Corsair Xeneon 27QHD240 OLED Gaming Monitor vs Dell S2721DGF 27-inch 1440p 165Hz Gaming Monitor (2026)

✍️ By the 247Verdict Editorial Team📅 Updated 05 October 2026

Which is better? We compared both on score, owner ratings, pros and cons.

Corsair Xeneon 27QHD240 OLED Gaming Monitor

9.3/10 Excellent

4.5★ (2,200 owners)

27" 1440p QD-OLED 240Hz, 0.03ms, USB-C 90W, 3-year burn-in warranty. The QD-OLED with warranty.

Full Review

Dell S2721DGF 27-inch 1440p 165Hz Gaming Monitor

9.1/10 Excellent

4.7★ (8,400 owners)

27" 1440p IPS 165Hz, 1ms, 98% DCI-P3, G-Sync + FreeSync, USB hub. The value 1440p all-rounder.

Full Review

At a Glance

	Corsair Xeneon 27QHD240 OLED Gaming Monitor	Dell S2721DGF 27-inch 1440p 165Hz Gaming Monitor
247Verdict Score	9.3/10	9.1/10
Owner Rating	4.5★ (2,200)	4.7★ (8,400)
Verdict	Excellent	Excellent
Panel	QD-OLED	IPS
Size	27" 1440p	27" 1440p
Refresh	240Hz	165Hz
Reviews	2,200 at 4.5★	8,400 at 4.7★

Quick Verdict

Both are strong choices, but the Corsair Xeneon 27QHD240 OLED Gaming Monitor edges ahead with a 9.3/10 vs 9.1/10. 27" 1440p QD-OLED 240Hz, 0.03ms, USB-C 90W, 3-year burn-in warranty. The QD-OLED with warranty. That said, the Dell S2721DGF 27-inch 1440p 165Hz Gaming Monitor is worth considering if 27" 1440p IPS 165Hz, 1ms, 98% DCI-P3, G-Sync + FreeSync, USB hub. The value 1440p all-rounder. Check the current price on Amazon →

Pros & Cons Side by Side

Corsair Xeneon 27QHD240 OLED Gaming Monitor

QD-OLED panel delivers infinite contrast and vivid quantum dot colour at 27-inch 1440p
3-year burn-in warranty — among the most reassuring OLED warranty coverage available
240Hz with 0.03ms response for competitive and immersive gaming
USB-C 90W charges a laptop and connects peripherals through one cable
Corsair ecosystem integration with iCUE software

£900+ QD-OLED pricing
OLED burn-in caution still applies despite the warranty
Corsair monitor range less established than its peripherals

Dell S2721DGF 27-inch 1440p 165Hz Gaming Monitor

98% DCI-P3 colour accuracy rivals monitors costing significantly more
165Hz IPS with 1ms response covers competitive and everyday gaming
Both G-Sync Compatible and FreeSync Premium Pro for any GPU
USB hub and fully ergonomic stand for a complete desk setup
Dell's reliability and warranty service backing 8,400 reviews at 4.7★

165Hz trails 240Hz alternatives for top-tier competitive play
IPS contrast lower than OLED for dark-scene atmosphere
HDR400 tier — not genuine HDR brightness

FAQ

Which is better, Corsair Xeneon 27QHD240 OLED or Dell S2721DGF 27-inch 1440p?

Is the Corsair Xeneon 27QHD240 OLED worth the extra cost?

Yes — Corsair Xeneon 27QHD240 OLED Gaming Monitor scores higher at 9.3/10 vs 9.1/10.

Who is the Corsair Xeneon 27QHD240 OLED best suited to?

27" 1440p QD-OLED 240Hz, 0.03ms, USB-C 90W, 3-year burn-in warranty. The QD-OLED with warranty.

Who is the Dell S2721DGF 27-inch 1440p best suited to?

27" 1440p IPS 165Hz, 1ms, 98% DCI-P3, G-Sync + FreeSync, USB hub. The value 1440p all-rounder.

What are the main downsides of each?

Corsair Xeneon 27QHD240 OLED Gaming Monitor: £900+ QD-OLED pricing; OLED burn-in caution still applies despite the warranty. Dell S2721DGF 27-inch 1440p 165Hz Gaming Monitor: 165Hz trails 240Hz alternatives for top-tier competitive play; IPS contrast lower than OLED for dark-scene atmosphere.

Do owner ratings agree with our verdict?

Largely, yes — Corsair Xeneon 27QHD240 OLED Gaming Monitor sits at 4.5★ from 2,200 verified Amazon owners, and Dell S2721DGF 27-inch 1440p 165Hz Gaming Monitor at 4.7★ from 8,400.

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