LG UltraFine UHD 27-Inch 4K UHD 2160p Computer Monitor 27UN850-W, IPS with VESA DisplayHDR 400, AMD FreeSync, and USB-C, White

Per se, its a good monitor. Decent picture quality, very high resolution, sharp image (its 4K after all), easy to mount and set up. Huge panel with a lot of real estate which is always welcome. If you dont compare it with anything else, you will be quite happy with the monitor. BUT: I was expecting it to replicate the LG ultrafine sold on Apples website for me. I already have one of those monitors in my office and was hoping to have the same experience at my home office too. Same manufacturer, apparently same technology, similar specs, good to go, right? But its where the disappointment began. The image quality, the sharpness, the brightness, and the color delivery come nowhere near like that. Even the build quality is inferior: The plastic frame, cables, stand, everything feels less premium. I have no idea if theres any fundamental technological difference between the two panels, or its mostly a matter of firmware/software, but Id go for that Apple-overpriced ultrafine LG panel any day. MACBOOK PRO USERS BEWARE: This monitor has problems with MacOSs HDR. Right off the bat, its activated, shocking you by a pinkish downright garbage image quality once you turn on the monitor and connect it to your Mac. Either Apple or LGs fault, youll need to disable it to get a decent image profile. Thats all I came across through my hours of googling to fix it. (What? I didnt buy a half-a-grand HDR monitor only to disable it!!) VERDICT: Quite disappointed since I expected more based on reviews etc. Still debating between returning it - as much as I hate returning stuff due to the environmental impacts etc - and going for an LG ultrafine from Apple, or keeping it and trying to be happy with it. UPDATE (1 month later): Decided to keep it and give it time so it has a chance of growing on me. Im now quite used to the image quality. No big complaints anymore. The HDR problem with MacBook is still there, even after MacOS 11.4 update. No big deal though as long as you keep it off.

I like the size & look. Picture quality is not that great.

it darkens and dims, after a few minutes, so I decided to keep, tried to get partial refund but its impossible to get in contact with support, and I didnt want to return it. Seems like a problem with these screens, maybe not a common problem and I got a bad one

I researched several monitors to pair with my new M2 Mac Mini and chose this one. Very happy with it just as it came out of the box. Disclosure: Ive not tried tweaking the picture at all. There is a comprehensive manual that I have merely glanced at. Just out of the box this is simply great.

EDIT: There is On-Screen control for Mac users on newer models its just that LG kind of dropped the ball on making it easy for Mac users to find and install it. On LG.com go to Support, then Software & Drivers. Don’t use the search field they provide because for many model numbers it will say there is no matching product. Scroll down, click on monitors and search for your model manually. If your model doesn’t have a Mac download try the next closest monitor to your model. Also, worth pointing out is that 27UN850-W is the newest model and 27UL850-W is the previous model. They are both practically the same with very minor spec differences but the newest one is currently cheaper by almost $100. ---------- Heads up, their advertised On-Screen Control including Screen Split is not available to MacBook users with this monitor. In fact basically only ONE model is supported! And apparently according to other user reviews that one doesnt even have the basic functionality advertised. So just keep that in mind when purchasing an LG monitor if you are a Mac user. With that said, if that is not a deal breaker for you this is still an excellent monitor.

I upgraded to this 4K monitor for photo editing and it is fantastic.

This monitor is interesting. I’ve enjoyed my experience with it overall. However, it took me quite a while to figure out the correct settings to be able to use it. The default settings have extremely high contrast. Reds were appearing as some sort of neon red/pink color. I got it figured out after a lot of trial and error. One of the big reasons I got this monitor was so that I could use a single usb-c cord for charging (Mac) and attaching to the monitor. Unfortunately, the monitor doesn’t provide enough power to actually charge the computer. It just dies much more slowly. I use it as my home office computer (graphic design) and it lasts for the whole work day, usually. Then I have to plug into the original charger at night. I didn’t think I would have to do that, so that was a little let down. Anyway, it’s a great monitor overall. Just has a few hiccups that can be worked through.

Picture quality is good, very close to MacBook quality

I bought this as a used-like new monitor for $380. It was in fine condition but had over 230hrs of total power on time and was missing a few cables and pieces. Amazon customer support helped replace what I needed. Buyer beware... Picture quality is good, not great. With a plain black screen up you can see uneven backlighting in the corners. Also, its a matte screen, so everything is a little fuzzy and the blacks are not as deep as a glossy screen, but some people might prefer it (I guess I missed the memo that glossy screens are no longer in vogue). Brightness is a pain to change! It takes 5 clicks on the LG joystick to navigate to the brightness setting and change it 1%. I think thats probably too fine of an adjustment. Maybe take a page from Apple and have brightness go from 0 to 16 instead of 0 to 100. Im using this with a 2017 macbook pro via HDMI.

I’ve had this monitor a few weeks. I noticed the disc it came with was not in a sleeve, just loosely thrown in there. It made me think perhaps this was a return, but I can’t be sure because the rest of the items looked to be packaged correctly… I was frustrated at first because the provided USB-C cable didn’t work with my M1 MacBook Pro. I thought I had received a dud. Looked up some troubleshooting options and nothing was working. I packed it up to return. The day I was going to send it back I decided to check online again for any options. I saw a reddit post from that morning where someone said they had to get a new Thunderbolt 3 cable for the monitor to successfully recognize their M1 Mac. I ran to the store to get one and voila! It worked. The cable was $40 which adds to the cost of this thing, but it’s much cheaper than the 5k option (for the 27inch monitor) they sell at the Apple Store. Overall, I’m really happy with it for the price. I love the single-cable life—no dongles needed since my accessories connect to the monitor itself—making switching laptops from work to personal at my desk easy (with a good double laptop holder). I also think it does a good job of waking in sync with the laptop when I press on the keyboard or move the mouse.