue either.)
Also, the firmware is on the odd side: When it's in Adobe RGB mode, it prevents you from changing the contrast!
[This review was collected as part of a promotion.] The monitor was set up on the desk...instruction sheet wasn't exactly clear, but with a little study, it was obvious how to unbox and set up the monitor. The performance thus far has been as good or better than expected. Excellent image. Instructions for set up could be clearer, and instructions for use of docking station definitely need to be improved.
[This review was collected as part of a promotion.] I'm a MAC user which means I need a 27 inch 4K screen to take advantage of my macbook. I also wanted a screen with Thunderbolt to use it as a hub. There are not many monitors with 4K and Thunderbolt, I guess it's because of the price of combining these two technologies. Dell has a USB-C hub monitor but you get it either in 4K with no Thunderbolt or with Thunderbolt but no 4K. The only options available were well over 800$ (Samsung viewfinity and LG Ultrafine, considering latest releases) and with the clearance discount I got this one for less than 400$. This is the time to get these, I'm even planning on getting a second one. Also, using the software BetterDisplays you can even control its brightness with the keyboard.
[This review was collected as part of a promotion.] Good image, colors seem to match what I print. Wish there were an option to recalibrate internal LUTs for long-term performance, but for the money it seems to work quite well. Connectivity is sufficient, and brightness is high. Actually I wish I could make it a bit less bright.