31.5″ Dell S3225QC – Specs & Features
The Dell S3225QC is a 31.5-inch 4K UHD Monitor designed for gaming and multimedia. It features a QD-OLED (Samsung) panel for perfect blacks and exceptional contrast. The Monitor is suitable for gaming and creative work and includes 48 Hz - 120 Hz refresh rate and DisplayPort/USB-C connectivity. However, it may not be ideal for inherent OLED limitation; best in dim-lit environments. It scores Great — 8.6/10 across our display performance benchmarks.
- QD-OLED (Samsung) panel produces perfect blacks with an infinite contrast ratio, eliminating backlight bleed entirely.
Scores and analysis are based on DisplayInput – Monitor & TV Specs Comparison's display benchmark methodology across 6 verified specifications. Data sourced from Dell's official specifications and independent lab measurements.
Display Performance
OLED/QD-OLED panels run lower typical brightness by design — peak brightness is the relevant HDR metric.
Who Should Buy the Dell S3225QC
Real-World Use Cases
Pros & Cons
- QD-OLED panel self-lit pixels deliver near-infinite contrast with pure blacks
- DisplayHDR True Black certification exceptional shadow detail and true-black HDR performance
- 4K UHD resolution (3840 x 2160) at 139 PPI razor-sharp detail for productivity and content
- 120Hz refresh rate smooth, comfortable scrolling and video playback
- 0.03 ms GtG virtually zero motion blur for the fastest gaming scenarios
- 1000 cd/m² peak brightness stunning HDR highlights visible in bright rooms
- 99% DCI-P3 cinema-grade color fidelity ideal for content creation and media
- Variable refresh (AMD FreeSync Premium) eliminates tearing and stutter for smooth gaming
- 10-bit color (1.07 billion colors) smooth, banding-free gradients for professional work
- Full ergonomic stand (height adjustment, swivel, tilt) adaptable for long multi-hour work sessions
- Low typical brightness (250 cd/m²) inherent OLED limitation; best in dim-lit environments
- OLED susceptibility to image retention prolonged static content risks permanent burn-in
- Stand lacks portrait pivot cannot rotate to vertical orientation for coding or documents
- No Thunderbolt 4 USB-C available but lacks 40 Gbps speed and high-wattage charging
- High peak power draw (320W) notably higher running cost than standard LCD monitors
- No built-in Ethernet network hub functionality absent; separate adapter required
- No DisplayPort HDMI-only video; may limit resolution/refresh on older GPU outputs
- Premium price point QD-OLED technology commands a significant cost over equivalent IPS/VA
- On-screen display menus can require several button presses to navigate basic settings
- Matte coating slightly reduces perceived colour vibrancy compared to glossy alternatives
Score & Ratings
| Specification | Value | 💡 What It Means |
|---|---|---|
| Brand | Dell | |
| Model | S3225QC | |
| Series | - | |
| Model Alias | Dell 32 Plus 4K QD-OLED | |
| Model Year | 2025 |
✓ Good 2025 — current generation. Latest panel technology and features.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Size Class | 31.5-inch |
✓ Good 31" — popular desktop size. Enough space for multitasking without head movement.
|
| Panel Type | QD-OLED (Samsung) |
✓ Good QD-OLED — quantum-dot layer over OLED. Best-in-class colour gamut with perfect blacks. No blooming.
|
| Curvature | -- | |
| Resolution | 3840 x 2160 |
✓ Good 4K UHD (3840×2160) — four times 1080p. Pin-sharp text, exceptional photo and video detail at any screen size.
|
| Aspect Ratio | 16:9 |
Standard 16:9 — universal for all streaming, gaming, and productivity content worldwide.
|
| Pixel Density | 139 PPI |
△ Average 139 PPI — adequate sharpness for monitor use. Comfortable for text and media at 50–80cm.
|
| Pixel Pitch | 0.181 mm (millimeters) |
✓ Good 0.181 mm (millimeters) pitch — fine. Comfortable sharpness at desk viewing distances.
|
| Display Area | 83.94 % (percent) |
| Specification | Value | 💡 What It Means |
|---|---|---|
| Color Depth | 10 bits |
✓ Good 10-bit — 1.07 billion colours. Eliminates colour banding in HDR skies, skin tones and gradients.
|
| Colors | 1073741824 colors |
✓ Good 1.07 billion colours (10-bit) — smooth HDR gradients; no visible banding in any content.
|
| sRGB | 100% |
✓ Good 100% sRGB — virtually complete coverage. Colour output matches what clients and printers receive exactly.
|
| DCI-P3 Coverage | 99% |
✓ Good 99% DCI-P3 — virtually complete coverage. Colour output matches what clients and printers receive exactly.
|
| HDR Support | DisplayHDR 400 True Black Dolby Vision HDR10 |
✓ Good Dolby Vision — scene-by-scene metadata. Netflix, Disney+ and Apple TV+ HDR is dramatically more realistic.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Brightness (Typical) | 250 cd/m² |
△ Average 250 cd/m² — comfortable indoors. May wash out next to a bright window or in direct sunlight.
|
| Peak Brightness | 1000 cd/m² |
✓ Good 1000 cd/m² — genuine HDR peak. Specular highlights visibly exceed SDR range on compatible content.
|
| Contrast | 1500000 : 1 |
✓ Good 1500000 : 1 — outstanding depth. Dark scenes look cinematic; excellent VA-class contrast.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Refresh Rate | 48 Hz - 120 Hz |
✓ Good 120Hz — enables PS5 and Xbox Series X 120fps Performance Mode. Also smooth for everyday desktop use.
|
| Response Time | 0.03 ms (GtG) |
✓ Good 0.03 ms (GtG) GtG — near-instant pixel transitions. Ghosting is invisible even in fast esports.
|
| Adaptive Sync | AMD FreeSync Premium |
✓ Good FreeSync Premium — tear-free gaming with LFC (prevents judder below minimum Hz). Works on AMD and NVIDIA GPUs.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Advanced Display Technologies | Panel Technology: - Backlight: Self-emissive (no backlight — OLED) Viewing Angles: 178° / 178° (Horizontal / Vertical) MPRT Response: - Dynamic Contrast: - Input Lag: 5.9 ms Screen Coating: Glossy |
178° wide viewing angles.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Camera | No |
⚠ Limited No built-in camera. An external webcam is needed for video calls.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Audio | 5 x 5 W (watts) |
| Specification | Value | 💡 What It Means |
|---|---|---|
| Ports | 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 (FRL (48 Gbps)) |
✓ Good USB-C (single-cable display + data, charging if PD supported). HDMI 2.1 — supports 4K@144Hz or 8K@60Hz bandwidth.
|
| Wireless | - |
| Specification | Value | 💡 What It Means |
|---|---|---|
| VESA Mount | 100 x 100 mm |
✓ Good VESA-compatible — fits any standard monitor arm, desk mount, or wall bracket. No proprietary hardware needed.
|
| Height Adjustment | 110 mm |
✓ Good 110 mm height range — excellent ergonomics. Adapts to any chair height or desk setup.
|
| Pivot | No |
⚠ Limited No pivot — cannot rotate to portrait orientation.
|
| Swivel | ±30° |
✓ Good Swivel — rotates left and right without moving the base. Easy screen sharing or multi-person viewing.
|
| Tilt | -5° to +21° |
✓ Good Tilt ±5° — adjustable screen angle reduces neck strain and matches your eye level.
|
| Removable Stand | Yes |
✓ Good Stand detaches cleanly from the panel — mount on any VESA arm or wall bracket without a leftover collar.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Gaming Features | AMD FreeSync Premium Picture-by-Picture Picture-in-Picture |
✓ Good AMD FreeSync (tear-free).
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Operating System | - |
No smart OS — this is a PC monitor. All input comes from connected computers or consoles.
|
| Smart Features | Adaptive-Sync technology ComfortView Plus Dark Stabilizer Flicker-free technology Low Blue Light OLED Panel Health OLED Panel Maintenance Pixel Refresh Position Sensor Quantum Dot Color Self-Diagnostic Sharpness Smart HDR |
✓ Good Adaptive-Sync technology
ComfortView Plus
Dark Stabilizer
Flicker-free technology
Low Blue Light
OLED Panel Health
OLED Panel Maintenance
Pixel Refresh
Position Sensor
Quantum Dot Color
Self-Diagnostic
Sharpness
Smart HDR — software features including OSD controls and display calibration tools.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Voltage | 100–240V |
✓ Good Universal or wide-range power supply. Compatible with outlets in the US, UK, EU, and most countries.
|
| Frequency | 50/60Hz |
50/60Hz AC supply — compatible with worldwide power grids including US, UK, EU, and AU.
|
| Average Consumption | 40W |
✓ Good 40W — efficient for a display of this size and capability.
|
| Maximum Consumption | 320W | |
| Standby | 0.3W |
✓ Good 0.3W standby — near-zero idle power. Excellent energy compliance.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Certificates | Energy Star FCC RoHS TÜV Rheinland Eye Comfort 3.0 with a 3-star rating TÜV Rheinland Flicker-free Certified TÜV Rheinland Low Blue Light Certified (Hardware Solution) |
✓ Good ENERGY STAR — US energy efficiency standard. RoHS — EU hazardous substances compliant. CE — meets EU safety & electromagnetic standards. FCC — US electromagnetic compatibility certified.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Without Stand Width | 718.78 mm |
Panel dimensions without stand attached. Use for wall-mount space planning.
|
| Without Stand Height | 457.65 mm |
Panel dimensions without stand attached. Use for wall-mount space planning.
|
| Without Stand Depth | 70.35 mm |
Panel dimensions without stand attached. Use for wall-mount space planning.
|
| Without Stand Weight | 6.95 kg |
△ Average 6.95 kg — standard weight for this panel size.
|
| With Stand Width | 718.78 mm |
Overall footprint with stand. Use when planning desk or shelf placement.
|
| With Stand Height | 504.02 mm |
Overall footprint with stand. Use when planning desk or shelf placement.
|
| With Stand Depth | 223.7 mm |
Overall footprint with stand. Use when planning desk or shelf placement.
|
| With Stand Weight | 10 kg |
△ Average 10 kg — standard weight for this panel size.
|
| Color | White |
Available colour finish for this unit.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Temperature | 0°C – 40°C |
Operating environment range. Keep within these limits for reliable long-term performance.
|
| Humidity | 10% – 80% |
Operating environment range. Keep within these limits for reliable long-term performance.
|