The 6 Best 4k Monitors - Spring 2021 Reviews

Updated
Best 4k Monitors
169 Monitors Tested
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Although 4k TVs are becoming very common, 4k monitors are just starting to grow in popularity. Whether you're looking for a better multitasking experience for work or want a more immersive gaming experience, 4k monitors have a lot to offer. Although they used to be very expensive, they have recently started to drop in price as 4k becomes more popular and more devices support it.

We've tested over 155 monitors, and below are our recommendations for the best 4k monitors that are available for purchase. Also, check out our recommendations for the best 4k gaming monitors and the best 1080p and 1440p monitors.


  1. Best 4k Monitor For Office Use: Dell U2720Q

    7.9
    Mixed Usage
    8.3
    Office
    7.5
    Gaming
    7.9
    Multimedia
    8.2
    Media Creation
    6.8
    HDR Gaming
    Size 27"
    Resolution 3840x2160
    Max Refresh Rate
    60 Hz
    Pixel Type
    IPS
    Variable Refresh Rate
    No VRR

    The best 4k monitor for office use that we've tested is the Dell UltraSharp U2720Q. It has a large 27 inch screen that provides plenty of space to open multiple windows side-by-side. The stand has excellent ergonomics, allowing for height, tilt, and swivel adjustments, and it can also rotate to portrait mode in either direction.

    It's well-suited for content creators as it has full sRGB and great Adobe RGB coverage. Gradient handling is outstanding, and there are no signs of color bleed. Its IPS panel has wide viewing angles, which means you don't lose image accuracy when viewing from the side, great for sharing your work with colleagues. There's a generous selection of ports, including three USB 3.0 and two USB-Cs. One of the USB-C inputs supports DisplayPort Alt Mode, which lets you dock your laptop and charge it with a single cable. The other can be used for charging even when the monitor is off and is conveniently located on the side for easy access.

    Sadly, color accuracy is only decent out of the box, so you may need to calibrate it first, but this can also vary between units. The backlight is entirely flicker-free, and there's also a blue light filter to help reduce eye strain. Visibility is good in most lighting conditions, but it's best to avoid placing it opposite bright lights because it doesn't handle reflections all that well. Overall, it's a great 4k office monitor that should meet most people's needs.

    See our review

  2. Gaming Alternative: LG 27GN950-B

    Size 27"
    Resolution 3840x2160
    Max Refresh Rate
    160 Hz
    Pixel Type
    IPS
    Variable Refresh Rate
    FreeSync

    If you want a more gaming-oriented 4k monitor, then check out the LG 27GN950-B. Like the Dell UltraSharp U2720Q, it has a 27 inch IPS panel with wide viewing angles. However, it has a much higher 160Hz refresh rate, quicker response time, and lower input lag to deliver a significantly more responsive gaming experience. It has much better accuracy out of the box and gets a lot brighter in HDR, enough to deliver a pretty decent experience. Unfortunately, it doesn't allow for any swivel adjustments, and it doesn't handle reflections all that well. Also, it requires a graphics card that supports Display Stream Compression to achieve its full 160Hz refresh rate.

    If you only plan on using the monitor for work, the Dell is a better choice because it has better ergonomics and USB-C ports. However, if you want the best gaming experience, then go with the LG.

    See our review

  3. Best 4k Monitor For HDR Gaming: ASUS ROG Strix XG27UQ

    8.3
    Mixed Usage
    8.2
    Office
    8.6
    Gaming
    8.1
    Multimedia
    8.4
    Media Creation
    7.5
    HDR Gaming
    Size 27"
    Resolution 3840x2160
    Max Refresh Rate
    144 Hz
    Pixel Type
    IPS
    Variable Refresh Rate
    Adaptive Sync

    The best 4k monitor for HDR gaming that we've tested is the ASUS ROG Strix XG27UQ. It's a high-end model that's a bit on the costly side, but if you want a better HDR experience than some other monitors, this one won't be disappointing. It's packed with gaming features, including HDR10 support, and it displays the wide color gamut needed for HDR content.

    It has a high 144Hz refresh rate with an incredible response time for clear motion. However, with the lack of HDMI 2.1 support, you can only achieve its high frame rate with its 4k resolution over a DisplayPort connection with VESA Display Stream Compression. It's tested to be compatible with both FreeSync and G-SYNC to reduce screen tearing, and it has very low input lag. If you also plan on gaming at 60Hz, it still has a quick response time, so fast-moving content shouldn't have any motion blur. It also has fairly wide viewing angles and good ergonomics, making it a good choice if you want to use it for co-op gaming.

    Unfortunately, its IPS panel has a low contrast ratio that makes blacks look gray when viewing in the dark. It has an edge-lit local dimming feature, but it doesn't do much to improve the contrast because there are minimal dimming zones. Still, if you want to use it for HDR gaming, it has decent peak brightness, enough to make some highlights stand out. Overall, this is one of the best 4k monitors we've tested.

    See our review

  4. Larger Alternative: LG OLED48CXPUB

    Size 48"
    Resolution 3840x2160
    Max Refresh Rate
    120 Hz
    Pixel Type
    OLED
    Variable Refresh Rate
    FreeSync

    If you want something bigger, then look into the LG OLED48CXPUB. This is a TV that we tested as a monitor, so it doesn't have an ergonomic stand like the ASUS ROG Strix XG27UQ. However, with its OLED panel, it can individually turn off pixels, resulting in an infinite contrast ratio and perfect black uniformity, making it a fantastic choice for dark room gaming. Thanks to its HDMI 2.1 support, you can easily connect your PS5 or Xbox Series X and play 4k @ 120Hz games in HDR. It supports Dolby Vision and HDR10 and displays a wide color gamut, but once again, its HDR peak brightness is just decent, so colors may not pop how the creator intended. Sadly, OLEDs have the risk of permanent burn-in, so we suggest watching varied content if you're going to use it as a monitor.

    All things considered, the ASUS is the best 4k monitor for HDR gaming, but if you plan on using it for watching varied content and don't mind the risk of permanent burn-in, check out the LG.

    See our review

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

    7.8
    Mixed Usage
    8.0
    Office
    7.6
    Gaming
    7.8
    Multimedia
    8.0
    Media Creation
    6.9
    HDR Gaming
    Size 32"
    Resolution 3840x2160
    Max Refresh Rate
    60 Hz
    Pixel Type
    IPS
    Variable Refresh Rate
    FreeSync

    The best 4k monitor with a 32 inch screen we've tested is the LG 32UD99-W. It's a great office monitor with a simple and elegant design that fits easily into most office settings. The stand allows for height and tilt adjustment, and you can also rotate the screen to portrait mode. The lack of swivel adjustment might be an issue for some, especially if you need to share your work with a colleague or client, but thankfully, you can VESA-mount it if you need increased adjustability.

    Like most IPS panel monitors, it has wide viewing angles, so you don't lose image accuracy when viewing from the side. It doesn't handle reflections all that well, but it gets bright, enough to overcome glare in most lighting conditions. It has full sRGB and great Adobe RGB coverage, and it can display a wide color gamut for HDR content. There are two USB 3.0 and one USB-C port. The latter supports DisplayPort Alt Mode, which lets you dock your laptop and charge it simultaneously with a single cable.

    Sadly, its contrast ratio is quite decent for an IPS panel, but blacks still appear grayish, which isn't ideal for dark rooms. Response times are good, although the refresh rate is still limited to 60Hz. There are Picture-in-Picture and Picture-by-Picture modes that let you display two input signals at once, great features for those working on two computers. If you're shopping for a large 4k monitor, this one is worth considering.

    See our review

  6. Dark Room Alternative: BenQ EW3270U

    Size 32"
    Resolution 3840x2160
    Max Refresh Rate
    60 Hz
    Pixel Type
    VA
    Variable Refresh Rate
    FreeSync

    If you like working or gaming in the dark, then you should consider a monitor with a VA panel, like the BenQ EW3270U. Like the LG 32UD99-W, it has a 32 inch screen with a 4k resolution, but it uses a VA panel with a much higher contrast ratio to produce deep blacks. The viewing angles are expectedly narrower, but they're actually quite decent for a VA panel, so you don't lose too much image accuracy when viewing from the side. Unfortunately, it doesn't have any USB ports, and it lacks Picture-in-Picture or Picture-by-Picture modes. Also, its ergonomics are terrible because it only allows for tilt adjustment. On the plus side, it has a quick response time and low input lag if you want to use it for gaming.

    Overall, the LG is a better monitor because it has wider viewing angles, superior ergonomics, and more features. However, if dark room performance is important to you, and you don't mind a few compromises, the BenQ is a good alternative.

    See our review

Notable Mentions

  • Dell S2721QS: The Dell S2721QS is a cheaper alternative to the Dell UltraSharp U2720Q, but it lacks USB-C input, and it's hard to find due to low availability. See our review
  • LG 27UK650-W: The LG 27UK650-W is a good 4k monitor, but it's an older model that may be harder to find. See our review
  • Philips 436M6VBPAB: The Philips Momentum 436M6VBPAB is a 43 inch monitor with a 4k display that's an ideal choice for media consumption, but it has slow response times, and it has a BGR sub-pixel layout that can affect text clarity in some instances, which might bother some people. See our review
  • Dell S3221QS: The Dell S3221QS is a good alternative to the BenQ EW3270U if you need Picture-in-Picture/Picture-by-Picture or better ergonomics. However, it has slower response times and lacks USB-C connectivity. See our review
  • Dell S3221QS: The Dell S3221QS is cheaper than the LG 32UD99-W, but has a slower response time and has narrow viewing angles due to its VA panel. See our review

Recent Updates

  1. Apr 01, 2021: Updated text for clarity; added the Dell S3221QS to Notable Mentions.

  2. Mar 04, 2021: Minor text and structure changes; no change in recommendations.

  3. Feb 12, 2021: Replaced Acer Predator X27 with ASUS ROG Strix XG27UQ.

  4. Jan 15, 2021: Minor text and structure changes; no change in recommendations.

  5. Dec 17, 2020: Removed LG 27UK650-W, LG 27UD58-B, LG 32UD59-B. Added Dell S2721QS, LG 27GN950-B, Acer Predator X27.

  6. Oct 23, 2020: Replaced Acer Predator X27 with LG 48 CX OLED.

All Reviews

Our recommendations are based on what we think are the best 4k monitors currently available. They are adapted to be valid for most people, in each price range. Rating is based on our review, factoring in price and feedback from our visitors.

If you would prefer to make your own decision, here is the list of all of our 4k monitor reviews. Be careful not to get too caught up in the details. Most monitors are good enough to please most people, and the things we fault monitors on are often not noticeable unless you really look for them.

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