RATED
Great
8.2/10
31.5″ BenQ EX321UX – Specs & Features
The BenQ EX321UX pairs a 31.5-inch IPS-ADS panel at 3840 × 2160 with a refresh rate of up to 144 Hz.
Benq●Monitor
Display
31.5-inch, IPS-ADS, 3840 x 2160
31.5
Refresh Rate
48 Hz - 144 Hz
48 Hz
Brightness
700 cd/m² (peak 1000 cd/m²)
700 cd
Contrast Ratio
1000 : 1
1000
Overview
The BenQ EX321UX pairs a 31.5-inch IPS-ADS panel at 3840 × 2160 with a refresh rate of up to 144 Hz. It offers 140 ppi pixel density, 700 nits typical brightness (1000 nits peak), 1000:1 static contrast and 99% DCI-P3 coverage. Variable refresh covers 48–144 Hz, quotes 1 ms response and supports FreeSync Premium Pro. Inputs include 3× HDMI 2.1, 1× DisplayPort 2.1, USB-C 65 W and 3× USB-A. The stand offers 100 mm of height adjustment and swivel. There are no speakers, and it weighs 9.7 kg with the stand. It suits players who want smooth motion for fast games. The main trade-off: heavy at 9.7 kg, so it needs a sturdy desk or arm.
- 31.5-inch IPS-ADS, 3840 × 2160 at 140 ppi
- 48–144 Hz, 1 ms response, FreeSync Premium Pro
- 700 nits (1000 peak), 1000:1 contrast, 99% DCI-P3, DisplayHDR 1000
- 3× HDMI 2.1, 1× DisplayPort 2.1, USB-C 65 W, 3× USB-A
- 100 mm height, swivel, no speakers, 9.7 kg
Pros & Cons
Pros
- USB-C with 65 W power delivery charges a laptop over a single cable
- 144 Hz refresh keeps fast games smooth
- 140 ppi keeps text and images very sharp
- Built-in KVM switch shares one keyboard and mouse between two computers
- 99% DCI-P3 coverage suits colour-sensitive work
Cons
- Heavy at 9.7 kg, so it needs a sturdy desk or arm
- No built-in speakers, so headphones or external audio are needed
- 144 Hz sits below the 165–240 Hz of dedicated esports panels
- No pivot, so no portrait mode for long documents
Score & Ratings
8.2/10
Great
Model Information
15
| Specification | Value |
|---|---|
| Brand | BenQ |
| Series | MOBIUZ |
| Model | EX321UX |
| Model Alias | MOBIUZ EX321UX |
| Full Product Name | BenQ MOBIUZ EX321UX |
| Model Year | 2024 |
| 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 2024 |
| Available Colors | White |
| Warranty | 3 years (36 months) |
| Burn-In Warranty | Not applicable (non-OLED panel) |
Display & Panel
15
| Specification | Value |
|---|---|
| Screen Size | 31.5-inch |
| Exact Diagonal | 801 mm / 80.1 cm / 31.5354 in / 2.628 ft |
| Screen Format | 16:9 |
| Aspect Ratio | 16:9 |
| Active Display Width | 697.344 mm / 69.7344 cm / 27.4545 in / 2.2879 ft |
| Active Display Height | 392.256 mm / 39.2256 cm / 15.4431 in / 1.2869 ft |
| Display Area | 88.43 % (percent) |
| Panel Type | IPS-ADS (BOE) |
| Panel Technology |
|
| Panel Manufacturer | BOE |
| Backlight Type | Mini LED |
| Local Dimming | Yes |
| Local Dimming Zones | 1152 |
| 3D Support | No |
| Screen Coating |
|
31.5" Display Size (80 cm) 16:9
Resolution & Pixel Details
3
| Specification | Value |
|---|---|
| Native Resolution | 3840 × 2160 |
| Pixel Density | 140 PPI |
| Pixel Pitch | 0.182 mm (millimeters) |
Resolution at a Glance
Picture Quality & Color
13
| Specification | Value |
|---|---|
| Panel Bit Depth | 10 bits (8 bits + FRC) (FRC: Yes) |
| FRC | Yes |
| Display Colors | 1073741824 colors |
| Typical Brightness | 700 cd/m² |
| Peak Brightness | 1000 cd/m² |
| Static Contrast Ratio | 1000 : 1 |
| Horizontal Viewing Angle | 178 ° |
| Vertical Viewing Angle | 178 ° |
| HDR Support |
|
| HDR10 | Yes |
| Dynamic Tone Mapping | Yes |
| DCI-P3 Coverage | 99% |
| Adobe RGB Coverage | 99 % |
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
8
| Specification | Value |
|---|---|
| Native Refresh Rate | 144 Hz |
| Refresh Rate Range | 48 Hz - 144 Hz |
| Minimum Response Time | 1 ms / 0.0010 s |
| MPRT Response Time | 1 ms (MPRT) |
| Input Lag | 4.3 ms / 0.0043 s |
| AMD FreeSync | Premium Pro |
| Motion Blur Reduction | Supported |
| Black Equalizer | Yes |
Ports & Connectivity
14
| Specification | Value |
|---|---|
| HDMI Ports |
|
| HDMI Version | HDMI 2.1 |
| DisplayPort Input | 1× DisplayPort 2.1 |
| DisplayPort Version | DisplayPort 2.1 |
| 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 | 65W |
| USB-A Ports |
|
| USB-B Upstream | 1× USB-B |
| 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
5
| Specification | Value |
|---|---|
| Dimensions With Stand | 714.4 mm x 498.7 mm x 306 mm (W x H x D) |
| Dimensions Without Stand | 714.4 mm x 433 mm x 98.1 mm (W x H x D) |
| Weight With Stand | 9.7 kg |
| Weight Without Stand | 7.2 kg |
| Stand Depth | 306 mm / 30.6 cm / 12.0472 in / 1.0039 ft |
Power & Operating Conditions 9
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50/60Hz |
| Typical Power Consumption | 80W |
| Average Power Consumption | 80W |
| Maximum Power Consumption | 274W |
| Sleep Consumption | 0.5W |
| Off Consumption | 0.5 W |
Eye Care, Protection & Additional Features
6
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Reader Mode | Yes |
| Auto Brightness | Yes |
| Anti-Theft Slot | Yes (Kensington lock slot) |
| Additional Monitor Features |
|
Certifications, Standards & Licenses 3
| Specification | Value |
|---|---|
| EPEAT | EPEAT |
| TÜV Low Blue Light | TUV Rheinland Low Blue Light Certified (Software Solution) |
| VESA DisplayHDR | Display / HDR 1000 |
Included Accessories
4
| Specification | Value |
|---|---|
| HDMI Cable | HDMI cable (optional) |
| DisplayPort Cable | DisplayPort cable (optional) |
| USB-C Cable | USB Type-C cable (optional) |
| USB Upstream Cable | USB 3.2 cable (optional) |
Packaging Information 2
| Specification | Value |
|---|---|
| Package Dimensions | 955 mm x 528 mm x 208 mm (W x H x D) |
| Package Weight | 15.7 kg / 34.61 lbs |
⚡
Estimated Running Cost
Based on this product's rated power draw, not an independent lab measurement — actual usage varies with settings and content.
Daily₹3.12
Monthly₹93.60
Annually₹1,139
Draws less power than 57% of the 701 comparable displays we track.