Amazon.com: Customer reviews: LG UltraFine UHD 27-Inch 4K UHD 2160p Computer Monitor 27UN850-W, IPS with VESA DisplayHDR 400, AMD FreeSync, and USB-C, White,Silver

Top positive review

Excellent for me-macmini M2 base model

Reviewed in the United States on September 27, 2023

Was using Dell u2415 that seemed pretty good for the new Mac mini (8/256) I just got, using HDMI. Dell screen had a few areas that were getting image burn or something, so searched for 27 in 4k replacement. Biggest question was would I notice a significant difference if did get a 4k, well the answer is yes. I got 27UN850-W since I don't need 90w or 60w charging. Not a gamer, not a photo proofer, not a content creator. This screen is really nice, the text is much sharper and clearer, and my eye are not bugged out after extended viewing like they were on the Dell. Cost an issue, oh yeah, the apple display was not happening. Really anything over $400 wasn't happening. Do I need a USB hub, no or ethernet in the monitor-no. Ran the included USB-C cord from the Macmini to the LG screen turned everything on and wow how nice the screen looked. It shows up in system as LG HDR 4K with color profile LG HDR 4K 60hz. It looks super excellent to me. Did try changing the resolution to I guess it was true 4K and everything was sharper, but needed a magnifying glass to read it, so I went back to that original setting as it was perfect. Looking in Hardware Graphics/Displays this is what my Mac was reporting: LG HDR 4K:
Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition)
UI Looks like: 1920 x 1080 @ 60.00Hz
It is silent just like the Macmini. Still quick and snappy. My windows machine has W11 and attach it via HDMI. The joystick control on the LG makes it easy to select what input to display and I had to play with that because it defaulted to some high resolution with 30hz! Everything was really choppy, got it set to a lower resolution at 60hz. This screen will go to sleep with the Mac, and wakes up fast no issue. The included speakers are set with Maxx sound on-which is an attempt to make them sound better-and they do get quite loud, but they are small monitor speakers, and would only be good for voice. At low volume levels music would probably be ok, but I am not using them, and using a bluetooth speaker for way better sound. Stand is stable for me, really easy to put together and get going. The power brick is hidden under desk, not a big deal that it is a small block, cord is plenty long. Well packaged. LG delivered a very nice screen for the money with this one. Super happy that it was plug and play with the Mac, and operates correctly with the Mac. It's a keeper for me.

Update April 26 2024---------------- Quick update after using it daily for the last 6 months. No change in opinion, no buyers remorse, no screen issues, still easy on my 60+yr old eyes. Sometimes when reading text I really notice the detail and sharpness and get that happy feeling.

24 people found this helpful

Top critical review

Critical reviews›

Nankura

El ips black es nombre porque no se nota mucho el avance

Reviewed in the United States on February 5, 2023

Soy diseñador profesional y calibrador con la marca X rite de hace más de 10 años. Este monitor de 32 ultrafine debería costar máximo $445 con la opción de calibrador por aparte o como el modelo de 27 que no lo incluye. El tratamiento anti reflejo es semi matte pero no tiene un polarizado que ayude a mejorar los negros. El calibrador es simple y exclusivo para este tipo de modelos "ips black" pero con maña se puede usar en otros modelos, no es competencia para el xrite i1 studio. Cosas ilógicas el software de Lg, permite calibrar todos los perfiles menos el perfil HDR, lo cual es ilógico para un modelo de estos precios muestra la inferioridad de calibrador incluido. Destaco los 10 bits nativos de color y la cobertura del 98% del DCI P3, pero fuera de esos 2 detalles el monitor no cumple con sus supuestas mejoras a los IPS ultrafine o los PLS como mi antiguo Asus PB278Q. Se nota mucho el "ips Glow" lo cual pierde la experiencia de ese negro profundo, he visto más profundidad de negro en VA o PLS o AHVA, hablando en como ejemplo en escenas con mucho negro donde la debilidad se nota. Si destaco que color cuandos se muestra en imágenes normales en pantalla completa, no se nota tanto este error, pero al mínimo de una escena oscura salga o vea un contenido con barras negras vera lo inferior de la calidad de iluminación y el tratamiento del semi mate. Marcas chinas como INNOCN Mini LED de 32 (8+2) pueden ser una mejor opción que este modelo eso si teniendo en cuenta los contras que no incluye calibrador ni es 10 bits puro. Al final lo compre en una rebaja temporal, y quería pasarme a un monitor de 32, pero pienso que el precio correcto debe ser máximo $500 con el calibrador. Mi unidad posee un ligero sangrado en la parte inferior del panel en ambas esquinas y un leve sangrado superior izquierdo.

Actualización 27 Feb 2023: El software de calibración suele aparecer de manera regular sin abrirlo. El ICC profile tanto v4 como v2 que se instalan en windows generan problemas de color en photoshop, tocando tener que quitarlos y confiar en la calibración por hardware que supuestamente queda grabada en el monitor digo supuesta porque el software no permite revisar donde se guarda dentro del monitor. Nunca tuve un problema de icc profile con Xrite solo con 3d max lo cual me hizo seguir usando el version 2 por compatibilidad.

6 people found this helpful

2,101 total ratings, 527 with reviews

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From the United States

soopabox

Excellent for me-macmini M2 base model

Reviewed in the United States on September 27, 2023

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

24 people found this helpful

Helpful

John

Best mid-priced alternative to Apple 5K display

Reviewed in the United States on August 16, 2023

Display Size: 27 InchesStyle: Power Delivery: 90WVerified Purchase

I performed weeks of research before committing to the 27UQ850-W. While no monitor is perfect, this is likely the best Apple 5K replacement under the $800 price point. I use Apple machines for just about everything except gaming: productivity, software development, creative workflows like photo editing and recording audio, and watching videos. I have a 2019 Macbook Pro 16 i9 (Intel) and another 2021 Macbook Pro 16 M1 Max. Both machines are working great with this monitor.

Connectivity
---------------
DisplayPort and USB-C ports work fine. I can't tell any quality difference between them. My regular setup uses the DP port connected to CalDigit TS4 dock. Cables provided by LG are long enough to reach the TS4, but users with a machine farther away might need slightly longer cables. I haven't tried the HDMI port because a lot of people report Apple issues with HDMI on M1-based machines.

This monitor does not support daisy chaining or Thunderbolt.

Resolution and Overall Visual Experience
------------------------------------------------
My biggest concern was how Apple-native 2560 x 1440 ("WQHD") output would look when rendered on a 4K display. I write a ton of code and need text to look really sharp. I read all I could find about this subject and took a field trip to the Apple Store to evaluate the 5K display where the situation is perfectly ideal: 2560 x 1440 logical pixels get rendered onto a 5120 x 2880 display yielding an exact 2X scale factor in each axis. The results are super sharp text and smooth visuals for both content and UI elements -- part of the Retina brand.

Here's the thing some readers may wish to know. On a 27" display WQHD output does in fact look best from a text size and UI perspective, at least on Mac. Changing to resolutions other than 2560 x 1440 result in an experience that is less satisfactory. Imagine my surprise when, for WQHD output, text looked 85-90% as crisp as the Apple 5K. I sit between 26" and 32" away from this monitor. At this viewing distance I don't struggle to read anything. Everything is clear. I am confident WQHD output on WQHD-native displays will look much worse despite a perfect 1:1 pixel mapping. I also think WQHD content will look better on a 27" 4K than a 32" 4K due to higher PPI on the smaller display.

As to the alleged performance hit Mac machines take while downscaling to non-native resolutions like WQHD, here is my experience. Macbook Pro M1 Max doesn't even blink. There is no observable difference in terms of heat, CPU, or anything else. By contrast the 2019 Intel Macbook Pro i9 runs hotter by 10-15 deg C. The fans run constantly above 2500 rpm. One Youtube user reported slowdowns on Apple hardware while connected to a 4K monitor and rendering scenes in Blender. I can see where this might be an issue for specific Apple machines and/or apps, but I suspect they are edge cases the average user won't run into.

This monitor has nice saturation and overall color balance. I'm no colorist but the display just looks really, really good. I tried toggling HDR in Apple settings under display but couldn't discern any observable difference.

Interoperability With USB-C Docks
----------------------------------------
I have accessories like monitor and audio interface connected through a CalDigit TS4 dock. This LG has no problems through it either. Both Macbook Pro machines remember display arrangements and resolutions that were previously selected. I haven't observed power management related snafus as some people report, but I disabled power management while on A/C power.

Brightness
-------------
Going back to the priority for text legibility, I traditionally used extra brightness to enhance contrast and make reading easier on my eyes. I leave this monitor at 100% brightness, but I could probably go down to 85% before it would start to feel dim. Brightly lit rooms probably afford many fewer options unless one agrees to pay the Apple tax for the ultra-bright 5K.

Build quality
---------------
Build quality is okay. It looks like the cheap plastic that it is, though I like the narrow bezel all the way around the front. I haven't tried out audio because I use studio monitors instead.

The monitor does not include a camera.

In closing I think this is a fantastic monitor -- probably the best I've bought. Gamers and ultra discriminating users who need the very best probably won't be happy with it. For the rest of us it's a nice offering from LG that shows how far IPS panel technology has progressed in recent years.

150 people found this helpful

Helpful

J. Payne

A great monitor. So glad I got it.

Reviewed in the United States on April 13, 2024

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

After getting a similar priced monitor on Amazon and being horribly underwhelmed by that monitor's capabilities, I saw this monitor was discounted to the same price so I bought it on the strength of the specs and reviews. So glad I did. In every way this monitor is superior to the other monitor I purchased. The audio output from the other monitor was worse than AM radio through blown speakers, it was that bad. This monitor's speakers, while not high-fidelity, are decent for every-day or home office usage. More importantly the menu system is great, the image quality and panel are really impressive. And that it has USB-C PD capability (65 watts?) and works flawlessly with my M1 MacBook Pro, I give it a high recommendation.

One person found this helpful

Helpful

Mr Toad

Works great but has occasional blackout blips

Reviewed in the United States on April 14, 2024

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

I'm generally happy with this monitor. I've always used Apple monitors but this is a more affordable option and still looks great. But every so often and quite randomly the screen goes to black for a second and then looks fine like nothing happened. I'm not sure why... it hasn't happened enough for me to return it, and assorted forums say that I'm not the only one experiencing this. But it is rare... like every 3-4 weeks or so, for no apparent reason, for just a second. Otherwise, I'm pretty happy with it.

Helpful

Gary271

Excellent Monitor

Reviewed in the United States on January 4, 2024

Display Size: 32 InchesStyle: Power Delivery: 65WVerified Purchase

I bought four of these for a new workstation (replacing four 27" 4K 60Hz LG monitors).
These are much better.

+ No dead pixels. I know that's not so much of a thing now, but nice to see over four monitors.
+ Very repeatable color, contrast and brightness. My previous monitors all had very different settings and I could never get them all exactly the same - these monitors are all the same settings and they look identical.
+ 144Hz is visibly better than 60Hz even for a non-gamer (moving/rotating 3-D models). You will need high quality HDMI/D-PORT cables (without extension connectors) to make them work @ 4K/144Hz if the short cables that come with the monitor aren't long enough. I don't know what spec. of GPU you need to get four monitors at 144Hz/4K.
+ USB-C input option for future proofing or use with a modern laptop/tablet.
+ The stand is pretty flexible (see note below).
+ Decent enough sound for a monitor - as far as that goes.
- Of the four monitors, none had the same maximum height for stand adjustment (there was nearly 2" between the shortest and tallest).
- I know that 19VDC is getting to be pretty universal for power supplies, but I'd have thought there was room in this monitor to include the power so one could just plug it in to 100-240V which would have made my workspace neater.

10 people found this helpful

Helpful

Andrew S.

Good for gaming too!

Reviewed in the United States on January 9, 2023

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

Although I am aware this is a productivity monitor first, I was in the market for a 4K60 Monitor that could game well and would not break the bank. I am used to gaming on console so 120FPS support was not something I required as I am satisfied with 60FPS. I did endless amounts of research on various brands in this pricepoint to figure out what would be the best monitor in terms of screen quality and response time. This specific model did not have many reviews in terms of gaming performance, however I did know that LG makes great gaming monitors, this one has a game mode, and I was already looking at the LG 4K model priced below this one. When this model went on sale, I took a risk and purchased it over other highly praised monitors in this price point not knowing if it would be good for gaming, and I can answer that YES it is!

Starting with screen quality, brightness is great, contrast is beyond expectation, white, gray, and black uniformity are all top notch, with little to no IPS glow. Colors are accurate and the resolution keeps things sharp. No complaints.

For gaming, when you put this monitor directly side by side with a high refresh gaming monitor, it is extremely noticeable that this will not be as fast of a monitor as something gaming dedicated in terms of response time, however it is much more responsive than a normal 60FPS TV or other productivity based screens. I also have a 15 inch macbook retina display, and the response time on this monitor is atleast twice as good. Unless you are an ultra competitive high refresh gaming enthusiast, you will not notice any kind of input lag or poor pixel response in this monitor. It is just as good or better than playing console on a high end TV, and in gaming scenarios, I personally can not tell the difference between the response time on this monitor and my LG gaming monitor. It is only when using UFOTest that the difference becomes very apparent, and this mainly comes down to the difference in FPS. If I ran my dedicated LG gaming monitor at 60FPS, the response would be about the same.

In short, if you are used to gaming on console with a TV and are looking for a responsive 60FPS display to prioritize image quality and play mostly singly player games with high settings, get this one and you will not have any regrets. If you are looking for the fastest thing in gaming and play mostly multiplayer competitive games you shouldn't even be reading this review. If you CAN afford it, I would highly recommend a 4K120 gaming monitor for the best of both worlds. In this price point with realistic expectations in mind, this is a fantastic monitor!

30 people found this helpful

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George P

LG is the best

Reviewed in the United States on April 1, 2024

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

This is the third LG product I have bought and all three of them perform perfectly.
Crisp, clear, reliable and easy on the eyes!
I can't believe the difference between my last computer monitor and my new LG monitor.
I highly recommend LG products.

Helpful

Yin Chang

LG 27UN850-W VS. Dell U2720Q

Reviewed in the United States on June 2, 2021

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

I have four 4K monitors:
LG 27UN850-W X2, one desk dual monitor setup (will be referred below as LG)
Dell U2720Q X2, one desk dual monitor setup (will be referred below as Dell)

I use LG, my spouse uses Dell.
In my mind LG is better to fit my needs.
From my spouse's point of view, Dell is preferred over LG.

1. Why does LG better fit my needs?
a) both LG and Dell have anti-glare screens. But I found Dell reflects a little bit more than LG. I have a “designer white” desk. Dell’s reflection is noticeable especially during the evening when using the desk lamp and watching videos. On the other hand, LG does not distract my attention due to glare. The Dell glare issue could be a combination of my desk color and light source setup. But given the exact same setup, LG does not distract my attention due to reflection.

b) LG has ports arrangement on the back, rather than at the bottom. I’d like to try different gadgets during the past weeks. The LG’s design makes it super convenient to plug/unplug cables, firetv stickers. Dell’s traditional port design also works well thanks to the best ergonomics stands (will come to it later). Adding devices/cable to Dell just by simply rotating the screen.

c) LG has a user-friendly screen control joystick. Dell’s traditional button is not comparable. Again, because I’d like to change settings, and try different gadgets.

2. Why does Dell better fit my spouse's needs?
Ergonomics, ergonomics, ergonomics!
My spouse needs ergonomic monitor stands. Dell’s design fits the bill perfectly. A complete freedom of adjustment with extremely wide ranges, at any direction.

3. What do the two monitors share in common?
They are all very good monitors for regular day to day work/entertainment. Again we are not professional graphic designers nor video editors. For average users like us, you cannot go wrong with either LG/Dell. For most of the time, all our monitors work in reader/office/text mode. When it comes to entertainment, LG/Dell, for me, do not make much difference. I cannot tell the difference when watching videos or playing games, or editing family photos. They look pretty much the same for casual entertainment. I also placed the LG/Dell side by side, playing the same youtube 4K HDR videos with all monitors in full HDR settings, but I cannot tell which is better. They all calibrated to their own standards. In their own “reference frame”, they all look very beautiful.
Btw, isn’t the best entertainment to find a job to do what you like? The office/text mode might be the best entertainment mode for me :-)

Finally, because this is my serious review under this LG product tag. I will add 3 more points for LG only:
1. LG has a bulky voltage transformer shown in the picture. The power cable on each side of the voltage transformer is about 55 inch (total about 110 inch including the transformer in the middle), long enough for any home office setup. However, for a standing desk, I have to spend a bit extra effort to hide the bulky transformer in the cable management tray.

2. One of the LG monitors has a very tiny issue with the stand. I returned it and bought a new one. The problem went away.

3. LG has a builtin speaker that can be easily used with fireTV stick 4K, just plug and play. If I want to control volume, I’m using the LG monitor joystick, or a separate speaker or a bluetooth (Jabra evolve 75), where output device with builtin volume controls. The joystick also makes the hdmi input switch very easy, fireTV to Nvidia Quadro, very smooth joystick operation. But better to get a 4K HDMI switch.

36 people found this helpful

Helpful

Amzn Prime User

Beautiful display - works on Mac M1 but I returned it

Reviewed in the United States on December 31, 2023

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

When i first bought this LG display, I fully intended to keep it thinking that a 4k monitor would be a great upgrade and useful for my video editing work. When i got it, it came right up on my MBA M12020 but when I went to set the display info using the 4k setting made all of the fonts too small to read. I didn't think too much of it at the time and just set the display resolution to 2560x1440 just get going and I would look into why I could not set it on 4k later.

I was also looking for gaming systems for my grandson and picked up a Acer Nitro 27" FHD display for him. I loved the curved display! After watching a bunch of youtube videos on displays, including this Lg, I ran across an article titled "Mac external displays for designers and developers" in bjango - MUST read for a Mac user. It explained the limitations of the Mac graphics system and pointed out that 4k monitors (for the most part) cant display readable text when set to 4k. You have to go to 5K (big bucks) a much smaller 4k display (23in) or go to QHD(2560×1440), QWHD (3840×1600) or FHD (1920×1080). Anything else and the fonts will not be usable at the max resolution. Yes, I could go back and change all of font sizes on the apps but its a lot of work that could have be repeated with updates.

I chased all of these display sizes down (and being curved) and Lg doesn't make (as of Jan 23) a curved 27", but makes much bigger ones -34. I got one of those and it was beautiful, worked with my Mac using displayport but was HUGE.

Dell makes some but the 27" IS NOT SUPPORTED FOR MACS AND IT DOESN'T SAY THAT UNLESS YOU LOOK IN THE SUPPORT SECTION. Worse yet, their reviews are littered with complaint about not working well with Macs. Some saying that using displayport interface works Ok, but I didn't want to take the chance. Also, some monitors seem to be picky about the quality of the cable so read the Dell reviews carefully.

For the most part, LG monitors seem to work well with all Macs. Do search for Mac in the reviews before you buy!!

In the end I went with a QHD Acer Nitro Curved monitor. It doesn't have software drivers for Macs but it works well and it was $140 less than this one.

2 people found this helpful

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Abraham Stapleton

Perfect Resolution

Reviewed in the United States on April 25, 2024

Display Size: 27 InchesStyle: Power Delivery: 60WVerified Purchase

I got this monitor for productivity. I use it in correlation with my MacBook using an anker dongle. Works amazing and have had no issues with it! The picture quality is absolutely stunning. Highly recommend to anyone looking for a nice monitor that won't break the bank.

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

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