iiyama Prolite LH4375UHS-B1AG 43"

Name: iiyama Prolite LH4375UHS-B1AG 43"
Brand: iiyama
SKU: 62988

Manufacturer: iiyama

The iiyama Prolite LH4375UHS-B1AG is a 43-inch large-format monitor built around an IPS panel with LED backlighting, making it a straightforward choice for professional environments that require a wide, stable image across a sizeable screen. With a 3840 x 2160 pixel resolution across a 42.5-inch display area, the panel achieves a pixel density of 103 ppi, delivering a noticeably sharp image for text, detailed graphics, and general content. The matte, anti-glare coating helps manage reflections in mixed-lighting conditions, and the near-symmetrical 178-degree horizontal and vertical viewing angles mean the image holds up well when viewed from off-center positions.

From a connectivity standpoint, the LH4375UHS-B1AG offers three HDMI 2.0 ports alongside one DisplayPort 1.2 output, two USB ports, a 3.5 mm audio jack, and notably includes both Ethernet and Wi-Fi 5 (802.11ac) support. The display runs at a 60 Hz refresh rate with an 8 ms response time and a contrast ratio of 1200:1, while brightness is rated at 500 nits typical. Audio is handled by a stereo speaker setup rated at 2 x 10W. The unit weighs approximately 8.9 kg, supports VESA mounting, and accommodates tilt and portrait-mode positioning, with an operating temperature range of 0 to 40 degrees Celsius.

Pros

The IPS panel offers 178-degree viewing angles both horizontally and vertically, keeping image quality consistent when viewed from wide off-axis positions
4K resolution of 3840 x 2160 across a 42.5-inch screen results in a pixel density of 103 ppi, providing a noticeably sharp image for detailed work
Built-in Wi-Fi 5 and Ethernet support allow flexible network connectivity without requiring additional hardware
Three HDMI 2.0 ports provide generous input options for connecting multiple sources simultaneously
The matte anti-glare panel helps reduce reflections in environments with mixed or overhead lighting
Tilt adjustment and portrait mode support offer a reasonable degree of ergonomic and layout flexibility

Cons

The EU energy label is rated G, indicating relatively high energy consumption during regular use
No adaptive synchronization technology is supported, which limits smooth rendering for fast-moving content
A 60 Hz refresh rate and 8 ms response time are modest figures for a display of this size
The stand does not support swivel rotation, restricting horizontal angle adjustments
Color calibration is not supported, which may be a limitation for color-sensitive workflows
No USB Type-C, Thunderbolt, or remote control is included, reducing convenience for certain setups

Who is this for?

This monitor is well-suited to environments where a large, stable image is needed across extended periods, such as office workstations, presentation displays, or digital signage setups. The 4K IPS panel with wide 178-degree viewing angles makes it practical for spaces where multiple people may view the screen from different positions. Built-in Wi-Fi and Ethernet connectivity add convenience in installations where running video cables is not desirable, and the portrait mode support combined with VESA mounting gives installers flexibility in how the display is positioned and mounted.

Who is this NOT for?

Users who need smooth rendering for fast-moving content will find the 60 Hz refresh rate and 8 ms response time limiting, making this monitor a poor fit for gaming or video work requiring high frame rates. The absence of color calibration support means it falls short for color-critical professional workflows such as photo editing or pre-press work where accurate color reproduction is essential. Additionally, the G-rated energy label indicates relatively high power draw, so it is not well-suited to setups where energy efficiency is a priority.

Display:

Display type	LED-backlit, LCD, IPS
response time	8 ms
screen size	42.5"
resolution	3840 x 2160 px
pixel density	103 ppi
Adaptive synchronization	None
has anti-glare coating	✓
refresh rate	60Hz
maximum horizontal viewing angle	178º
maximum vertical viewing angle	178º
has a matte panel	✓
has a glossy panel	✕
has a touch screen	✕

The display uses an IPS panel with LED backlighting across a 42.5-inch screen, delivering a 4K resolution of 3840 x 2160 pixels and a pixel density of 103 ppi. It operates at a 60 Hz refresh rate with an 8 ms response time, and no adaptive synchronization technology is supported. Both horizontal and vertical viewing angles reach 178 degrees, ensuring consistent image quality across wide off-axis positions. The panel has a matte, anti-glare coating and is not glossy, which helps reduce reflections in brightly lit environments. Touch screen functionality is not included.

General info:

Type	Standard
EU energy label	G
supports total tilt	✓
Has a swivel stand	✕
Supports VESA mount	✓
height	557 mm
width	968 mm
thickness	54 mm
weight	8900 g
supports portrait mode	✓
maximum operating temperature	40 °C
lowest potential operating temperature	0 °C
volume	29115.504 cm³

This is a standard-type monitor with a VESA mount and support for both tilt adjustment and portrait mode, though it does not include a swivel stand. It measures 968 mm wide, 557 mm tall, and 54 mm thick, with a total weight of 8,900 g. The EU energy label is rated G, and operating temperatures are supported between 0 °C and 40 °C.

Colors:

brightness (typical)	500 nits
supports color calibration	✕
display colors	1070 million
bit depth	8-bit
contrast ratio	1200:1

The panel delivers a typical brightness of 500 nits and a contrast ratio of 1200:1, with an 8-bit color depth capable of displaying up to 1,070 million colors. Color calibration is not supported on this monitor.

Connectivity:

HDMI ports	3
supports Thunderbolt	✕
DisplayPort outputs	1
DisplayPort version	DisplayPort 1.2
has a socket for a 3.5 mm audio jack	✓
has a DVI connector	✕
USB ports	2
Has USB Type-C	✕
HDMI version	HDMI 2.0
supports Ethernet	✓
supports Wi-Fi	✓
Wi-Fi version	Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
has AirPlay	✕
mini DisplayPort outputs	0
has a VGA connector	✕

The monitor provides three HDMI 2.0 ports and one DisplayPort 1.2 output for video input, while mini DisplayPort, DVI, and VGA connectors are not included. Wired and wireless network connectivity are both supported, with Ethernet on board alongside Wi-Fi 5 (802.11ac) and Wi-Fi 4 (802.11n); AirPlay is not available. Two USB ports and a 3.5 mm audio jack round out the connection options, though USB Type-C and Thunderbolt are absent.

Power:

operating power consumption	104W
standby power consumption	0.5W

During normal operation, the monitor draws 104W, while standby power consumption drops to just 0.5W.

Features:

has PiP	✕
has stereo speakers	✓
has built-in smart TV	✕
audio output power	2 x 10W
has a remote control	✕
supports Dolby Digital	✕
supports Dolby Digital Plus	✕
has DTS Surround	✕
has an ambient light sensor	✕
has a front camera	✕

The monitor includes built-in stereo speakers rated at 2 x 10W, but does not support Dolby Digital, Dolby Digital Plus, or DTS Surround audio formats. Picture-in-Picture, a remote control, an ambient light sensor, a front camera, and built-in smart TV functionality are all absent from this model.

Final Verdict

The iiyama Prolite LH4375UHS-B1AG is a large-format 43-inch IPS monitor that makes a solid case for professional and commercial installation environments, where its 4K resolution, wide viewing angles, and built-in network connectivity combine into a genuinely practical package. It handles fixed-position display duties well — whether wall-mounted in portrait orientation, used as a shared workstation screen, or deployed in a networked signage setup — though users seeking high frame rates, color-accurate workflows, or energy-efficient operation will find its specifications fall short of those demands. Taken on its own terms, the LH4375UHS-B1AG is a capable, connectivity-rich large-format display best matched to environments that value screen real estate and flexible installation over peak display performance.

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