If you are shopping for the 240hz 4k monitor, the choice is wider than ever. This guide narrows it to 8 monitors worth a closer look, from solid value picks to premium models.
We compared 8 monitors from ASUS, LG, Acer and Amzfast using the details on their Amazon listings. For more ideas, see our monitors for drawing and best monitor for students guides.
Where a detail such as HDMI 2.1 or USB-C is not clear on the listing, we say to check it before you buy. We do not list prices because they change often.
Top 3 Best 240hz 4k Monitor at a Glance
Best 240hz 4k Monitor in 2027
Here are all 8 monitors side by side, so you can compare size, resolution and refresh rate.
| # | Monitor | Size / Resolution | Refresh | Panel / Notes | Category |
|---|---|---|---|---|---|
| 1 | ASUS ROG PG32UCDMR | 32″ 4K QD-OLED | 240Hz | QD-OLED | Best Overall |
| 2 | ASUS ROG Swift OLED PG32UCDM | 32″ 4K QD-OLED | 240Hz | QD-OLED | Runner-Up |
| 3 | ASUS ROG Swift OLED PG32UCDP | 32″ 4K OLED | 240Hz | OLED | Also Great |
| 4 | LG UltraGear 32GX850A-B | 32″ 4K OLED | 330Hz | OLED | Solid Choice |
| 5 | Acer Predator X32 | 31.5″ 4K QD-OLED | 240Hz | QD-OLED | Strong Option |
| 6 | Amzfast 27″ 4K | 27″ 4K IPS | Up to 320Hz (lower res) | IPS | Worth a Look |
| 7 | ASUS ROG Swift OLED PG27UCDM | 27″ 4K QD-OLED | 240Hz | QD-OLED | Good Alternative |
| 8 | Samsung Odyssey OLED G8 27″ | 27″ 4K QD-OLED | 240Hz | QD-OLED | Another Option |
1. ASUS ROG PG32UCDMR – Best Overall
The ASUS ROG PG32UCDMR is a 32-inch 4K UHD gaming monitor built around a QD-OLED panel. It offers a 240Hz refresh rate.
OLED is the main reason to look at this one: each pixel lights itself, so blacks are truly black and motion looks clean at high refresh rates. OLED gives per-pixel contrast and very fast response, but static HUD elements can raise burn-in risk over time, so vary your content and use the screen-saver and pixel-refresh features.
The listing has limited feedback so far, so read the newest customer reviews and check the return policy before you commit. The title does not state the HDMI version, so check the listing before assuming 4K at high refresh rates on a console.
Best for: players who want deep blacks and very fast response.
May not fit if: you leave static windows on screen for hours or play mostly in a bright room.
2. ASUS ROG Swift OLED PG32UCDM – Runner-Up
On paper, the ASUS ROG Swift OLED PG32UCDM is a 32-inch 4K UHD monitor with a 240Hz refresh rate, using a QD-OLED panel.
OLED is the main reason to look at this one: each pixel lights itself, so blacks are truly black and motion looks clean at high refresh rates. OLED gives per-pixel contrast and very fast response, but static HUD elements can raise burn-in risk over time, so vary your content and use the screen-saver and pixel-refresh features.
It holds a 4.6-star average from 620 Amazon ratings, which gives a useful picture of build quality and reliability. The title does not state the HDMI version, so check the listing before assuming 4K at high refresh rates on a console.
Best for: players who want deep blacks and very fast response.
May not fit if: you leave static windows on screen for hours or play mostly in a bright room.
3. ASUS ROG Swift OLED PG32UCDP – Also Great
ASUS ROG Swift OLED PG32UCDP pairs a 32-inch 4K UHD screen with a 240Hz refresh rate and an OLED panel.
OLED is the main reason to look at this one: each pixel lights itself, so blacks are truly black and motion looks clean at high refresh rates. We do not quote prices because they change daily, so use the Check Price button to see today’s Amazon price and whether it is currently discounted. OLED gives per-pixel contrast and very fast response, but static HUD elements can raise burn-in risk over time, so vary your content and use the screen-saver and pixel-refresh features.
Amazon owners rate it 4.4 out of 5 across 294 ratings, so there is plenty of real-world feedback to read before you buy. The title does not state the HDMI version, so check the listing before assuming 4K at high refresh rates on a console.
Best for: players who want deep blacks and very fast response.
May not fit if: you leave static windows on screen for hours or play mostly in a bright room.
4. LG UltraGear 32GX850A-B – Solid Choice
LG UltraGear 32GX850A-B pairs a 32-inch 4K UHD screen with a 330Hz refresh rate and an OLED panel. Adaptive sync comes from FreeSync Premium Pro. The listing quotes a 0.03ms response time.
OLED is the main reason to look at this one: each pixel lights itself, so blacks are truly black and motion looks clean at high refresh rates. OLED gives per-pixel contrast and very fast response, but static HUD elements can raise burn-in risk over time, so vary your content and use the screen-saver and pixel-refresh features.
Amazon owners rate it 4.5 out of 5 across 150 ratings, so there is plenty of real-world feedback to read before you buy. The title does not state the HDMI version, so check the listing before assuming 4K at high refresh rates on a console.
Best for: players who want deep blacks and very fast response.
May not fit if: you leave static windows on screen for hours or play mostly in a bright room.
5. Acer Predator X32 – Strong Option
Acer Predator X32 pairs a 31.5-inch 4K UHD screen with a 240Hz refresh rate and a QD-OLED panel. Adaptive sync comes from G-Sync Compatible. The listing quotes a 0.03ms response time. Other features mentioned in the listing include HDR400 HDR support, a 1700R curve, USB-C connectivity and HDMI 2.1 inputs.
OLED is the main reason to look at this one: each pixel lights itself, so blacks are truly black and motion looks clean at high refresh rates. OLED gives per-pixel contrast and very fast response, but static HUD elements can raise burn-in risk over time, so vary your content and use the screen-saver and pixel-refresh features.
It holds a 4.2-star average from 43 Amazon ratings, which gives a useful picture of build quality and reliability. The 1700R curve is noticeable, which feels immersive for gaming and video but is less ideal for precise design work.
Best for: players who want deep blacks and very fast response.
May not fit if: you leave static windows on screen for hours or play mostly in a bright room.
6. Amzfast 27″ 4K – Worth a Look
The Amzfast 27″ 4K is a 27-inch 4K UHD gaming monitor built around an IPS panel. It offers a refresh rate of up to 320Hz at a lower resolution.
It works for office tasks too: 4K gives sharp text for documents and spreadsheets. At 4K, you will want a recent graphics card to hold high frame rates in demanding games, but desktop text and video look very sharp. IPS panels keep colours and brightness consistent from wide angles, which suits shared screens and desk setups.
It holds a 4.5-star average from 1,615 Amazon ratings, which gives a useful picture of build quality and reliability.
Best for: gamers who want the sharpest picture.
May not fit if: you need HDMI 2.1 confirmed in the title for 4K at 120Hz on a console.
7. ASUS ROG Swift OLED PG27UCDM – Good Alternative
On paper, the ASUS ROG Swift OLED PG27UCDM is a 27-inch 4K UHD monitor with a 240Hz refresh rate, using a QD-OLED panel.
OLED is the main reason to look at this one: each pixel lights itself, so blacks are truly black and motion looks clean at high refresh rates. OLED gives per-pixel contrast and very fast response, but static HUD elements can raise burn-in risk over time, so vary your content and use the screen-saver and pixel-refresh features.
Amazon owners rate it 4.5 out of 5 across 233 ratings, so there is plenty of real-world feedback to read before you buy. The title does not state the HDMI version, so check the listing before assuming 4K at high refresh rates on a console.
Best for: players who want deep blacks and very fast response.
May not fit if: you leave static windows on screen for hours or play mostly in a bright room.
8. Samsung Odyssey OLED G8 27″ – Another Option
On paper, the Samsung Odyssey OLED G8 27″ is a 27-inch 4K UHD monitor with a 240Hz refresh rate, using a QD-OLED panel. Adaptive sync comes from FreeSync. The listing quotes a 0.03ms response time. Other features mentioned in the listing include HDR HDR support.
OLED is the main reason to look at this one: each pixel lights itself, so blacks are truly black and motion looks clean at high refresh rates. We do not quote prices because they change daily, so use the Check Price button to see today’s Amazon price and whether it is currently discounted. OLED gives per-pixel contrast and very fast response, but static HUD elements can raise burn-in risk over time, so vary your content and use the screen-saver and pixel-refresh features.
Amazon owners rate it 4 out of 5 across 296 ratings, so there is plenty of real-world feedback to read before you buy. The title does not state the HDMI version, so check the listing before assuming 4K at high refresh rates on a console.
Best for: players who want deep blacks and very fast response.
May not fit if: you leave static windows on screen for hours or play mostly in a bright room.
How to Choose the 240hz 4k Monitor
Budget and value
A trusted brand and a solid review history matter more than a long spec list. Check the current listing for the latest offer, because prices change often.
Eye comfort
Look for flicker-free and low blue light features if you spend long hours in front of the screen. They are standard on many modern monitors.
Warranty and support
Check the warranty terms on the listing, and read recent reviews for notes on dead pixels, backlight bleed and support.
Resolution and size
Resolution decides how sharp text and games look at a given size. 1440p is a strong balance for most desks, 4K is sharper but needs a stronger graphics card, and 1080p is the cheapest option.
Refresh rate
A higher refresh rate makes motion and scrolling smoother. 144Hz is a good starting point for gaming, and 240Hz or more helps in fast shooters if your graphics card can keep up.
240hz 4k Monitor FAQ
What is the best 240hz 4k monitor?
It depends on your budget and how you use it. Our top pick for most people is the ASUS ROG PG32UCDMR, and the table above helps you compare the others.
Is 1440p or 4K better?
1440p is easier to run at high frame rates and looks sharp at 27 inches. 4K is sharper but needs a stronger graphics card.
Is IPS better than VA?
IPS usually has better colour and viewing angles, while VA has deeper contrast. Both can be good value.
Is OLED worth the extra cost?
If you value contrast, colour and response, yes. Use the built-in care features to reduce the risk of image retention.
Final Verdict
For most people, the ASUS ROG PG32UCDMR is a strong place to start when looking for the 240hz 4k monitor. Compare size, resolution and refresh rate against how you use your screen, and check the listing for the latest details.
For more, see our 200hz 1080p monitor guide and our multitasking monitor picks.
Written and reviewed by Ethan Carter. Specs are checked against the manufacturer and Amazon listings. See our editorial policy and review methodology. Last reviewed: November 2026.
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