LG 27UP850K-W 27-inch Ultrafine 4K UHD (3840 x 2160) IPS Computer Monitor, 60Hz, 5ms, DisplayHDR 400, Built-in Speaker, HDMI, DisplayPort, USB Type-C 90W PD, Tilt/Height/Pivot Adjustable Stand, White

Moving from a vintage 2012 23" IPS monitor to a modern 27" 4K display has made a world of difference. I couldn’t be happier with the screen quality and presentation. Since many reviews already cover video performance, I’ll focus on my specific use case: running Ubuntu Linux 24.04 on a System76 Meerkat.Right away, I encountered an issue that I initially misunderstood. When using Fractional Scaling, my mouse became laggy, jerky, and completely unusable. I mistakenly assumed this was a CPU capacity problem, but that diagnosis was entirely wrong.The real cause of my lagging mouse was my old keyboard/mouse combo, which relied on a USB dongle. It seems that this setup couldn’t keep up with the increased pixel content. After switching to a Logitech Pebble Mouse 2 M350s, the lag disappeared completely.One tradeoff I faced was with the monitor stand. To use the included stand, I had to give up mounting my computer on the back of the monitor. However, I found a great alternative: the ElecGear iNUC-K Vertical Stand, which turned out to be even better than expected. Now, my USB ports are more accessible.An unexpected bonus is the sturdiness of the included stand—it’s impressively stable!

Great quality monitor. I plan to buy a 2nd one of the same model.I use this with my Macbook Air and it is great quality. I mostly use it for work and media streaming, so I have no complaints. This is also my first IPS monitor and I am happy to have given IPS technology a try.

I have two LG 27MD5KL-B 27 units which I love. Today it lists for ~$1,500, I paid $1,200 last year. This monitor, the 27UP850K, also from LG and the same size, is not quite as bright as the other ones, and the contrast is slightly less clear for text, but I payed only $270 a month ago; it now lists for $363. (All prices quoted from Amazon.) It has only one USB-C port whereas its more expensive uncle has 4. I’m using it’s HDMI port which works fine. This monitor performs admirably for a second monitor on my iMac. I’m glad I didn’t pay > four times more $ for the objectively better, so-called ‘Mac compatible’ 27MD5KL.

I vowed never to purchase another LG products again about 12 years ago after my expensive LG TV monitor began dropping reflector lens one day after the warranty ended. LG could care less and their response was too bad, so sad. (LGs product obsolescence). I needed to replace my computer monitor after 8 years and Amazon had a great price on this LG monitor. I did not want to purchase another LG product after my horrible experience with them in the past but I needed to replace my existing one quickly. LG continues, in my experience, to remain the leader when it comes to color details and expanse in their monitors and it does not disappoint. I absolutely love this monitor for those reasons and it makes my imagery use a joy. I am happy with the purchase but I am counting the days down to one year to see if this items dies after one years use like my last LG purchase.

Excelente monitor.

Great monitor and I love the fact that I can use USB-C for connecting and charging my MacBook Air M2.

I’ve had this for less than 30 days, I’ve only used it three times max and there is already burnt pixels on the screen.

Got this for work and it's been great as an external display for my MacBook Pro. The USB-C connection for video while also acting as the charging cable works perfectly and I wouldn't get another monitor without it. To my disappointment, however, there is something loose inside of my monitor, possibly a screw. I noticed when I took it out of the box and while I was mounting it. It hasn't caused any issues that I can tell, but it is an unfortunate quality issue.