• 2.0 out of 5 stars


    I've been using this monitor for about 6 months with a 2017 MacBook. After 5-10 minutes displaying a static image on screen, like a pdf, the image will ghost for extended periods of time, and new patterns of image retention will appear before the older ones vanish. Sometimes I look at the screen and wipe my eyes because I think I'm hallucinating or dizzy. This monitor uses an LG-produced panel, obviously, however I have not experience this same issue with my 5K iMac, which also uses an LG panel. The build quality is so-so; even on a sturdy desk you will experience a noticeable amount of wobble, which is annoying if you come from using an iMac. The display is plastic, not glass, and is prone to scratching (never use anything but a clean microfiber cloth to clean). Overall, it performs as advertised as far as interface and ease of use goes-I haven't experience the sleep/wake issues that others have reported, however the brightness adjustment sometimes fails to work until I've opened and closed my MacBook, which can be very annoying.

    Overall, I don't regret purchasing this monitor when it was still at the promotional price, but given that Apple has stated it will make a "professional" monitor to go alongside the upcoming "modular Mac Pro", I'd wait it out to see what they'll have to offer. If the new monitor is anything like the old Cinema and Thunderbolt Displays and current iMacs, which there's no reason to believe they won't be, the UltraFine 4 and 5K monitors will soon be relics.

    1 of 1 people found this useful

  • 5.0 out of 5 stars

    Great monitor.

    No flicks, total control with your Mac keyboard... The secret? Download the LG Screen Manager App and automatically, it will update its firmware, and that's it... Everything is working perfect.


    - Great image, same as my Macbook Pro 2016 (but in 21 inches)
    - Just 1 cable
    - No buttons
    - Good sound


    - Cheap plastic

    1 of 1 people found this useful

  • 5.0 out of 5 stars

    Love this monitor

    Works great with my 2017 MacBook Pro. You don't need to buy anything; it comes with the cable that you attach to your computer, and you don't need speakers because the built-in ones are pretty good. Overall a great product for a clean desk setup

  • 5.0 out of 5 stars

    Great Display

    Absolutely happy with this purchase. No issues whatsoever. Perfect. I had a different 4K display from another maker and had nothing but issues. This LG plugged in and worked perfectly right away.

    2 of 2 people found this useful

  • 3.0 out of 5 stars

    Good picture. Can't adjust brightness. LG app is awful.

    Just bought display at the Apple Store. The screen always just shows the same high level of brightness regardless of light conditions on a 2017 MacBook Pro w/ Touch Bar. Won't respond to any of the following:

    1. When using the LG display as a secondary display, press the "<" button and then control-click the small brightness increase/decrease buttons -- that has no effect for me.

    2. I also tried changing the LG display to be the primary display, but the touch bar on the MacBook Pro still only controls its own screen.

    3. Finally, I downloaded the LG Screen Manager app from LG and attempted to use it to download a firmware update. That app could not even tell what firmware version was currently installed on the monitor and refused to pull down any updates. I then selected the factory reset option on that app, but it had no effect. I can't believe Apple encourages users to download ANY app from LG.

    1 of 1 people found this useful

  • 5.0 out of 5 stars

    Amazingly good screen

    Please take a few minutes and update firmware of your display. Lookup LG Display Manager software, install it and update firmware. You will be rewarded with the most beautiful display currently on the market. Same advice for the LG 5K display.

    2 of 2 people found this useful

  • 5.0 out of 5 stars

    No Issues - Pretty Happy

    I read all the reviews, and candidly, they made this monitor seem horrible. So I went out to Target and bought an Acer 4k monitor, which was horrible for reasons beyond the scope of this message. I returned it and went to the Apple store and mentioned all the issues with the reviews of their new monitor and they said, "if you don't like it or there are issues, just bring it back". I brought it home and I have a new MacBook pro. Essentially this is simply a plug and play monitor (USB-C to USB-C). The color is awesome, I have had zero issues with the sound that people are mentioning, and zero issues with the additional 3 USB-C ports on the back. Yes, it is very expensive, but so was the Thunderbolt monitor from a few years ago. The upside is, it's great (no bitmapping for designers) and you don't require crazy HDMI cables as a monitor one would buy off the shelf at Target does. As a disclaimer, I have the 4k monitor. The apple team was transparent in mentioning the larger 5k monitor is not as good because it requires an additional adaptor, which slows it down. So my recommendation is the smaller monitor which is the one I have. Good luck.

    11 of 11 people found this useful

  • 5.0 out of 5 stars

    An absolutely stunning display

    I wanted a screen for my MacBook Pro and bought this with some trepidation due to several negative reviews. Perhaps I'm lucky but, for me, it's been an absolute dream and perhaps one of the best pieces of computer equipment I've ever bought.

    • Unbox monitor
    • Plug it in
    • Connect the supplied USB-C cable to the MacBook Pro
    • Hey presto! Monitor comes to life with the most amazing image quality. Not only that, it charges the laptop as well.

    Unplug the laptop and the monitor automatically turns off. Love that, too.

    One thing to bear in mind is that the audio output automatically switched from the MacBook Pro to the monitor (at full volume) so that shocked me when an e-mail came in. Simple to change that in System Prefs of course.

    But really, it's a stunning piece of kit. Very solidly built and really, the picture is just amazing.

  • 3.0 out of 5 stars

    Really nice Monitor but lot of bugs

    I bough a new LG 4k Monitor for my MacBook Pro last month. I have issues with the sound, everything go perfectly and randomly it start making weird noise (like an old Tv when you're not on good channel). I don't find any website to update de firmware of the Monitor.. I have the Mac IOS High Sierra 10.13.1 (the latest). I contacted Apple but they told me to contact the manufacturer of the product. Also, I have bugs with the touch bar menu for the luminosity of the Monitor, sometimes it doesn't appear. Finally, I looked on the Internet to see if the 4k 21.5in screen had a ambiant light sensor and it say "yes" but looks like mine doesn't work. I need to change the luminosity manually each time. Do you have any informations how to troubleshoot theses issues ? I'm a little bit upset for a monitor that we pay 1,000$ CAD. Are they going to make an update soon or anything ?

  • 5.0 out of 5 stars

    LG Monitor with new MacBook Pro

    I just bought this monitor for use in my office with new MacBook Pro. It works beautifully. NO set up issues whatsoever. It literally popped out of the box, (well packaged), and plugged into the new MacBook Pro with the one cable in less than 5 minutes.

    Very pleased with the product and combo so far.

    Like the vertical adjustability of the LG Monitor stand.

    9 of 9 people found this useful

  • 3.0 out of 5 stars

    Crisp but smaller than you imagine. One dead pixel.

    This monitor is easy to set-up and is crystal-clear. It works seamlessly with the latest MacBook Pro (so much so that I've ditched my ageing desktop Mac completely). Negatives: It's small. I wish that I had saved enough for the 27" model. Whilst the solidity of the stand is excellent and it adjust vertically and tilts with ease, the lack of any swivel means that I have to lift the hefty base plate to move it (we don't all sit locked into a single seating position). Finally, and really annoyingly, I have a dead pixel which I only discovered when trying to edit it out of a photo! It's probably not enough to battle over a belated return, but do make sure that you set the background to plain white to test it when you get one as desktop backgrounds can easily mask these imperfections.

    2 of 2 people found this useful

  • 1.0 out of 5 stars

    Questionable Design, Constantly crashes when plugging in

    Without fail every time I plug in this monitor the entire system freezes requiring a restart. While this has been buggy before 10.13, 10.13 has taken this to a whole new level of buggyness.

    This is on a 15" 2017-maxed-out-macbook-pro and using LG's provided screen manager utility so it's quite clear problems still exist with this product even after routergate.

    Otherwise I'd love to say the monitor is great for the price - with decent colour and resolution for a 21" screen.

    But it's questionable design makes it's a shame it doesn't work with more devices, and some standard usb ports and/or ethernet on the back would be much more useful than usb 2.0-speed usb c ports. What are you actually imagining we plug into these?

    All in all after owning this for 3 months or so I can say this would be a much better screen all round if they had just put some decent standard connectivity onto it.

    3 of 4 people found this useful

  • 2.0 out of 5 stars

    loose cable

    I bought the new 13" MBP and LG 22MD4KA-B from Apple in late 2016.

    The USB-C to USB-C cable supplied by LG has loose-fitting ends. For example, if you simply bump the cable, the LG goes black. Both ends are loose. It doesn't snap firmly in to my MBP nor into the monitor.

    Twice I have contacted LG and each time they sent me an identical new cable.

    Apple support seemed unaware of the issue and it isn't their product but they said to bring it to the Apple store which I will when I can get there.

    3 of 3 people found this useful

  • 5.0 out of 5 stars


    Bought in February this year.
    Excellent image quality and clarity. I've never had screen issues as reported by other users.

    0 of 1 people found this useful

  • 4.0 out of 5 stars

    After Firmware-Update of the LG - all is working as expected

    Hi folks,

    I love the LG UltraFine. But you have to know a few things before using it without pain:
    - Controlling the ambient light you have to press the CONTROL-key and change the light by the two control buttons (brighter/darker). Slider won't work.
    - Installing the LG Screen Manager app will update the firmware of the LG. After the update all problems related to sleep mode are gone.
    - Ambient light sensor isn't supported by macos at the moment. Perhaps with macos 10.13. (crossing fingers).

    I have mine LG connected to the OWC TB 3 dock. Replaced the short TB3 cable from OWC with a 1 meter Belking TB3, which improved performance, I think so. The original 0.5 meter long cable wasn't useful for me, to short. Despite the specs of the Belkin cable (20 Gb/s instead of 40) the cable is working without a hassle. :-)

    5 stars if apple will support the Ambient Light Sensor.

    14 of 15 people found this useful

  • 5.0 out of 5 stars

    Great as expected

    Crisp, clear, fine sound. Integrates terrifically with MBP15-2016.

  • 5.0 out of 5 stars

    Drop-Dead Gorgeous

    I would not have believed how beautiful this monitor's screen is. Brilliant and no setup other than downloading software and firmware updates. Matched with Magic Keyboard and Trackpad, it makes for a very nice dock setup for my MacBook Pro. The only thing it's missing is the camera, but that's not a deal-breaker for me. Speakers are just as good as MacBook's as well.

    7 of 7 people found this useful

  • 4.0 out of 5 stars

    Very, very good, but...

    Purchased in August 2017 direct from the Mac Store. I am using with MacBook Pro (Touch Bar) 15".

    Great monitor that is more than big enough due to the real estate of the 4k display.

    Great design
    Amazing screen and resolution. 21.5' is plenty big at 4k
    Easy movement of the screen up, down and tilt
    Super simple to use. No buttons! Plug in the USB-C at the back and it auto finds and connects
    The 3 other ports at the back have helped unclutter my desk

    No Camera and Microphone. Very dis-appointing at this price point.
    USB C ports at the back are only USB 2, which is a very silly limitation. And does strike one as nickel and diming the customer.

    Other than those 2 niggles, I am loving using it and it is a seamless integration with the Mac. I would recommend.

    4 of 4 people found this useful

  • 2.0 out of 5 stars

    Display great, badly let down when sound plays as white noise after sleep

    While the quality of the display itself is really good, I've been very disappointed to find that if my MacBook has been asleep for a length of time, on wake the the LG display plays any sound as white noise or distorted sound with white noise mixed in. As a result I could not recommend this monitor to anyone, which is a shame. Also only supporting USB2 on the monitor hub is equally disappointing but I was aware on this on purchase.

    4 of 4 people found this useful

  • 5.0 out of 5 stars

    Excellent Display!

    I love the minimalism of it... two cords thats it. One bringing power to the monitor the other for display/power to the laptop. The stereo on this thing is so impressive!!!

    4 of 4 people found this useful