4k oled monitor - ASUS ROG Swift OLED PG27UCDM
ASUS ROG Swift OLED PG27UCDM, a top pick for 4k oled monitor

Picking the 4k oled monitor comes down to size, resolution, refresh rate and panel type. We picked 7 monitors that fit this search and compared them using the details on their Amazon listings.

We compared 7 monitors from ASUS, Samsung and LG using the details on their Amazon listings. For more ideas, see our best monitor for coding and new oled monitors 2027 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 4k OLED Monitor at a Glance

Best Overall
ASUS ROG Swift OLED PG27UCDM
ASUS ROG Swift OLED PG27UCDM
• 27-inch 4K UHD QD-OLED display
• 240Hz refresh rate
Check Price on Amazon
Runner-Up
Samsung Odyssey OLED G8 27"
Samsung Odyssey OLED G8 27″
• 27-inch 4K UHD QD-OLED display
• 240Hz refresh rate, 0.03ms response
• FreeSync
Check Price on Amazon
Also Great
LG UltraGear OLED 32GX870A-B
LG UltraGear OLED 32GX870A-B
• 32-inch 4K UHD OLED display
• 240Hz refresh rate, 0.03ms response
• FreeSync Premium Pro
Check Price on Amazon

Best 4k OLED Monitor in 2027

Here are all 7 monitors side by side, so you can compare size, resolution and refresh rate.

#MonitorSize / ResolutionRefreshPanel / NotesCategory
1ASUS ROG Swift OLED PG27UCDM27″ 4K QD-OLED240HzQD-OLEDBest Overall
2Samsung Odyssey OLED G8 27″27″ 4K QD-OLED240HzQD-OLEDRunner-Up
3LG UltraGear OLED 32GX870A-B32″ 4K OLED240HzOLEDAlso Great
4ASUS ROG PG32UCDMR32″ 4K QD-OLED240HzQD-OLEDSolid Choice
5ASUS ROG Swift OLED PG32UCDM32″ 4K QD-OLED240HzQD-OLEDStrong Option
6ASUS ROG Swift OLED PG32UCDP32″ 4K OLED240HzOLEDWorth a Look
7LG UltraGear 32GX850A-B32″ 4K OLED330HzOLEDGood Alternative
1
Best Seller

ASUS ROG PG27UCDM 27 Inch 4K 240Hz OLED Gaming Monitor QD-OLED

In Stock
9.7 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Th11 11, 2026
Last update on Th11 11, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
2
-41%
LG 32GX870A-B 32-inch Ultragear 4K UHD (3840 x 2160) OLED Gaming Monitor, Dual-Mode, 240Hz, 0.03ms, NVIDIA, AMD FreeSync Premium Pro, VESA DisplayHDR True Black 400, USB Type-C, DP2.1
Editor's Pick

LG 32GX870A-B 32-inch Ultragear 4K UHD (3840 x 2160) OLED Gaming Monitor, Dual-Mode, 240Hz, 0.03ms, NVIDIA, AMD FreeSync Premium Pro, VESA DisplayHDR True Black 400, USB Type-C, DP2.1

In Stock
9.6 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Th11 11, 2026
Last update on Th11 11, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
$1,399.99 Save $580.00
$819.99
3
Prime Limited Time

ASUS ROG PG32UCDMR 32 Inch 4K 240Hz OLED Gaming Monitor QD-OLED

In Stock
9.8 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Th11 11, 2026
Last update on Th11 11, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
4
Prime Top Rated

ASUS ROG PG32UCDM 32 Inch 4K 240Hz OLED Gaming Monitor QD-OLED

Out of Stock
9.8 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Th11 11, 2026
Last update on Th11 11, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
5
-12%
ASUS ROG PG32UCDP 32 Inch 4K 240Hz OLED Gaming Monitor

ASUS ROG PG32UCDP 32 Inch 4K 240Hz OLED Gaming Monitor

In Stock
9.6 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Th11 11, 2026
Last update on Th11 11, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
$1,199.00 Save $139.00
$1,060.00
6
-42%
LG 32GX850A-B 32" UltraGear 4K UHD (3840 x 2160) Glossy OLED Gaming Monitor, Dual-Mode 165Hz/330Hz, 0.03ms, G-SYNC, FreeSync Premium Pro, TrueBlack 400, HDMI, DP, Tilt/Height/Swivel/Pivot Stand, Black

LG 32GX850A-B 32" UltraGear 4K UHD (3840 x 2160) Glossy OLED Gaming Monitor, Dual-Mode 165Hz/330Hz, 0.03ms, G-SYNC, FreeSync Premium Pro, TrueBlack 400, HDMI, DP, Tilt/Height/Swivel/Pivot Stand, Black

In Stock
9.7 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Th11 10, 2026
Last update on Th11 10, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
$1,299.99 Save $548.10
$751.89

1. ASUS ROG Swift OLED PG27UCDM – Best Overall

ASUS ROG Swift OLED PG27UCDM
Best Overall
• 27-inch 4K UHD QD-OLED display
• 240Hz refresh rate
Check Price on Amazon
Pros
✓ Sharp 4K picture at 27 inches
✓ 240Hz keeps motion smooth
✓ Perfect blacks and very fast pixel response
✓ 4.5 average rating from 233 Amazon ratings
Cons
✗ Burn-in is possible with static images
✗ HDMI version not stated in the title, so check the listing for console use

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.

Check Price on Amazon

2. Samsung Odyssey OLED G8 27″ – Runner-Up

Samsung Odyssey OLED G8 27"
Runner-Up
• 27-inch 4K UHD QD-OLED display
• 240Hz refresh rate, 0.03ms response
• FreeSync
Check Price on Amazon
Pros
✓ Sharp 4K picture at 27 inches
✓ 240Hz keeps motion smooth
✓ Perfect blacks and very fast pixel response
✓ FreeSync support
Cons
✗ Burn-in is possible with static images
✗ HDMI version not stated in the title, so check the listing for console use

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.

Check Price on Amazon

3. LG UltraGear OLED 32GX870A-B – Also Great

LG UltraGear OLED 32GX870A-B
Also Great
• 32-inch 4K UHD OLED display
• 240Hz refresh rate, 0.03ms response
• FreeSync Premium Pro
• USB-C input
Check Price on Amazon
Pros
✓ Sharp 4K picture at 32 inches
✓ 240Hz keeps motion smooth
✓ Perfect blacks and very fast pixel response
✓ FreeSync Premium Pro support
Cons
✗ Burn-in is possible with static images
✗ HDMI version not stated in the title, so check the listing for console use
✗ Few Amazon ratings so far

On paper, the LG UltraGear OLED 32GX870A-B is a 32-inch 4K UHD monitor with a 240Hz refresh rate, using an OLED panel. Adaptive sync comes from FreeSync Premium Pro. The listing quotes a 0.03ms response time. Other features mentioned in the listing include HDR HDR support and USB-C connectivity.

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.

It has few ratings at the moment, so treat it as a promising option rather than a proven favourite and read the latest reviews first. 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.

Check Price on Amazon

4. ASUS ROG PG32UCDMR – Solid Choice

ASUS ROG PG32UCDMR
Solid Choice
• 32-inch 4K UHD QD-OLED display
• 240Hz refresh rate
Check Price on Amazon
Pros
✓ Sharp 4K picture at 32 inches
✓ 240Hz keeps motion smooth
✓ Perfect blacks and very fast pixel response
Cons
✗ Burn-in is possible with static images
✗ HDMI version not stated in the title, so check the listing for console use
✗ Few Amazon ratings so far

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.

Check Price on Amazon

5. ASUS ROG Swift OLED PG32UCDM – Strong Option

ASUS ROG Swift OLED PG32UCDM
Strong Option
• 32-inch 4K UHD QD-OLED display
• 240Hz refresh rate
Check Price on Amazon
Pros
✓ Sharp 4K picture at 32 inches
✓ 240Hz keeps motion smooth
✓ Perfect blacks and very fast pixel response
✓ 4.6 average rating from 620 Amazon ratings
Cons
✗ Burn-in is possible with static images
✗ HDMI version not stated in the title, so check the listing for console use

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.

Check Price on Amazon

6. ASUS ROG Swift OLED PG32UCDP – Worth a Look

ASUS ROG Swift OLED PG32UCDP
Worth a Look
• 32-inch 4K UHD OLED display
• 240Hz refresh rate
Check Price on Amazon
Pros
✓ Sharp 4K picture at 32 inches
✓ 240Hz keeps motion smooth
✓ Perfect blacks and very fast pixel response
✓ 4.4 average rating from 294 Amazon ratings
Cons
✗ Burn-in is possible with static images
✗ HDMI version not stated in the title, so check the listing for console use

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.

Check Price on Amazon

7. LG UltraGear 32GX850A-B – Good Alternative

LG UltraGear 32GX850A-B
Good Alternative
• 32-inch 4K UHD OLED display
• 330Hz refresh rate, 0.03ms response
• FreeSync Premium Pro
• DisplayPort input
Check Price on Amazon
Pros
✓ Sharp 4K picture at 32 inches
✓ 330Hz keeps motion smooth
✓ Perfect blacks and very fast pixel response
✓ FreeSync Premium Pro support
Cons
✗ Burn-in is possible with static images
✗ HDMI version not stated in the title, so check the listing for console use

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.

Check Price on Amazon

How to Choose the 4k OLED Monitor

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.

Panel type

IPS gives accurate colour and wide viewing angles, VA gives deeper contrast, and OLED gives near-instant response and perfect blacks. Choose by what you do most.

Ports and connectivity

Check for DisplayPort and HDMI, and for USB-C if you want a single-cable laptop setup. Look at the listing for HDMI 2.1 if you use a console.

Adaptive sync

FreeSync or G-Sync compatible support removes tearing when your frame rate changes. Most modern gaming monitors include one of them.

Stand and ergonomics

A stand that adjusts for height and tilt is easier on your neck, and a VESA mount lets you use your own arm if the stand is limited.

4k OLED Monitor FAQ

What is the best 4k oled monitor?

It depends on your budget and how you use it. Our top pick for most people is the ASUS ROG Swift OLED PG27UCDM, and the table above helps you compare the others.

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.

Do I need HDMI 2.1?

Only if you want 4K at a high refresh rate from a console or a recent graphics card. Check the listing for the exact port version.

How do I choose the right size?

27 inches is the most popular desk size, 32 inches is more immersive, and ultrawide models suit multitasking. Measure your desk first.

Final Verdict

For most people, the ASUS ROG Swift OLED PG27UCDM is a strong place to start when looking for the 4k oled 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 best portable monitors guide and our monitors for drawing picks.

About the author: Ethan Carter, founder and lead writer at Gaming Monitor Guru, monitor and gaming gear expert

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.