Main trade-off
Dell 27 4K USB-C Monitor
The screen refreshes at 60Hz rather than 120Hz.
Head-to-head
Choose the S2725QC for smoother scrolling and casual gaming. Choose the S2722QC when a better current offer makes 60Hz acceptable. Both provide 27-inch 4K resolution and up to 65-watt USB-C charging, so this is not a workspace or laptop-power upgrade.
Before you choose
At the maximum setting the S2725QC has an 8.33 ms interval instead of 16.67 ms.
What this is based on
1000 ÷ 120 = 8.33 ms and 1000 ÷ 60 = 16.67 ms. This does not measure input lag or pixel response.
Main trade-off
The screen refreshes at 60Hz rather than 120Hz.
Main trade-off
Its 65-watt USB-C output may be short of what a power-hungry mobile workstation expects.


Compare Dell S2722QC and S2725QC for scrolling, laptop charging and work. The newer model doubles refresh, but keeps the same 4K workspace.
Is 120Hz worth replacing a 60Hz USB-C monitor
Winner by situation
120Hz offers shorter update intervals when the computer outputs the supported mode.
A lower S2722QC offer can be reasonable if 60Hz already feels comfortable.
Neither reaches a required 90W output.
Both have the same native resolution.
What matters in practice
At the maximum setting the S2725QC has an 8.33 ms interval instead of 16.67 ms.
1000 ÷ 120 = 8.33 ms and 1000 ÷ 60 = 16.67 ms. This does not measure input lag or pixel response.
At equal scaling both screens begin with the same 3840 by 2160 desktop.
Resolution and diagonal are unchanged. Refresh rate alters how often the picture updates, not how much it contains.
A laptop that exceeds 65W remains outside the monitor's stated power ceiling with either model.
Both specify up to 65W USB-C power delivery. A newer model year does not raise that number.

Dell, S2722QC
A 4K picture and 65-watt USB-C connection cover everyday laptop work without a separate dock for the display. It remains worth comparing when the current offer is meaningfully below a newer 120Hz model.

Dell, S2725QC
Dell brings 4K resolution, 120Hz refresh, USB-C charging and speakers to a simpler 27-inch home-office screen.
Meaningful differences
| What changes | Dell 27 4K USB-C Monitor | Dell 27 Plus 4K USB-C Monitor | Why it matters |
|---|---|---|---|
| Size and resolution | 27-inch 3840 × 2160 | 27-inch 3840 × 2160 | Both have the same native pixel layout. |
| Maximum refresh | 60Hz | 120Hz | The newer screen can update twice as often. |
| Refresh interval | 16.67 ms | 8.33 ms | This describes display scheduling, not measured total latency. |
| USB-C charging | Up to 65W | Up to 65W | Neither raises the laptop power ceiling. |
| HDMI inputs | Two | Two | The number of HDMI sources is unchanged. |
| Built-in speaker rating | Two 3W speakers | Two 5W speakers | Rated power increases, but does not establish sound quality. |
What you give up
What matters in practice
The S2725QC can redraw the picture twice as often. That matters while scrolling, moving a pointer or playing a game at a compatible frame rate. It matters less when a document remains still for minutes at a time. The choice should follow how you use the screen rather than the age of the model.
The screen's 120Hz ceiling is only useful if the laptop, port, cable and any dock can deliver the desired mode. A connection that outputs 4K at 60Hz leaves much of the newer model's distinguishing benefit unused. Do not infer capability solely from a connector's shape.
Both models display the same 4K desktop and offer 65-watt USB-C power. If your current S2722QC already solves text clarity and charging, upgrading is a preference for smoother movement. Compare that benefit with the current price difference and the cost of any required connection changes.
What the facts say
Useful conclusions from the current computer monitors comparison, followed by the checked facts used to reach them.
Only 14 of 50 models checked match every need here: “A comfortable screen for everyday office work”, “Sharp 4K detail for work and entertainment”, and “One USB-C cable for video and peripherals”.
14 matching models from 50 checkedDell 27 Plus 4K USB-C Monitor lists 120 Hz for maximum refresh rate, 100% above Dell 27 4K USB-C Monitor at 60 Hz.
Match countThe count uses the current product-to-need assignments for “A comfortable screen for everyday office work”, “Sharp 4K detail for work and entertainment”, and “One USB-C cable for video and peripherals”. A need with no documented match does not count.
Calculation noteThis uses the highest published refresh mode. Resolution, connection and color settings can limit when that rate is available. 44 of 50 models have comparable published figures for context.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Dell 27 4K USB-C Monitor |
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| Dell 27 Plus 4K USB-C Monitor |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Most of your day is static documents and the offer is meaningfully lower.
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You notice motion while scrolling and moving windows.
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