Top 8 Best 4k Monitors to Buy in 2021 – Reviews

While 4k TVs are becoming very common, the popularity of 4k monitors is just beginning to grow. 4k monitors have a lot to deliver, whether you’re looking for a better multitasking experience for work or want a more interactive gaming experience. Although they used to be very costly, they have recently started to drop in price as 4k becomes more popular and it is supported by more devices. See also our recommendation on best TV monitor, the best budget monitors, the best 4K laptops, the best 4K projectors.

Best 4k Monitors – Reviews

1. Best 4k Monitor: LG 27UK650-W

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The best 4k monitor we’ve reviewed is the LG 27UK650-W. It’s a flexible choice designed primarily for business use, but with ample gaming efficiency to satisfy most gamers. A high pixel density results in its 4k resolution and 27 inch screen size, delivering sharp text and informative images. It has an IPS panel with broad viewing angles, making it simple to share work or content. The handling of reflections is decent, and in well-lit settings it becomes bright enough to fight glare. Unfortunately, it can’t swivel at all but it has height and tilt adjustment and can rotate to portrait mode.

This delivers good image efficiency. It has excellent out-of-the-box color precision, near total sRGB color space exposure, and outstanding gradient handling. For a responsive desktop and game experience, it has a fantastic response time to produce consistent images in fast-moving scenes and incredibly low input lag. The refresh rate is reduced to 60Hz; for most individuals, it should not be a challenge, as 4k gameplay on the graphics card is still incredibly demanding. To minimize screen tearing, it has native FreeSync support and is consistent with NVIDIA’s G-SYNC too.

There are not too many additional features, only a black stabilizer function that in dark scenes allows objects more recognizable and a super-resolution feature to upscale images of lower resolution. It has HDR support, but it does not view a wide variety of colors and is not bright enough to allow HDR content show up with specular highlights. It has a flicker-free backlight on the upside, which will further decrease eye pressure. All and all, it’s a well-rounded monitor that most users can be delighted with.

PROS

  • Excellent resolution and size allow for multitasking.
  • Input lag is very low.
  • Wide viewing angles.

CONS

  • Lacking HDR performance.
  • No local dimming support.

2. Best Cheaper 4K Monitor: LG 27UD58-B

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Whether you’re purchasing on a relatively small budget, then check out the LG 27UD58-B. With its thick bezels and shiny plastic stand, it really doesn’t look as elegant as the LG 27UK650-W, and you’re still receiving a 4k resolution and 27 inch screen at a more reasonable price. In order to minimize screen tearing while gaming, it also has great color accuracy, a good response time, and variable refresh rate support. There are few compromises. The stand has incredibly limited ergonomics and requires change of tilt only. It also doesn’t get as bright and has smaller points of sight.

Overall, due to its elevated ergonomics, greater brightness, and larger viewing angles, the  LG27UK650-W is a better option. The 27UD58-B, however, is a very good alternative if cost is a problem.

PROS

  • Input lag is very low
  • Solid colors and backgrounds are uniform
  • High resolution is great for multitasking

CONS

  • Blacks appear gray and blotchy
  • Prominent backlight bleed

3. Best 4k Monitor For HDR: LG OLED48CXPUB

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The LG 48 CX OLED is the best 4k monitor we’ve reviewed for viewing HDR content. Even though it’s technically a TV, it’s marketed as a monitor, and it has almost all the features to offer an awesome HDR experience. As all OLED TVs, due to its infinite contrast ratio, it can create perfect blacks, making it an outstanding option for dark room watching. There is no blooming around bright artifacts because it does not have a backlight, which is a concern typical to LED TVs. Its big picture quality make it ideal for large rooms with large seating areas, perfect for family movie nights.

If you think about picture quality, then you’re in luck, as this TV is out-of-the-box, well-calibrated. It manages gradients well which helps to reduce banding, and with almost complete coverage of the widely used DCI P3 color space, it can display a wide color full spectrum. Its response time is almost instant, and to minimize motion blur, it has a Black Frame Insertion function, resulted in crisp objects in fast-moving sequences. However as low frame rate content can tend to stutter, the quick response time comes at a cost. To make motion look smoother, you may interpolate content at up to 120 frames per second, but the ‘soap opera effect’ may not be to everybody’s preference.

For gaming, it does have a very low input latency, and FreeSync and G-SYNC are enabled to minimize screen tearing. Unfortunately, because of the static nature of the graphical user interface, there are chances of irreversible burn-in on OLED tables, which is a valid concern. That said, to minimize the risks, such as pixel shifting, there are functionality built-in. All and all, this is an excellent option if you want the best HDR experience and aren’t concerned about burn-in.

PROS

  • Displays perfect blacks.
  • Extremely wide viewing angles.
  • FreeSync VRR support.
  • Near-instant response time.
  • Outstanding reflection handling.

CONS

  • Risk of permanent burn-in.
  • Aggressive automatic brightness limiter (ABL).
  • Stand doesn’t allow for any adjustments.

4. Best 32 Inch 4k Monitor: LG 32UD99-W

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The LG 32UD99-W is the best 4k monitor we’ve reviewed with a 32 inch screen. It’s a sleek-looking system developed mainly for workplace use but with ample gaming quality to please most individuals. It has a wide 32 inch screen and a 4k resolution, perfect for playing immersive games and multi – tasking. It will not have the best manipulation of reflection, but it’s getting clear enough to resolve glare. Thanks to its large viewing angles, pictures remain correct when viewed from the side; however its ergonomics is poor because it lacks swivel change. And even for an IPS screen, its contrast ratio is good, blacks still look dark gray in the night.

It has good color quality outside of the box. With full coverage of the SRGB color space, it has an excellent color gamut, and it also supports HDR. Its rapid reaction time helps offer fast-moving content with minimal motion blur, but the refresh rate is limited to 60Hz, and it doesn’t have a Black Frame Insertion option. That said, except with the most strong PCs, playing games at 4k over 60Hz is very taxing, so for most people, it shouldn’t be a challenge. Input lag is very short, and it follows the technology of variable refresh rate FreeSync.

There are several interfaces, including two USB 3.0 ports and a DisplayPort Alt Mode enabled USB-C input that allows you to view an image from a supported device and charge it with a single cable at the same time. There’s also a pair of built-in microphones, and it has a Picture-by-Picture feature that helps you to concurrently view pictures from two sources. Overall, for both work and play, it’s a feature-rich monitor with plenty of screen real estate.

PROS

  • Image remains accurate at an angle.
  • Excellent low input lag.
  • Displays a wide color gamut.

CONS

  • Doesn’t handle reflections well.
  • 60Hz refresh rate is limiting for gaming.

5. DARK ROOM ALTERNATIVE: BENQ EW3270U

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You can go with a VA panel monitor, such as the BenQ EW3270U, if you always work or play in the dark. Like the LG 32UD99-W, it is a 4k model with a 32-inch screen, but the VA panel is much perfect suited for dark spaces, as it has a high contrast ratio to create deep blacks. In order to minimize screen tearing while gaming, it also has a fast response time, low input lag, and VRR support. There are, unfortunately, few downsides. Its ergonomics are considerably worse and allow just tilt change, and its lower peak luminosity means that it will not be able to combat glare. In comparison, it has smaller viewing angles, so pictures from the side look washed out.

Overall, because it has more features, broader viewing angles, and considerably improved ergonomics, the LG is a better option. If dark room productivity is essential, then go for the BenQ.

PROS

  • Good dark scene performance.
  • Very good gray uniformity.
  • 4k resolution is great for multiple windows.

CONS

  • Can’t get bright enough for HDR.
  • Image degrades at an angle.

6. CHEAPER ALTERNATIVE: LG 32UD59-B

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There’s a better alternative, the LG 32UD59-B, if you think the LG 32UD99-W a little too pricey. It also has a 32-inch frame, a 16:9 aspect ratio, and a refresh rate of 60Hz. However in order to create darker blacks, it uses a VA screen, which has a much better contrast ratio, but its viewing angles are considerably worse. In most spaces, it can work fine as it has a reasonable peak brightness and better handling of reflection, but in very bright rooms it can be a challenge. Unfortunately, with only height and tilt corrections available, it has very bad ergonomics, and it doesn’t support HDR. That said, with excellent gradient handling and decent out-of-the-box color accuracy, it still has a 10-bit screen.

Overall, the 32UD99-W has many more features and performs better in general, but if you’re shopping on a tight budget, the 32UD59-B is a good alternative.

PROS

  • Deep and uniform dark scenes
  • 4k resolution is great for multiple windows
  • Solid colors are uniform

CONS

  • Image degrades when viewed from the side

7. Dell U2718Q Monitor Review

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The Dell U2718Q is a 4k IPS monitor that is really good. It has excellent ergonomics, like most Dell monitors, so it’s quick to change it to an optimal viewing location. Out of the box, it has good precision and wide viewing angles, perfect for making media or sharing the screen with someone else. Areas with contrasting color look fantastic, with gradients without visible banding. Unfortunately, this does not add much as it supports HDR, since it does not display a wide color gamut and it has a poor contrast ratio, but in a dark space, blacks look gray.

For most applications, the Dell U2718Q is a decent monitor. It has large viewing angles and superb ergonomics, perfect for use as a computer in the workplace. It’s a decent simple gaming monitor, but most professional gamers would definitely not be happy with it. For media production or viewing videos, the high-resolution screen is also fantastic.

PROS

  • Wide viewing angles.
  • Easy to adjust stand with great ergonomics.
  • Outstanding gradient handling.

CONS

  • Poor HDR performance.
  • Mediocre black uniformity and visible backlight bleed.

8. Philips Momentum 436M6VBPAB Monitor Review

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The Philips Momentum 436M6VBPAB with excellent peak brightness, rich blacks, and an incredibly broad color gamut is a respectable 43 inch, 4k monitor. Although it comes with certain gaming functionality, such as FreeSync variable refresh rate (VRR) support and an incredibly low input lag, its refresh rate of 60Hz is reduced and movement is blurry. Unfortunately, the viewing angles are sub-par, as most VA displays, but on this big screen, if you try to sit back and watch a film, you lose image accuracy at the edges. It comes with a remote, though, which is special for monitors, perfect for sitting back and enjoying your favorite videos when you need to.

A decent monitor for most purposes is the Philips Momentum 436M6VBPAB. It is best suited for its deep blacks, wide screen, 4k resolution, and the added remote is a good bonus for viewing games. It could also be a good choice for console gaming with its low input lag, but the 60Hz refresh rate could be limiting for some computer gamers. Unfortunately, due to the strange subpixel arrangement, there is obvious crosshatching, so it may not be well enough for office use.

PROS

  • Deep, uniform blacks.
  • Outstanding peak brightness.
  • Great wide color gamut.

CONS

  • Bad local dimming.
  • Noticeable crosshatching that can be distracting for desktop use.

Final Thought

Our suggestions above are what we found are the best monitors available on the market. These are the best monitors to buy in every price range for you. We have analyzed the features and functions of each product and reviewed our best for the buyers.

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