Main trade-off
Dell UltraSharp 27 Thunderbolt Hub Monitor
QHD rather than 4K at the same screen size.
Head-to-head
Dell U2724DE vs S2725QC: UltraSharp replaces docking hardware, S2725QC gives sharper text at 120Hz
The short answer
Choose U2724DE when the monitor needs to handle wired networking, a compatible second display and up to 90 W of laptop charging. Choose S2725QC for a sharper 4K picture and built-in speakers when 65 W charging is enough. Both reach 120 Hz. The UltraSharp buys a more capable desk hub, while the S2725QC puts more pixels in the same screen size.
Before you choose
The reasoning and the trade-offs
The same screen size holds 2.25 times as many pixels
S2725QC has 8.29 million pixels, compared with 3.69 million on U2724DE. That gives finer detail within the same 27-inch size. It does not mean 2.25 times as much comfortable workspace, because operating-system scaling changes the size of text and controls.
What this is based on
3840 × 2160 = 8,294,400 pixels. 2560 × 1440 = 3,686,400. Their ratio is 2.25. Pixel counts are calculated from native resolution.
Main trade-off
Dell 27 Plus 4K USB-C Monitor
65 W laptop charging ceiling.
Dell UltraSharp 27 Thunderbolt Hub Monitor
- Choose it for
- Connect Ethernet and a compatible second display through the monitor
- Use up to 90 W USB-C charging with a supported laptop
- Main trade-off
- QHD rather than 4K at the same screen size.
Dell 27 Plus 4K USB-C Monitor
- Choose it for
- Get 4K detail on a 27-inch screen
- Keep built-in speakers and a simpler one-display desk
- Main trade-off
- 65 W laptop charging ceiling.
About this comparison
Dell U2724DE vs S2725QC for a laptop desk. Compare 4K detail, 120 Hz, USB-C charging and the cost of adding Ethernet or another display.
Choose U2724DE when the monitor needs to handle wired networking, a compatible second display and up to 90 W of laptop charging. Choose S2725QC for a sharper 4K picture and built-in speakers when 65 W charging is enough. Both reach 120 Hz. The UltraSharp buys a more capable desk hub, while the S2725QC puts more pixels in the same screen size.
Winner by situation
Start with what you need it to do
I want 4K detail on a 27-inch screen
U2724DE is QHD. S2725QC is native 4K.
- Dell UltraSharp 27 Thunderbolt Hub Monitor
- Not suitable
- Dell 27 Plus 4K USB-C Monitor
- Better fit
I want 120 Hz for smoother desktop movement
Both support up to 120 Hz with a suitable connection.
- Dell UltraSharp 27 Thunderbolt Hub Monitor
- Good
- Dell 27 Plus 4K USB-C Monitor
- Good
I need Ethernet built into the monitor
Only U2724DE has an RJ45 port.
- Dell UltraSharp 27 Thunderbolt Hub Monitor
- Better fit
- Dell 27 Plus 4K USB-C Monitor
- Not suitable
My laptop requires more than 65 W and no more than 90 W over USB-C
U2724DE has the nominal power budget. Verify the laptop and cable profile.
- Dell UltraSharp 27 Thunderbolt Hub Monitor
- Depends
- Dell 27 Plus 4K USB-C Monitor
- Not suitable
I want speakers without adding another device
Only S2725QC has built-in speakers.
- Dell UltraSharp 27 Thunderbolt Hub Monitor
- Not suitable
- Dell 27 Plus 4K USB-C Monitor
- Better fit
What matters in practice
The differences that matter
The same screen size holds 2.25 times as many pixels
S2725QC has 8.29 million pixels, compared with 3.69 million on U2724DE. That gives finer detail within the same 27-inch size. It does not mean 2.25 times as much comfortable workspace, because operating-system scaling changes the size of text and controls.
How we reached this conclusion
3840 × 2160 = 8,294,400 pixels. 2560 × 1440 = 3,686,400. Their ratio is 2.25. Pixel counts are calculated from native resolution.
A charging requirement above 65 W changes the one-cable plan
For a laptop whose documented requirement is 80 W over a compatible USB-C charging profile, the 65 W S2725QC ceiling is 15 W short. U2724DE has 10 W of nominal headroom. That is a power-budget check, not a promise of charging speed or sustained performance.
How we reached this conclusion
Illustrative required input: 80 W. S2725QC: 65 - 80 = -15 W. U2724DE: 90 - 80 = 10 W. Host acceptance, cable and charging profile must match.
Compare the complete desk cost
If the desk requires wired Ethernet and a second display connected through the first monitor, S2725QC needs an external dock or a different connection arrangement. U2724DE already includes the relevant network and display-output ports. Compare the complete setup price after checking host support.
How we reached this conclusion
U2724DE includes RJ45, DisplayPort output and downstream Thunderbolt. S2725QC lists no RJ45 or display-output connection. This is a port-availability comparison, not a compatibility guarantee.
Choice A
Dell, U2724DE
UltraSharp 27 Thunderbolt Hub Monitor
Dell U2724DE is a 27-inch native QHD monitor up to 120Hz. A verified Thunderbolt host can use video, data and up to 90W through its proper upstream. Separate USB-C upstream is data only. RJ45 needs upstream data, driver and Ethernet cable, with DP Alt High Resolution limiting USB data to 480 Mbps.
- Best matched use
- Connect Ethernet and a compatible second display through the monitor
Checked facts
- Screen size and resolution: 27 inches, 2560 × 1440
- Maximum refresh rate: 120 Hz
- Laptop power delivery: Up to 90 W
- Built-in wired network: 2.5GbE RJ45
Choice B
Dell, S2725QC
27 Plus 4K USB-C Monitor
Dell brings 4K resolution, 120Hz refresh, USB-C charging and speakers to a simpler 27-inch home-office screen.
- Best matched use
- Get 4K detail on a 27-inch screen
Checked facts
- Screen size and resolution: 27 inches, 3840 × 2160
- Maximum refresh rate: 120 Hz
- Laptop power delivery: Up to 65 W
- Built-in wired network: None
Meaningful differences
What changes the fit
| What changes | Dell UltraSharp 27 Thunderbolt Hub Monitor | Dell 27 Plus 4K USB-C Monitor | Why it matters |
|---|---|---|---|
| Screen size and resolution | 27 inches, 2560 × 1440 | 27 inches, 3840 × 2160 | The physical screen size is the same. S2725QC has more pixels. |
| Maximum refresh rate | 120 Hz | 120 Hz | Choose the resolution and connections rather than expecting a refresh-rate upgrade. |
| Laptop power delivery | Up to 90 W | Up to 65 W | Check the laptop power requirement and supported USB-C charging profile. |
| Built-in wired network | 2.5GbE RJ45 | None | S2725QC needs another path if Ethernet is required. |
| Connections for another display | DisplayPort out and Thunderbolt downstream | No display output | Actual multi-display support depends on the host, operating system and connection mode. |
| Built-in speakers | No | Yes | S2725QC can provide basic audio without adding desktop speakers. |
What you give up
Every choice has a cost
If you choose Dell UltraSharp 27 Thunderbolt Hub Monitor
- No built-in speakers.
If you choose Dell 27 Plus 4K USB-C Monitor
- No Ethernet or display-output port.
Recommendation switch
The decision flips if...
Native 4K is essential
Choose Dell 27 Plus 4K USB-C Monitor. S2725QC has the required resolution. U2724DE is QHD.
Built-in Ethernet is essential
Choose Dell UltraSharp 27 Thunderbolt Hub Monitor. U2724DE has the RJ45 connection.
My laptop requires more than 90 W from the monitor
Choose neither. Neither supplies that much power over its laptop connection.
What matters in practice
How to make the call
Price the whole desk
List what needs to remain connected when you unplug the laptop. An Ethernet cable, keyboard, storage device and second display can make a hub monitor useful every day. If a dock already handles those jobs, paying for overlapping connections may bring little benefit. Include any missing dock, adapter or speakers when comparing the two Amazon offers.
Choose readable text before counting windows
At a fixed screen size, more pixels make finer rendering possible. The comfortable text size still depends on eyesight, viewing distance and scaling settings. Try your preferred application layout at the intended scale if you can. Buying 4K and then increasing the interface size is a perfectly sensible choice for clearer text, even if it does not create room for more windows.
Verify the laptop connection before buying cables
A USB-C-shaped socket does not by itself establish video, charging and multiple-display support. Check the laptop specification and the intended operating system. For U2724DE, confirm the supported Thunderbolt or DisplayPort chain. For S2725QC, confirm the cable and host can deliver the resolution and refresh rate you want. A monitor cannot add display support that the computer lacks.
What this comparison cannot tell you
- Pixel and power-budget calculations use published specifications. We have not measured these units, text clarity, charging speed or speaker quality.
- Multi-display output, charging and maximum refresh rate depend on the host, operating system, cable and connection mode.
What the facts say
What the comparison shows
Useful conclusions from the current computer monitors comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Dell UltraSharp 27 Thunderbolt Hub Monitor |
|
| |
| Dell 27 Plus 4K USB-C Monitor |
|
|
Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Dell UltraSharp 27 Thunderbolt Hub Monitor
Connect Ethernet and a compatible second display through the monitor
See price & reviews on AmazonDell 27 Plus 4K USB-C Monitor
Get 4K detail on a 27-inch screen
See price & reviews on AmazonLinks open in a new tab.