RATED
Excellent
8.6/10
31.5″ BenQ EX321UZ – Specs & Features
Aimed at gamers, the BenQ EX321UZ is a 31.5-inch QD-OLED display with a 3840 × 2160 panel that refreshes at up to 240 Hz.
Benq●Monitor
Display
31.5-inch, QD-OLED, 3840 x 2160
31.5
Refresh Rate
48 Hz - 240 Hz
48 Hz
Brightness
250 cd/m² (peak 1000 cd/m²)
250 cd
Contrast Ratio
1500000 : 1
1500000
Overview
Aimed at gamers, the BenQ EX321UZ is a 31.5-inch QD-OLED display with a 3840 × 2160 panel that refreshes at up to 240 Hz. It offers 139 ppi pixel density, 250 nits typical brightness (1000 nits peak) and 99% DCI-P3 coverage. Variable refresh covers 48–240 Hz, quotes 0.03 ms response and supports FreeSync Premium Pro. Inputs include 2× HDMI 2.1, 1× DisplayPort 2.1, USB-C 90 W and 2× USB-A. The stand offers 100 mm of height adjustment and swivel. There are no speakers. It suits players who want OLED contrast with very fast response. The main trade-off: 250 nits typical SDR brightness is lower than many LCD rivals.
- 31.5-inch QD-OLED, 3840 × 2160 at 139 ppi
- 48–240 Hz, 0.03 ms response, FreeSync Premium Pro
- 250 nits (1000 peak), near-infinite OLED contrast, 99% DCI-P3, DisplayHDR 500 True Black
- 2× HDMI 2.1, 1× DisplayPort 2.1, USB-C 90 W, 2× USB-A
- 100 mm height, swivel, no speakers
Pros & Cons
Pros
- 240 Hz refresh delivers top-tier motion clarity for competitive play
- USB-C with 90 W power delivery charges a laptop over a single cable
- 0.03 ms response leaves very little pixel blur in motion
- QD-OLED panel gives per-pixel black levels and strong contrast
- Built-in KVM switch shares one keyboard and mouse between two computers
Cons
- 250 nits typical SDR brightness is lower than many LCD rivals
- OLED carries burn-in risk with static desktop elements
- No built-in speakers, so headphones or external audio are needed
- No pivot, so no portrait mode for long documents
Score & Ratings
8.6/10
Excellent
Model Information
16
| Specification | Value |
|---|---|
| Brand | BenQ |
| Series | MOBIUZ |
| Model | EX321UZ |
| Model Alias | MOBIUZ EX321UZ |
| Full Product Name | BenQ EX321UZ |
| Model Year | 2025 |
| Monitor Type | Gaming Monitor |
| Monitor Category | Gaming Monitor |
| Market Position | Mainstream Immersive Gaming |
| Primary Use | Immersive & Everyday Gaming |
| Region / Variant | Not specified |
| Launch Status | Model year 2025 |
| Available Colors | White |
| Warranty | 3 years (36 months) |
| Panel Warranty | 3 years |
| Burn-In Warranty | Not separately specified (standard 3-year warranty applies) |
Display & Panel
16
| Specification | Value |
|---|---|
| Screen Size | 31.5-inch |
| Exact Diagonal | 803 mm / 80.3 cm / 31.6142 in / 2.6345 ft |
| Screen Format | 16:9 |
| Aspect Ratio | 16:9 |
| Active Display Width | 699.48 mm / 69.948 cm / 27.5386 in / 2.2949 ft |
| Active Display Height | 394.73 mm / 39.473 cm / 15.5406 in / 1.295 ft |
| Display Area | 91.13 % (percent) |
| Panel Type | QD-OLED (Samsung) |
| Panel Technology | OLED |
| Panel Manufacturer | Samsung |
| OLED Technology | QD-OLED |
| Backlight Type | Self-emissive (no backlight — OLED) |
| Self-Emissive Display | Yes |
| Quantum Dot | Yes |
| 3D Support | No |
| Screen Coating | Anti-glare / Matte |
31.6" Display Size (80.3 cm) 16:9
Resolution & Pixel Details
3
| Specification | Value |
|---|---|
| Native Resolution | 3840 × 2160 |
| Pixel Density | 139 PPI |
| Pixel Pitch | 0.155 mm (millimeters) |
Resolution at a Glance
Picture Quality & Color
13
| Specification | Value |
|---|---|
| Panel Bit Depth | 10 bits |
| FRC | No |
| Display Colors | 1073741824 colors |
| Typical Brightness | 250 cd/m² |
| Peak Brightness | 1000 cd/m² |
| Static Contrast Ratio | 1500000 : 1 |
| Horizontal Viewing Angle | 178 ° |
| Vertical Viewing Angle | 178 ° |
| HDR Support |
|
| HDR10 | Yes |
| Dynamic Tone Mapping | Yes |
| DCI-P3 Coverage | 99% |
| Color Adjustment | Yes |
DESK DISTANCE FIT
65cm
CompactIdeal FitWideUltra-Wide
Fills more of your view — great for productivity, may need slight head turns toward the edges.
Refresh Rate, Response & Gaming
7
| Specification | Value |
|---|---|
| Native Refresh Rate | 240 Hz |
| Refresh Rate Range | 48 Hz - 240 Hz |
| Minimum Response Time | 0.03 ms / 0.0000 s |
| AMD FreeSync | Premium Pro |
| Motion Blur Reduction | Yes |
| Crosshair | Yes |
| FPS Counter | Yes |
Ports & Connectivity
15
| Specification | Value |
|---|---|
| HDMI Ports |
|
| HDMI Version | HDMI 2.1 |
| HDMI eARC | Yes |
| DisplayPort Input | 1× DisplayPort 2.1 |
| DisplayPort Version | DisplayPort 2.1 |
| DisplayPort Bandwidth | UHBR20 |
| USB-C Video Input | 1× USB-C |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| USB-C Data Speed | 5 Gbps (USB 3.2 Gen 1) |
| USB-C Power Delivery | 90W |
| USB-A Ports |
|
| KVM Switch | Yes |
| Audio Output | 3.5 mm |
| Headphone Output | 3.5 mm Audio Out |
Ports & Connections
Audio, Camera, Network & Smart Features
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Ergonomics & Stand
15
| Specification | Value |
|---|---|
| VESA Mount | 100 x 100 mm |
| VESA Size | 100 × 100 mm |
| Removable Stand | Yes |
| Height Adjustment | 100 mm |
| Height Range | 100 mm |
| Height Adjustment Range | 100 mm / 10 cm / 3.937 in / 0.3281 ft |
| Tilt Adjustment | Yes |
| Forward Tilt | 5 ° |
| Backward Tilt | 15 ° |
| Swivel Adjustment | Yes |
| Left Swivel | 15 ° |
| Right Swivel | 15 ° |
| Portrait Mode | No |
| Security Lock | Yes |
| Anti-Theft Lock | Kensington Lock |
Dimensions, Weight & Design
4
| Specification | Value |
|---|---|
| Dimensions With Stand | 718.88 mm x 498.14 mm x 223.42 mm (W x H x D) |
| Dimensions Without Stand | 718.88 mm x 421.44 mm x 161.3 mm (W x H x D) |
| Stand Width | 284.49 mm / 28.449 cm / 11.2004 in / 0.9334 ft |
| Stand Depth | 223.42 mm / 22.342 cm / 8.7961 in / 0.733 ft |
Power & Operating Conditions 6
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50/60Hz |
| Sleep Consumption | 0.3W |
| Off Consumption | 0.3 W |
Eye Care, Protection & Additional Features
7
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Burn-In Protection | Yes (BenQ Intelligent OLED Protection Suite - Pixel Refresh / Idle Dimmer / Pixel Shift / Logo Dimming |
| Thermal Management | Yes |
| Graphene Cooling Film | Yes |
| Anti-Theft Slot | Yes (Kensington lock slot) |
| Additional Monitor Features |
|
Certifications, Standards & Licenses 4
| Specification | Value |
|---|---|
| EPEAT | EPEAT |
| TÜV Flicker-Free | TÜV Rheinland Flicker-free Certified |
| TÜV Low Blue Light | TÜV Rheinland Low Blue Light Certified (Hardware Solution) |
| VESA DisplayHDR | Display / HDR 500 True Black |
Included Accessories
1
| Specification | Value |
|---|---|
| HDMI Cable | HDMI cable |
⚡
Estimated Running Cost
Based on this product's rated power draw, not an independent lab measurement — actual usage varies with settings and content.
Daily₹4.32
Monthly₹130
Annually₹1,577
Draws more power than 53% of the 701 comparable displays we track.