KOORUI

KOORUI 27 inch QD-OLED Gaming Monitor (S2721XO)

Name: KOORUI 27 inch QD-OLED Gaming Monitor, 240Hz Monitor, 0.03ms, QHD 1440p AdaptiveSync, 99% DCI-P3, HDR True Black 400, Height/Pivot/Tilt/Swivel
Brand: KOORUI
SKU: B0FB9CSN8S

Status: KOORUI 27 inch QD-OLED Gaming Monitor (27 inch 1440p monitor): Unavailable on Amazon as of 2026-10-23 22:13 UTC. Lowest-priced in-stock match (same 27" 1440p monitor): INNOCN 27" QD-OLED 2K QHD 2560 x 1440P 280Hz…, $449.99 on Amazon as of 2026-10-24 12:20 UTC (price may vary). eBay sellers may still list this model new or used.

What to buy instead: the INNOCN 27" QD-OLED 2K QHD 2560 x 1440P 280Hz… at $449.99 on Amazon as of 2026-10-24 12:20 UTC (price may vary). It has the same 27 inch 1440p monitor as this listing and is the lowest of the 3 same-spec offers priced in the last 24 hours.

View Current Price — $449.99 🛒 Search eBay for this model

Bottom line: The KOORUI 27 inch QD-OLED Gaming Monitor: 320Hz refresh with 1ms GTG response, rare at this price tier; main trade-off: 1080p on a 24.5-inch panel looks coarse next to 1440p rivals.

Unavailable on Amazon as of 2026-10-23 22:13 UTC

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives with matching specs:

Same 27" 1440p monitor: LG ‎27GS93QE 27-inch Ultragear OLED Gaming… — $569.78 on Amazon as of 2026-10-24 12:20 UTC (price may vary).

View Current Price — $569.78

Same 27" 1440p monitor: LG ‎27GS95QE 27-inch Ultragear OLED Gaming… — $679.00 on Amazon as of 2026-10-24 04:13 UTC (price may vary).

View Current Price — $679.00

Same 27" 1440p monitor: INNOCN 27" QD-OLED 2K QHD 2560 x 1440P 280Hz… — $449.99 on Amazon as of 2026-10-24 12:20 UTC (price may vary).

View Current Price — $449.99

Original listing (currently unavailable) → Compare to similar gaming monitors

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-23

Mike Perry — Hardware researcher since 2014. For gaming and productivity monitors, synthesises manufacturer specs against measured monitor reviews (RTINGS, Monitors Unboxed) rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author → How we check display specs →

Pros & Cons

Pros

✓ 320Hz refresh with 1ms GTG response, rare at this price tier
✓ Fast IPS panel holds color off-axis, unlike TN esports displays
✓ 95% DCI-P3 coverage plus HDR 400 for non-competitive content
✓ Height, tilt, and vertical pivot adjustment built into the stand
✓ Two HDMI 2.0 plus DisplayPort 1.4 covers PC and console at once

Cons

✗ 1080p on a 24.5-inch panel looks coarse next to 1440p rivals
✗ HDR 400 is entry-tier; expect limited peak brightness impact
✗ DisplayPort 1.4 needed for 320Hz; HDMI 2.0 caps out lower
✗ Driving 320Hz needs a GPU most 1080p builds do not have

Manufacturer description

Ultimate Speed & Clarity – 27" QHD OLED: Dominate the battlefield with the KOORUI S2721XO. The 2560x1440 QHD resolution combined with OLED technology delivers near-instant response times and lifelike visuals, giving you the competitive edge in every fast-paced match. True-to-Life Color – 99% DCI-P3: Enjoy cinematic color accuracy with 99% DCI-P3 wide color gamut coverage. Whether you're gaming, editing, or streaming, every shade pops with exceptional depth and realism. Smooth & Responsive – Built for Gamers: Designed with gamers in mind, this OLED monitor features an ultra-fast response time…

SpecPicks Verdict

SpecPicks scored KOORUI 27 inch QD-OLED Gaming Monitor using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming monitors category. KOORUI's gaming monitors lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for gaming monitors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Can I actually hit 320Hz on this monitor?

You need DisplayPort 1.4 for the full 320Hz refresh rate; the two HDMI 2.0 ports carry less bandwidth and will cap lower. A DP cable and a GPU capable of pushing 300+ FPS at 1080p are both required.

Does the KOORUI G2511E work with a PS5 or Xbox Series X?

Yes, through either of the two HDMI 2.0 ports. Note that HDMI 2.0 does not carry the full 320Hz signal, so consoles run at their standard output modes rather than the panel's maximum refresh rate.

Is the panel IPS or TN?

It is a Fast IPS panel with 95% DCI-P3 color gamut coverage and HDR 400 support, so you get wide viewing angles and stable color off-axis alongside the 1ms GTG response time.

Can I mount this on a monitor arm?

Yes. The G2511E supports VESA 75x75mm mounting for desk arms or wall mounts. The included stand also offers tilt, height, and vertical adjustment if you would rather not use an arm.

What warranty does KOORUI provide?

KOORUI backs the display screen for 1 year and other accessories for 3 years. Check the current product listing for full terms and regional coverage before purchasing.

Key Features

Ultimate Speed & Clarity – 27" QHD OLED: Dominate the battlefield with the KOORUI S2721XO. The 2560x1440 QHD resolution combined with OLED technology delivers near-instant response times and lifelike visuals, giving you the competitive edge in every fast-paced match.
True-to-Life Color – 99% DCI-P3: Enjoy cinematic color accuracy with 99% DCI-P3 wide color gamut coverage. Whether you're gaming, editing, or streaming, every shade pops with exceptional depth and realism.
Smooth & Responsive – Built for Gamers: Designed with gamers in mind, this OLED monitor features an ultra-fast response time for minimal input lag and ghosting. Perfect for fast-paced shooters, strategy games, and everything in between.
HDR400 Certified – Enhanced Contrast & Brightness: VESA DisplayHDR400 certification ensures high dynamic range with enhanced contrast, brightness, and more detailed visuals—even in dark scenes.
Ergonomic Stand – Fully Adjustable Comfort: Game your way with a stand that tilts, swivels, pivots, and adjusts in height. Whether you're grinding out a long session or working from home, the S2721XO adapts to you.

Full Specifications

Size	27"/QHD/240Hz/OLED
Brand	KOORUI
Color	Black
Model	S2721XO
Warranty	3-year warranty service (display screen is backed for 1 year, and other accessories for 3 years
UnitCount	1
Manufacturer	KOORUI
Full listing title	KOORUI 27 inch QD-OLED Gaming Monitor, 240Hz Monitor, 0.03ms, QHD 1440p AdaptiveSync, 99% DCI-P3, HDR True Black 400, Height/Pivot/Tilt/Swivel Adjustability, HDMI & DisplayPort VESA, Black, S2721XO

Hardware benchmark data

Ready to buy?

Amazon shows no buyable offer for KOORUI 27 inch QD-OLED Gaming Monitor at the last check. The closest in-stock match with the same 27" 1440p monitor is LG ‎27GS93QE 27-inch Ultragear OLED Gaming…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $569.78