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DELL U3821DW reviews
Brand: DELL More DELL monitors reviews →
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Compare DELL U3821DW reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer codeDELL-U3821DW
The product, explained
About the DELL U3821DW
DELL DELL-U3821DW is listed in the computer monitors category. The recorded specifications include display diagonal: 95.2 cm (37.5"); display resolution: 3840 x 1600 pixels; panel type: IPS; maximum refresh rate: 60 Hz. This entry covers manufacturer code DELL-U3821DW. Specifications relate to this exact source record; other editions or packages may differ.
The 95.2 cm (37.5") display is specified at 3840 x 1600 pixels. Consider these together: a larger screen provides more physical space, while resolution determines the number of pixels available. Neither specification establishes brightness, colour accuracy or motion quality.
The listed maximum refresh rate is 60 Hz. To use it, the source device, cable, resolution and input must all support the intended mode. Refresh rate is separate from response time and input lag.
- Screen size
- 95.2 cm (37.5")
- Screen resolution
- 3840 x 1600 pixels
- Panel type
- IPS
- Maximum refresh rate
- 60 Hz
- Response time
- 8 ms
- Display brightness (typical)
- 300 cd/m²
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Expert reviews 0
Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.
No scored critic reviews have been imported for this exact product yet. It remains unrated.
More expert reviews
Techaeris
Dell UltraSharp 38 (U3821DW) review: An excellent widescreen monitor for multitasking
By Alex Hernandez. Read the publisher’s assessment of this model.
Read the full review ↗Review link · Not included in the COR Score
Pokde.Net
38″ Curved Dell UltraSharp U3821DW Review – Simplifying Your Life
By Aiman Maulana. Read the publisher’s assessment of this model.
Read the full review ↗Review link · Not included in the COR Score
Hitech Century
Dell UltraSharp U3821DW 38 USB-C Hub Monitor Review – Wondrously Wide Multitasking Delight
By Hitech Century. Read the publisher’s assessment of this model.
Read the full review ↗Review link · Not included in the COR Score
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8/ 104.00/ 5
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DELL U3821DW specifications
Manufacturer code: DELL-U3821DW · Icecat product 88727494 · Checked 25 Sep 2026. Specifications belong to this exact model.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Screen size | 95.2 cm (37.5") |
|---|---|
| Screen resolution | 3840 x 1600 pixels |
| Panel type | IPS |
| Maximum refresh rate | 60 Hz |
| Response time | 8 ms |
| Display brightness (typical) | 300 cd/m² |
| High Dynamic Range (HDR) supported | No |
| HDMI ports | 2 |
| DisplayPort connections | 1 |
More product specifications
Open a section for the details that matter to you.
Audio & listening4 details
| Number of speakers | 2 |
|---|---|
| Rated audio power (RMS) | 18 W |
| Built-in speakers | Yes |
| Audio output | Yes |
Display13 details
| Display technology | LCD |
|---|---|
| Touchscreen | No |
| Anti-glare screen | Yes |
| Screen shape | Curved |
| Screen curvature rating | 2300R |
| Contrast ratio (typical) | 1000:1 |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Display number of colours | 1.07 billion colours |
| Display diagonal (metric) | 95.29 cm |
| Colour gamut standard | DCI-P3 |
| Colour gamut | 95% |
| On Screen Display (OSD) | Yes |
Processor, memory & storage3 details
| Supported graphics resolutions | 3840 x 1600 |
|---|---|
| Storage temperature (T-T) | -20 - 60 °C |
| Storage relative humidity (H-H) | 5 - 90% |
Camera, image & video2 details
| Supported video modes | 480i, 480p, 576i, 576p, 720p, 1080i, 1080p |
|---|---|
| Built-in camera | No |
Printing, scanning & paper3 details
| Horizontal scan range | 30 - 100 kHz |
|---|---|
| Vertical scan range | 56 - 76 Hz |
| Total carbon footprint (kg of CO2e) | 802 |
Connections & wireless15 details
| Built-in USB hub | Yes |
|---|---|
| USB upstream port type | USB Type-B, USB Type-C |
| Number of upstream ports | 2 |
| Number of USB Type-B upstream ports quantity | 1 |
| Number of USB Type-C upstream ports quantity | 1 |
| USB Type-A downstream ports quantity | 4 |
| USB Type-C downstream ports quantity | 1 |
| USB Type-C DisplayPort Alternate Mode | Yes |
| DVI port | No |
| HDMI | Yes |
| HDMI version | 2.0 |
| DisplayPort version | 1.4 |
| Wi-Fi | No |
| Panel mounting interface | 100 x 100 mm |
| RJ-45 ports quantity | 1 |
Power & battery12 details
| Energy efficiency class (SDR) | F |
|---|---|
| Energy efficiency class (HDR) | Not available |
| Energy consumption (SDR) per 1000 hours | 37 kWh |
| Power consumption (typical) | 36.5 W |
| Power consumption (standby) | 0.3 W |
| Power consumption (max) | 230 W |
| Power consumption (off) | 0.3 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Power supply type | Internal |
| Energy efficiency scale | A to G |
| Carbon emissions, energy usage (kg of CO2e) | 281.502 |
Controls & features1 detail
| Operating temperature (T-T) | 0 - 40 °C |
|---|
Design & dimensions17 details
| Product colour | Grey |
|---|---|
| Front bezel colour | Black |
| Feet colour | Grey |
| VESA mounting | Yes |
| Height adjustment | Yes |
| Adjustable height (max) | 12 cm |
| Width (with stand) | 894.3 mm |
| Depth (with stand) | 251.2 mm |
| Height (with stand) | 563.8 mm |
| Weight (with stand) | 13.1 kg |
| Width (without stand) | 894.3 mm |
| Depth (without stand) | 102.4 mm |
| Height (without stand) | 392.3 mm |
| Weight (without stand) | 8.8 kg |
| Bezel width (side) | 1 cm |
| Bezel width (top) | 1.05 cm |
| Bezel width (bottom) | 1.53 cm |
Software & compatibility1 detail
| Compliance certificates | RoHS |
|---|
Further product details41 details
| HD type | UltraWide Quad HD+ |
|---|---|
| Native aspect ratio | 21:9 |
| Backlight type | W-LED |
| Aspect ratio | 21:9 |
| Response time (fast) | 5 ms |
| Pixel pitch | 0.22908 x 0.22908 mm |
| Pixel density | 110.87 ppi |
| Viewable size, horizontal | 89 cm |
| Viewable size, vertical | 38.8 cm |
| Viewable size diagonal | 95.3 cm |
| sRGB coverage (typical) | 100% |
| NVIDIA G-SYNC | No |
| AMD FreeSync | No |
| Flicker-free technology | Yes |
| Market positioning | Business |
| Detachable stand | Yes |
| Built-in KVM switch | Yes |
| AC (power) in | Yes |
| Cable lock slot | Yes |
| Pivot | No |
| Swivelling | Yes |
| Swivel angle range | -30 - 30° |
| Tilt adjustment | Yes |
| Tilt angle range | -50 - 21° |
| Plug and Play | Yes |
| LED indicators | Power |
| Operating relative humidity (H-H) | 10 - 80% |
| Operating altitude | 0 - 5000 m |
| Non-operating altitude | 5000 - 12192 m |
| Stand included | Yes |
| Quick start guide | Yes |
| Sustainability certificates | ENERGY STAR, TCO |
| Doesn't contain | PVC/BFR |
| Total carbon emissions, standard deviation (kg of CO2e) | 125 |
| Carbon emissions, manufacturing (kg of CO2e) | 413.03 |
| Carbon emissions, logistics (kg of CO2e) | 101.052 |
| Carbon emissions, end-of-life (kg of CO2e) | 6.416 |
| PAIA version | 1.2.13, 2021 |
| On/off switch | Yes |
| Picture-by-Picture (PbP) | Yes |
| Heavy metals free | Hg (mercury) |
Packaging & supplied accessories2 details
| Cables included | AC, DisplayPort, HDMI, USB Type-C |
|---|---|
| Harmonized System (HS) code | 85285210 |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
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Your questions, answered
DELL U3821DW FAQs
How many expert reviews are available for DELL U3821DW?
No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.
What is the COR Score for DELL U3821DW?
The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.
Which exact version does this page cover?
This page identifies DELL U3821DW using manufacturer code DELL-U3821DW. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.
What is the listed display diagonal for DELL U3821DW?
The source specification records display diagonal as 95.2 cm (37.5"). This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
What is the listed display resolution for DELL U3821DW?
The source specification records display resolution as 3840 x 1600 pixels. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
Where can I compare prices for DELL U3821DW?
Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.
Does a higher refresh rate make every app better?
It can make movement feel smoother, but benefits depend on the computer, connection and the activity.
Can I use a USB-C monitor with any laptop?
Not necessarily. Check the laptop port supports the required display mode and charging level.
Is a curved monitor always more immersive?
It depends on size, desk distance and use. Try it for text and multi-window work, not only video.
How should I use the specifications alongside reviews?
Use the recorded features to check compatibility and make a shortlist. Read the original reviews for measured performance, everyday use and the tested configuration.
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Monitor buying guides
Explore one topic in depth before making your shortlist.
Start with the complete buying guide →Monitor resolution and size: finding a comfortable matchResolution counts pixels; screen size determines how densely they are packed. The same resolution can look spacious on one diagonal and coarse on another, so compare the combination rather than either number alone.Monitor refresh rates: 60Hz, 120Hz, 144Hz and beyondChoose refresh rate from actual frame rate, motion needs, connection limits and image-quality priorities.IPS, VA and OLED monitors: choosing a panel typeChoose panel behaviour around text, contrast, motion, viewing position and static desktop use.USB-C monitors as laptop docksCheck charging power, video mode, hub bandwidth, network and downstream ports as one system.