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Dell · QD-OLED · 31.5"

S3225QC

3840×2160 · 120 Hz · DisplayHDR 400 True Black, Dolby Vision

Overall
83
Work
75
Play
84
Amazon
$648
$648
Available on Amazon Updated Aug 30, 2026
Overall83.2
Work75.0
Play84.0
Refresh73.0
Response100.0
Color100.0
Quality / price25.7

Written analysis

S3225QC at a glance

The S3225QC is a 31.5" QD-OLED monitor at 3840×2160 and 120 Hz. The listed aspect ratio is 1.778:1, 16:9.

Best fit: a premium mixed-use desktop that will use the stronger panel, color, and motion scores rather than a basic office screen.

Panel and image

Overall quality is 83.2, with 75.0 work and 84.0 play. Pixel density is listed at 139 PPI. Typical brightness is 250 nits with a peak of 1000 nits. Contrast is listed as 1500000:1. The coating is Anti-glare/Matte. The listed pixel count sits in the high-resolution class used by the work and overall scores.

Color and HDR

Recorded gamut coverage is 99% DCI-P3. Color depth is listed as 10-bit native. HDR is listed as DisplayHDR 400 True Black, Dolby Vision. The work score is a solid everyday office result rather than a specialist color-critical display.

Motion and sync

Refresh is listed at 120 Hz. Response time is listed as 0.03 ms. The play score covers mainstream gaming and media; competitive high-refresh use still depends on the GPU keeping up. Pair this resolution with the GPU table before assuming native high settings.

Ergonomics and connectivity

Stand and mount options are listed as Height · Swivel · Tilt · VESA (100x100mm). Recorded inputs include 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps; upstream; 90W; DP Alt Mode), 2 x USB 3.2 (Type-C; Gen 1; 5 Gbps; downstream; 15W), 1 x HDMI 2.1. Speakers are listed as 2 x 5 W (watts).

Buying verdict

Overall quality is 83.2, a premium result for mixed work and play.

At the recorded Amazon price, quality / price is 25.7. This is a feature-first purchase; compare nearby screens if several extras would go unused.

Work / price is 23.1 and play / price is 18.1.

Display data

Full specifications

Panel, color, motion, connectivity, ergonomics, power, and value in one sheet.

General

Manufacturer
Dell
Monitor
S3225QC
Panel maker
Samsung
Launch price
Amazon price
$648
Amazon availability
Available
Price updated
Aug 30, 2026
Launch date
Jan 1, 2025

Panel

Size
31.5"
Panel type
QD-OLED
Resolution
3840×2160
Aspect ratio
1.778:1, 16:9
Pixel density
139 PPI
Brightness
250 nits · peak 1000 nits
Contrast
1500000:1
Display area
83.94 in²
Viewing angles
178 ° (degrees) / 178 ° (degrees)
Backlight
Coating
Anti-glare/Matte

Color & HDR

Color depth
10-bit native
Colors
1073741824
DCI-P3
99.00%
sRGB
Adobe RGB
NTSC
HDR
DisplayHDR 400 True Black, Dolby Vision
Local dimming
No

Motion

Refresh rate
120 Hz
Response time
0.03 ms
Input lag
Adaptive sync

Connectivity

Inputs
1 x USB 3.2 (Type-C; Gen 1; 5 Gbps; upstream; 90W; DP Alt Mode), 2 x USB 3.2 (Type-C; Gen 1; 5 Gbps; downstream; 15W), 1 x HDMI 2.1
Speakers
2 x 5 W (watts)

Ergonomics

Height adjustment
Yes
Pivot
No
Swivel
Yes
Tilt
Yes
VESA mount
Yes · 100x100mm

Power & value

Typical power
40.00 W
Max power
320.00 W
Overall
83.2
Work
75.0
Play
84.0
Quality / price
25.7
Work / price
23.1
Play / price
18.1

Additional information

Features
Adaptive-Sync technology, AMD FreeSync Premium, ComfortView Plus, Dark Stabilizer, Dell Display and Peripheral Manager, Flicker-free technology, Low Blue Light, OLED Panel Health, OLED Panel Maintenance, Pixel Refresh, Picture-by-Picture, Picture-in-Picture, Position Sensor, Quantum Dot Color, Self-Diagnostic, Sharpness, Smart HDR
Accessories
USB Type-C to Type-C (10 Gbps) cable, Microfiber cloth
Amazon warranty
1-Year Advanced Exchange Service and Premium Panel Exchange
Amazon dimensions
{'width': 28.3, 'height': 19.84, 'length': 8.81, 'weight': 22.05}

Extracted notes sit here. Amazon listing copy, when present, is at the bottom of the page.

Amazon

Price history

Nearby quality

Similar monitors

QD-OLED monitors close to S3225QC on overall quality. Open the monitor table to sort, filter, and compare side by side.

MSI MPG 271QRX 26.5" · QD-OLED · 2560×1440 · 360 Hz
78.3
90.9
27.0
Gigabyte MO27Q2 26.5" · QD-OLED · 2560×1440 · 240 Hz
78.3
90.9
27.3
MSI MPG 491CQP 48.9" · QD-OLED · 5120×1440 · 144 Hz
82.4
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Compare these in the monitor table

Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Experience hyper-realistic audio: Immerse yourself in sound with spatial audio technology from five 5W speakers. Enabled by AI-driven head-tracking, this feature follows your movements with pinpoint accuracy.

Stunning visuals, smooth performance: Enjoy stunning visuals with 4K resolution and QD-OLED technology. Dolby Vision and VESA DisplayHDR True Black 400 enhance every detail, while the 99% DCI-P3 color gamut delivers true-to-life colors. Experience smooth, tear-free motion with AMD FreeSync Premium Pro, up to a 120 Hz refresh rate, and an ultra-low 0.03ms response time.

Designed for ease of use and comfort: Enjoy a clutter-free desk setup with a single USB-C cable that supports up to 90W power delivery. Connect your accessories easily using the pop-out quick access ports, which include a USB-C with up to 15W of power.

Eye comfort: Minimize harmful blue light exposure without sacrificing color accuracy with Dell’s always-on, built-in ComfortView Plus.