iiyama X4373UHSU-B2
- Monitors
- 43″
- 4K
- LCD / LED
Uses 33% less energy than the average for 43-inch monitors on Wattabill (124 models).
Running cost at a glance
- €25.37 per year
- €254 over 10 years
- 89.6 kWh per year
- 19 kg CO₂e per year from electricity use
Your country and usage
- Electricity at €0.2832 per kWh (household price with taxes, Eurostat 2026-S1).
- 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.
We assume prices stay the same over the years.
Electricity prices in all EU countries
Same size and resolution, cheaper to run
Models on the market with the same screen size and resolution as the iiyama X4373UHSU-B2 that use at least 5% less energy.
About this model
Text from the manufacturer, via Icecat.
Designed for professionals who need more screen space, the ProLite X4373UHSU offers a seamless solution for multitasking and multi-device workflows. The 43'' panel delivers rich colours, sharp 3840x2160 resolution and wide 178° viewing angles, with 450cd/m2 brightness ensuring excellent visibility in any lighting. For added flexibility, the monitor supports dual mode, allowing you to work in 3840×2160 for detailed content creation and data-heavy applications, or switch to 1920×1080 at 120Hz for smoother motion when displaying dynamic content or live feeds. The USB-C input with 95W Power Delivery, integrated KVM switch and four-port USB hub make it easy to connect, control and charge multiple devices through a single setup. Flicker-free technology and a blue light reducer help minimise eye strain during long sessions, while the included remote control offers instant access to key settings. Ideal for content creation, financial dashboards or control environments, this all-in-one monitor maximises clarity, comfort and productivity.
Specifications
| Brand | iiyama |
|---|---|
| Model | X4373UHSU-B2 |
| Energy class | E |
| Screen size | 43″ (108 cm) |
| Power in on mode (SDR) | 40.9 W |
| Energy class (HDR) | G |
| Power in on mode (HDR) | 79.1 W |
| Standby | 0.5 W |
| Off mode | 0.3 W |
| Resolution | 3840 × 2160 |
| Aspect ratio | 16:9 |
| Panel | LED LCD |
| Refresh rate | 60 Hz |
| Power supply | Internal |
| Guaranteed support | 7 years |
| Software updates | 8 years |
| Spare parts available | 7 years |
| On the market since | November 20, 2025 |
| EPREL registration number | 2518811 |
Source: EPREL, European Commission. Data updated October 13, 2026.
Product description and images: Icecat (Open Icecat), provided as is, without warranty.