iiyama Prolite XCB4594DQSN-B1 45" specifications and in-depth review

iiyama Prolite XCB4594DQSN-B1 45"

Manufacturer: iiyama

The iiyama Prolite XCB4594DQSN-B1 45″ is an ultrawide monitor built around a VA LCD panel with LED backlighting, offering a broad 44.5-inch screen suited to users who need expansive horizontal workspace. With a 5120 x 1440 resolution spread across that wide format, the display delivers a detailed image at a pixel density of 119 ppi, backed by a matte anti-glare coating that reduces reflections in typical office or studio environments. The panel supports a 165Hz refresh rate and a 0.8 ms response time, making it a capable option for both productivity-focused and fast-paced use cases.

On the color side, the display covers 100% of the sRGB color space at 8-bit depth, with a typical brightness of 450 nits and a contrast ratio of 3000:1, rendering 16.7 million colors. Connectivity options include two HDMI 2.1 ports, one DisplayPort 1.4 output, a USB Type-C port, four USB ports, a 3.5 mm headset jack, and built-in Ethernet — a notably practical inclusion for users who prefer wired network access directly through the monitor. Stereo speakers with 2 x 3W of audio output are also present, and the monitor supports VESA mounting and tilt adjustment, though it lacks swivel capability and portrait mode rotation.

Pros
  • The 5120 x 1440 resolution across a 44.5-inch ultrawide panel provides substantial horizontal screen space for multitasking and immersive workflows
  • A 165Hz refresh rate combined with a 0.8 ms response time makes the display responsive enough for fast-paced use beyond standard productivity tasks
  • Full 100% sRGB coverage at a 3000:1 contrast ratio gives the VA panel strong color accuracy and depth for content work
  • Built-in Ethernet connectivity allows wired network access to be passed through the monitor, reducing cable clutter at the desk
  • The connectivity lineup includes two HDMI 2.1 ports, one DisplayPort 1.4, USB Type-C, and four USB ports, covering a wide range of devices in a single hub
  • A matte panel with anti-glare coating makes the display more usable in rooms with ambient lighting
Cons
  • No adaptive synchronization technology is supported, which may result in screen tearing during variable frame rate content
  • The EU energy label of F indicates relatively poor energy efficiency for a monitor in this category
  • Swivel adjustment is absent and portrait mode is not supported, limiting physical orientation options to tilt only
  • Color calibration is not supported, so users requiring hardware-profiled accuracy have no built-in path to achieve it
  • The integrated stereo speakers offer only 2 x 3W of output and no support for Dolby Digital, Dolby Digital Plus, or DTS Surround
  • At 11200 g, the monitor is quite heavy, which may complicate repositioning or mounting on lighter desk setups
Who is this for?

This monitor is well suited to users who need a wide, high-resolution workspace for tasks like video editing, data-heavy workflows, or multi-application setups, thanks to its 5120 x 1440 ultrawide resolution and 100% sRGB coverage. The 165Hz refresh rate and 0.8 ms response time also make it a practical choice for users who want a single display that handles both productivity and fast-paced gaming without switching monitors. Those who benefit from a built-in connectivity hub will appreciate the combination of Ethernet passthrough, USB Type-C, and multiple HDMI 2.1 inputs, which allows several devices to be managed through a single screen.

Who is this NOT for?

Users who require hardware-level color calibration for professional color-critical work will find this monitor lacking, as no color calibration support is included. The absence of adaptive synchronization technology makes it a weaker fit for users who are sensitive to screen tearing during variable frame rate content. Those working in confined spaces or needing frequent display repositioning may also struggle with the monitor's 11200 g weight and limited stand adjustability, which is restricted to tilt only with no swivel or portrait rotation available.

Display:

Display type LED-backlit, LCD, VA
response time 0.8 ms
screen size 44.5"
resolution 5120 x 1440 px
pixel density 119 ppi
Adaptive synchronization None
has anti-glare coating
refresh rate 165Hz
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 a VA LCD panel with LED backlighting, measuring 44.5 inches across and delivering a 5120 x 1440 resolution at a pixel density of 119 ppi. It runs at a 165Hz refresh rate with a 0.8 ms response time, and both the horizontal and vertical viewing angles reach 178 degrees, providing consistent image quality across a wide range of positions. The panel is matte with an anti-glare coating, making it suitable for environments with ambient light, and it is not a touchscreen and does not have a glossy surface. No adaptive synchronization technology is supported.

General info:

Type Standard, Ultrawide
EU energy label F
supports total tilt
Has a swivel stand
Supports VESA mount
height 409 mm
width 1090 mm
thickness 275 mm
weight 11200 g
supports portrait mode
volume 122597.75 cm³

This is a standard ultrawide monitor with VESA mount support and tilt adjustment, giving users some flexibility in how it is positioned and installed. It does not include a swivel stand and cannot be rotated into portrait mode, so its orientation options are limited to tilt only. Physically, the unit measures 1090 mm wide, 409 mm tall, and 275 mm deep, with a total weight of 11200 g and a volume of 122597.75 cm³. It carries an EU energy label of F, reflecting its power classification under current European energy efficiency standards.

Colors:

brightness (typical) 450 nits
supports color calibration
display colors 16.7 million
bit depth 8-bit
contrast ratio 3000:1
sRGB coverage 100%

The display produces 16.7 million colors at an 8-bit depth, with a typical brightness of 450 nits and a contrast ratio of 3000:1 — a figure that reflects the inherent strength of VA panel technology in distinguishing between dark and light areas. It covers 100% of the sRGB color space, making it a consistent choice for work that relies on accurate color representation within that gamut. Color calibration is not supported, so out-of-box color accuracy is what users will need to rely on without additional hardware profiling options.

Connectivity:

HDMI ports 2
supports Thunderbolt
DisplayPort outputs 1
DisplayPort version DisplayPort 1.4
has a socket for a 3.5 mm audio jack
has a DVI connector
USB ports 4
Has USB Type-C
HDMI version HDMI 2.1
supports Ethernet
supports Wi-Fi
has AirPlay
mini DisplayPort outputs 0
has a VGA connector

The monitor offers a well-rounded set of video inputs, with two HDMI 2.1 ports and one DisplayPort 1.4 output covering the primary display connections, while a USB Type-C port adds a more versatile option for modern devices. Four additional USB ports are available for peripheral connectivity, and a 3.5 mm headset jack handles audio passthrough. A notable inclusion is built-in Ethernet, allowing wired network access to be routed through the monitor directly. There is no Wi-Fi, no AirPlay, no Thunderbolt support, and no DVI or VGA connector, keeping the connection set firmly focused on current-generation standards.

Power:

operating power consumption 37W
standby power consumption 0.5W

The monitor draws 37W during normal operation and drops to just 0.5W in standby mode, indicating a low idle power draw when the display is not actively in use.

Features:

has PiP
has stereo speakers
has built-in smart TV
audio output power 2 x 3W
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 stereo speakers with a combined output of 2 x 3W, providing basic integrated audio without the need for external speakers. Beyond that, the feature set is deliberately minimal — there is no PiP mode, no remote control, no ambient light sensor, and no front camera. Audio enhancement formats such as Dolby Digital, Dolby Digital Plus, and DTS Surround are all absent, and the monitor does not include any built-in smart TV functionality.

Final Verdict

The iiyama Prolite XCB4594DQSN-B1 45″ is a capable ultrawide monitor that makes a strong case for users who want a single display to cover both demanding productivity tasks and responsive gaming. Its 5120 x 1440 resolution paired with 100% sRGB coverage and a 165Hz refresh rate gives it genuine versatility across content work and fast-paced use, while the integrated Ethernet, USB Type-C, and dual HDMI 2.1 inputs make it a practical connectivity hub for multi-device setups. The absence of adaptive sync, hardware color calibration, and flexible stand adjustments are real limitations that will matter to certain users, but for those whose priorities align with what this display actually delivers, the iiyama Prolite XCB4594DQSN-B1 represents a well-specified and purposefully designed ultrawide option.

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