The Dell U2722D vs LG 27UN850 decision hinges on one detail many spec lists get wrong: the LG takes a laptop over a single USB-C cable, while the Dell has no USB-C video input at all. That is why this Dell U2722D vs LG 27UN850 breakdown starts with cables, not pixels. For the wider field, see our best monitors for home office roundup.
Both of these are 27-inch monitors aimed at people who work at a desk all day, and on paper they look like a simple trade: sharper 4K on the LG, a more common QHD resolution on the Dell. In practice the resolution is the smaller part of the decision.
The bigger split is how each one talks to your computer. The LG accepts USB-C and can power a laptop through the same cable. The Dell, in the U2722D version sold on Amazon, does not take video over USB-C. Its USB-C port is there for charging a phone, not for running a laptop.
One note on how this was put together: we have not had either monitor on our desks. This comparison comes from the manufacturers’ spec pages, independent lab measurements from TFTCentral and Monitornerds, and the pattern across Amazon owner reviews.
Quick Verdict
Laptop and one cable? LG. Desktop or dock? Dell.
If your work laptop needs to charge and show video through a single USB-C cable, the LG 27UN850 is the one that actually does that. If your computer connects over DisplayPort or HDMI anyway, the Dell U2722D gives you a QHD panel that is easy to read at normal scaling, a very adjustable stand, and an accurate sRGB mode.
Check the LG on Amazon → See the Dell on Amazon →Dell U2722D vs LG 27UN850: The Specs That Matter
| Spec | Dell U2722D | LG 27UN850 |
|---|---|---|
| Resolution | 2560 x 1440 (QHD) | 3840 x 2160 (4K UHD) |
| Panel | IPS, 60Hz, no variable refresh | IPS, 60Hz, FreeSync |
| USB-C video input | No (USB-C used for phone charging) | Yes, 60W power delivery |
| Other video inputs | DisplayPort 1.4, HDMI 2.0, DisplayPort out for daisy chaining | DisplayPort, two HDMI |
| Stand | Fully adjustable | Height, tilt and pivot (no swivel) |
| Color coverage | Rated 100% sRGB | Up to 99% sRGB |
| Amazon rating volume | Few ratings on this listing | 2,000+ ratings, around 4.5 stars |
| Listing | Check on Amazon → | Check on Amazon → |
The USB-C Question Decides Most of This
Here is the part that trips people up. Dell sells two close cousins: the U2722D and the U2722DE. TFTCentral’s review covers both on the same QHD panel, and it lists the USB-C connection with 90W power delivery, the built-in KVM switch, and the Ethernet port under the DE model only. The standard U2722D keeps the panel and the stand but drops that USB-C hub.
On the Amazon listing for the U2722D, USB-C appears only as a way to charge a phone at up to 15W. So if you were picturing a one-cable desk where a work laptop charges and displays through the monitor, the Dell in this comparison will not do it. You would plug in over DisplayPort or HDMI and keep the laptop’s own charger.
The LG is the opposite. Its USB-C port carries video and 60W of power. That is enough for most thin work laptops, and it is the one thing Monitornerds calls out as the main limit: if your laptop has a discrete GPU or a big power brick, 60W may not keep up under heavy load.
Screen Quality: QHD vs 4K at 27 Inches
At 27 inches, 4K gives you noticeably crisper text, and Amazon’s review summary for the LG lists picture quality and clear text among the things buyers like most, especially Mac users. The catch is that 4K at this size usually runs with display scaling turned on, since everything would be tiny at 100%. Monitornerds makes the same point: office work and reading can be harder without scaling.
The Dell’s QHD panel sits at a comfortable size at normal scaling, which is why QHD at 27 inches is a popular spreadsheet-and-documents choice. TFTCentral measured its sRGB mode as very accurate (average error around 1.2), though it also found the out-of-the-box greyscale accuracy poor. If color matters to you, plan on switching to sRGB mode.
Neither monitor is a gaming or video-heavy pick. Both are 60Hz, and the LG’s HDR400 badge does not deliver much: Monitornerds measured a peak of about 405 nits and called the HDR performance dismal. Treat HDR as a checkbox, not a feature.
Dell U2722D: The Desktop-and-Dock Pick
This is the better fit if your monitor gets its signal over DisplayPort or HDMI, from a desktop or from a laptop dock that already handles charging. The stand is the standout: TFTCentral describes it as fully adjustable with only slight wobble when you reposition it. Picture-by-picture and picture-in-picture let you show two computers at once, and the DisplayPort out lets you daisy chain a second monitor.
The tradeoff is simple. No USB-C video means a laptop needs its own charger and a video cable, which is two connections instead of one. The Amazon listing also has only a small number of ratings, so there is less owner feedback to lean on than for the LG.
- QHD resolution that reads well at normal scaling
- Accurate sRGB mode in lab testing
- Fully adjustable stand with little wobble
- Daisy chain output and two-PC picture modes
- No USB-C video input or laptop charging (that is the U2722DE)
- 60Hz with no variable refresh
- Default greyscale accuracy is poor until you use sRGB mode
- Limited owner feedback on the Amazon listing
LG 27UN850: The One-Cable Laptop Pick
For a hybrid worker with a single laptop, this is the monitor that matches the job. One USB-C cable brings the picture in and charges the laptop, so moving between a home desk and an office takes one plug. Across more than two thousand Amazon ratings, buyers keep praising the picture quality, the text, and the value.
Two things to check before you buy. First, LG now lists the 27UN850-W as discontinued on its own site, so what you find on Amazon is remaining stock, and when we checked it was sold by a reseller rather than LG. Look at who the seller is and what warranty comes with it. Second, Amazon’s review summary flags durability under “things to consider,” with some customers reporting failures after about five months, along with mixed notes on color and on Mac speaker compatibility.
- Sharp 4K text and picture quality
- One USB-C cable for video and 60W charging
- Height, tilt and pivot adjustment
- A large base of Amazon reviews to check
- 60W may not be enough for power-hungry laptops
- Weak HDR despite the HDR400 label
- Stand does not swivel
- Some reports of small backlight leaks and early failures
- Discontinued by LG, so seller and warranty matter
Pick the Dell If… Pick the LG If…
Pick the Dell U2722D if
- Your computer connects over DisplayPort or HDMI, or a dock handles charging
- You prefer QHD at normal scaling over 4K with scaling
- You want a very adjustable stand and an accurate sRGB mode
Pick the LG 27UN850 if
- You want one USB-C cable to charge and display from a laptop
- You value 4K text sharpness and a long track record of owner reviews
- Your laptop draws 60W or less
If you like the Dell but need USB-C, look at the U2722DE instead: it adds the USB-C hub, KVM and Ethernet the standard model lacks. Check the exact model number in the listing before you order.
FAQ
Final Verdict
If I had to give one rule, it would be the cable. A hybrid worker moving a laptop between locations should lean toward the LG 27UN850, as long as the seller and warranty look solid. Anyone plugging in a desktop, or a laptop on a dock, will be happy with the Dell U2722D and its flexible stand.
Quick Takeaways
- The Dell U2722D has no USB-C video input; the USB-C hub version is the U2722DE.
- The LG 27UN850 charges a laptop at up to 60W over one USB-C cable.
- Both are 60Hz office monitors, not gaming monitors.
- LG lists the 27UN850-W as discontinued, so check the Amazon seller and warranty.
So the Dell U2722D vs LG 27UN850 call comes down to how your computer connects. Laptop and one cable: LG. Desktop, or a laptop already on a dock: Dell. Not sure where to buy either one safely? Our guide on where to buy a monitor covers warranty and seller checks.