LG 52G930B vs Dell U5226KW — Which 52-inch Ultrawide Should You Buy?

Both are 52-inch-class 21:9 ultrawides, and on a desk they take up nearly the same space. The resemblance stops there. The LG 52G930B is a gaming monitor: a 51.6-inch VA panel at 5120 × 2160 and 240Hz. The Dell U5226KW is a workstation monitor: a 51.5-inch IPS Black panel at 6144 × 2560 and 120Hz, built around Thunderbolt 4 and a KVM.

If you game on it, buy the 52G930B. Twice the refresh rate, a 1ms response time, FreeSync Premium and DisplayHDR 600. Dell lists none of the last three.

If you work on it all day, especially across several computers, buy the U5226KW. It has more pixels (129 PPI against 108), a built-in KVM, Thunderbolt 4 with 140W charging, Ethernet and a three-year warranty to LG’s one.

How this page was put together: specs come from Dell’s US product page, LG’s US product page and LG’s 52G930B spec sheet, linked in the Source column. Owner impressions come from r/ultrawidemasterrace threads, linked where they’re cited. All read October 8, 2026. No independent review compares these two models directly yet. We haven’t used either monitor ourselves.

Specs side by side

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The LG sheet link is LG Electronics USA’s own spec sheet, mirrored on Manuals.plus because LG doesn’t host it on lg.com. Dell’s page contradicts itself on DisplayPort: its summary fields say none, but its port list names two DisplayPort 1.4 inputs and a DisplayPort cable ships in the box, so the table follows the port list.

What owners say about the trade

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One owner made this exact choice. An LG 52 owner who works from home tried the Dell 52 first and says the lack of curve made the extra space useless to them; for productivity they call the LG everything they wanted, though they miss OLED color and contrast for games. In the same thread, an owner who moved to the LG from Samsung’s 57-inch Neo G9 reports no ghosting or smearing at 240Hz with Response Time on Fast, and runs desktop brightness at about 50% because maxed out is too bright.

The curve comes up from the Dell side too. An owner six months in prefers the subtle curve and sits about 90 cm away. A commenter on an earlier U5226KW thread is switching back to Dell’s 40-inch: they wish the 52 had more curve and find the far edges hard to see.

The same six-month owner rates the Dell as “a true keeper for the productivity focused”: text clarity is fine to them, and its KVM switches between three PCs by keyboard shortcut in about five seconds. Their complaints are a slight pink tint, downward-facing rear ports, a dependence on Dell Display and Peripheral Manager for shortcuts, and a wake-from-sleep bug with older Intel laptops that the latest firmware seems to have fixed. Early on, the same owner had found text noticeably softer than on the 40-inch U4025QW they came from.

Not every Dell owner kept theirs. In that earlier thread, an owner with an RTX 4090 workstation says the PC won’t turn on with the monitor on DisplayPort, only HDMI, and another commenter returned theirs over the same problem. A Mac user returned theirs after about a week because it froze coming out of sleep and needed a power cycle, and one new owner finds it much dimmer at 100% than their Alienware monitors rated at 450 nits. That last one is a single report, still unresolved in the thread.

Which one fits you

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Gaming, from shooters to HDR: the 52G930B. It runs 240Hz at full resolution to the Dell’s 120Hz, at 1ms against 5ms, and it carries FreeSync Premium and DisplayHDR 600 where Dell lists neither. The Dell’s own six-month owner frames it as a work monitor with “a little 120Hz gaming on the side”.

Office work, spreadsheets and code all day: the U5226KW. It packs 6144 × 2560 into the same size, so 129 PPI against 108, and 400 more rows of pixels. It also lists 99% DCI-P3 with Delta E under 1.5, which matters if you grade photos or video.

Two or more computers on one desk: the U5226KW. Dell lists a built-in KVM, up to four connected PCs and 2.5GbE Ethernet that can stay locked to one of them. LG’s sheet lists Picture-by-Picture across two inputs, a single USB-C upstream and no KVM.

Mac users: lean U5226KW, and check the sleep reports first. It charges at 140W over Thunderbolt 4 against the LG’s 90W over USB-C, and Dell lists Mac support and 99% Display P3. But both Mac reports above hit friction: one returned it over sleep crashes, and a Mac Studio owner found the KVM awkward with an Apple wireless keyboard and the Dell software fiddly to install, while calling the screen space fantastic.

Shallow desk: the U5226KW. Its stand is 10.04 inches deep against the LG’s 13.7. The Dell is about two inches wider and its panel weighs 28.55 lb to the LG’s 26.9; Dell lists VESA 200 × 200 as well as 100 × 100. Our guide to monitor arms for ultrawide and heavy screens covers what to check.

Wraparound immersion at a normal viewing distance: the 52G930B. Its 1000R curve is much tighter than the Dell’s 4200R. The owner who chose the LG over the Dell did so for the curve, and one Dell owner is going back to a 40-inch over the edges.

Most worried about long-term reliability: the U5226KW on paper. Dell covers it for three years with Advanced Exchange and Premium Panel Exchange; LG covers the 52G930B for one. Weigh that against the Dell’s sleep and DisplayPort reports above.

Common questions

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Is the Dell U5226KW curved?

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Yes, but gently: Dell lists a 4200R curve, against 1000R on the LG 52G930B. On the six-month owner’s thread a reader calls it “almost-flat”; the owner says you soon get used to it and prefers it subtle.

Is the Dell U5226KW good for gaming?

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It can game, but it isn’t built for it. Dell lists 120Hz, 5ms GtG and VRR over HDMI 2.1, with no HDR rating and no FreeSync or G-Sync listing; the LG 52G930B runs 240Hz at 1ms with FreeSync Premium and DisplayHDR 600.

Does the LG 52G930B have a KVM switch like the Dell U5226KW?

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LG’s spec sheet lists no KVM, only Picture-by-Picture across two inputs and a single USB-C upstream. The Dell has a built-in KVM, four upstream connections for computers and a 2.5GbE Ethernet port.

The short version

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• 240Hz, HDR, a tight curve, games first: LG 52G930B
• 6K text, KVM, Thunderbolt 4, three-year warranty, work first: Dell U5226KW

If one screen has to do both, I’d let the hours decide: whichever job fills more of your day picks the monitor.

LG 52G930B-B 52-inch UltraGear Evo G9 5K2K Curved Gaming Monitor Amazon ↗ Dell UltraSharp 52 Thunderbolt Hub Monitor (U5226KW) Amazon ↗