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Dell 32 Plus 4K QD-OLED Monitor (S3225QC)

 & Tony Hoffman Senior Writer, Hardware

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology.

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Dell 32 Plus 4K QD-OLED Monitor (S3225QC) - Dell 32 Plus 4K QD-OLED Monitor (S3225QC)
4.5 Outstanding

The Bottom Line

The surprisingly affordable Dell S3225QC, featuring a 32-inch 4K QD-OLED screen and five punchy speakers, is a top-tier monitor for content creation, video watching, and casual gaming.

Pros & Cons

    • Reasonably priced for an OLED monitor
    • 4K screen with high pixel density
    • Superb contrast and color coverage
    • Powerful speakers
    • Limited port selection

Dell 32 Plus 4K QD-OLED Monitor (S3225QC) Specs

Adaptive Sync AMD FreeSync Premium Pro
Aspect Ratio 16:9
Dimensions (HWD) 24.4 by 28.3 by 8.8 inches
Height-Adjustable Stand?
Native Resolution 3840 by 2160
Panel Size (Corner-to-Corner) 31.6
Pixel Refresh Rate 120
Rated Contrast Ratio 1500000:1
Rated Screen Luminance 250
Screen Technology QD-OLED
Swiveling Stand?
Tilting Stand?
USB Ports (Excluding Upstream) 2
VESA DisplayHDR Level DisplayHDR True Black 400
Video Inputs HDMI
Video Inputs USB-C
Warranty (Parts/Labor) 3
Weight 22

The Dell 32 Plus 4K QD-OLED Monitor (S3225QC, $499.99) feels like several monitors rolled into one. It has the screen size, resolution, color coverage, and pixel density for creative work, a refresh rate and adaptive sync suitable for casual gaming, and a magnificent OLED screen and powerful sound system that make it an attractive choice for movie night. It's surprisingly cheap for what it offers, and earns our Editors' Choice award as a mainstream entertainment monitor.

Design and Specs: The Swivel Support You Need

The white-framed S3225QC measures 19.8 by 28.2 by 8.8 inches and weighs a hefty 22 pounds. Its heart is the 32-inch QD-OLED panel, with 4K UHD (3,840-by-2,160-pixel) resolution. A monitor with its screen size (31.6 inches, measured diagonally) and resolution has a pixel density of about 140 pixels per inch (ppm), which is more than enough for photo editing and working with intricate diagrams.

The S3225QC's 120Hz refresh rate and support for AMD FreeSync Premium Pro adaptive sync should reduce screen tearing and suffice at least for casual gaming.

(Credit: Joseph Maldonado)

The stand supports the standard ergonomic adjustments that we expect in a 32-inch monitor. You can adjust the monitor's height up to 4.3 inches, swivel the screen up to 30 degrees in either direction, and tilt the top of the screen up to 5 degrees toward you or 21 degrees away from you.

(Credit: Joseph Maldonado)

Although the S3225QC can't pivot all the way from landscape to portrait mode, it does offer slant adjustment—the ability for you to pivot either side of the monitor up to 4 degrees from horizontal. The S3225QC also supports VESA wall or arm mounting, with a square grid of holes spaced 100mm apart in the back.

(Credit: Joseph Maldonado)

Connectivity and Audio: Power for Peripherals

The S3225QC has a modest selection of ports. Facing downward in the back are an upstream USB-C port that supports DisplayPort Over USB Alternate Mode and up to 90 watts (90W) of power delivery, one HDMI 2.1 port, and a downstream USB-C port that can supply up to 15 watts to power peripherals. A second downstream USB-C port that can also provide 15W of power is in a retractable front-facing bay. The monitor lacks a dedicated DisplayPort connector.

(Credit: Joseph Maldonado)

The S3225QC's sound system, consisting of five 5W speakers set behind a fabric strip below the screen, employs 3D spatial audio.

(Credit: Joseph Maldonado)

Performance: Near-Infinite Contrast, Full Color Coverage

I tested the S3225QC's brightness, contrast ratio, and color-gamut coverage using our standard test gear: a Klein K-10A colorimeter, a Murideo SIX-G 8K test-pattern generator, and Portrait Displays' Calman for Business calibration software. Dell rates the S3225QC's SDR brightness at 250 nits (candelas per meter squared) and peak HDR brightness at 1,000 nits; I measured its SDR brightness at 236 nits, and HDR at 954 nits. While its SDR brightness may seem low in an absolute sense, note that OLED screens can maintain contrast at lower brightness levels, so the picture will always look vibrant in low ambient light, as was the case in our experiential testing.

Dell rates the S3225QC's contrast ratio at 1,500,000:1. Because each pixel in a QD-OLED monitor can be turned off, creating a true black, and because contrast ratio represents the ratio in brightness between the brightest white tone and darkest black, its contrast ratio is essentially infinite. We measured the S3225QC's contrast ratio at 234,225:1; although exact readings have little practical impact, such a high value reflects the display's ability to produce deep blacks alongside bright whites, resulting in improved image quality in both light and dark scenes. Its contrast is markedly superior to IPS Black or VA panels, which at best can muster contrast ratios in the 3,000:1 to 4,000:1 range.

(Dell S3225QC sRGB chromaticity chart)

The S3225QC's panel supports 10-bit color, providing a wide color gamut, especially in the sRGB space, the industry standard for web-based art and websites. In our testing, the monitor covered the full sRGB color space, 154% by area (see the chromaticity chart above). Such a reading indicates bright, well-saturated colors, with the potential for oversaturation, although that did not appear to be the case with this panel.

Dell rates the S3225QC's coverage of DCI-P3, the standard color space for digital cinema and video, at 99%, and the display effectively matched that, covering 98.7% of the space (see the chart below). The monitor also covered 98.5% of Adobe RGB, a color space used for preparing art for print publication.

(Dell S3225QC DCI-P3 chromaticity chart)

For my experiential testing, I viewed photos from our test suite as well as selected video clips. In both cases, colors were rich and well saturated, and the S3225QC brought out detail well in both bright and dark areas.

The S3225QC's sound system ranks among the best in the displays I have reviewed. In testing monitor audio, I play a selection of music videos. Its five 5W speakers churned out decent-quality audio, even at higher volumes. Bass response, though acceptable, seemed a little bit weak at times, but this is still well above your average monitor-audio experience.

Final Thoughts

Dell 32 Plus 4K QD-OLED Monitor (S3225QC) - Dell 32 Plus 4K QD-OLED Monitor (S3225QC)

Dell 32 Plus 4K QD-OLED Monitor (S3225QC)

4.5 Outstanding

The surprisingly affordable Dell S3225QC, featuring a 32-inch 4K QD-OLED screen and five punchy speakers, is a top-tier monitor for content creation, video watching, and casual gaming.

About Our Expert

Tony Hoffman

Tony Hoffman

Senior Writer, Hardware

Since 2004, I have worked on PCMag’s hardware team, covering at various times printers, scanners, projectors, storage, and monitors. I currently focus my efforts on 3D printers, pro and productivity displays, and drives and SSDs of all sorts.

Over the years, I have reviewed smart telescopes, iPad and iPhone science apps, plus the occasional camera, laptop, keyboard, and mouse. I've also written a host of articles about astronomy, space science, travel photography, and astrophotography for PCMag and its past and present sibling publications (among them, Mashable and ExtremeTech), as well as for the former PCMag Digital Edition.

The Technology I Use

I have a Lenovo ThinkPad T14 laptop that's my work daily driver, an HP Pavilion Aero 13 as my primary personal laptop, and an Asus ProArt P16 for detailed photo work. (I also have an older Dell XPS 13, which now stays at home full-time.) For storage testing, I rely on our three custom-built Windows testbeds in PC Labs, as well as a 2024 MacBook Pro.

My primary home monitor is a BenQ EX2780Q, a gaming monitor with a great sound system and excellent image quality. I use that panel for writing, watching videos, and working with photos. I also have an HP 27 Curved Display—one of the first general-purpose curved monitors—which I have paired with an Acer Aspire desktop computer. My multifunction printer is an Epson Expression Premium XP-7100 Small-in-One. I also own an Epson Perfection V39 flatbed scanner, which I use for photos and short documents, and a Canon Selphy CP1300 small-format photo printer for turning out snapshots.

My first cell phone, in 2006, was a Motorola Razr; since then, it’s been all iPhones—I currently have an iPhone 15 Pro. I use my iPhone a lot for casual photography, though I also use a Sony DSC-RX100 VII and a Canon G5 X Mark II for everyday shooting. For much of my travel photography and astrophotography, I use either a Sony A7r II or A7 III, paired with a variety of lenses ranging from a Sony 14mm f/1.8 prime to a Sony FE 70-300mm f/4.5-5.6 G OSS zoom lens. I also pair the A7r with a RedCat 51 for deep-sky star shooting. For astrophotography, I also use the Seestar S30 and S50 and the Unistellar Odyssey smart telescopes, which are essentially astronomical cameras controlled through one’s mobile device.

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