TurboVS
Xiaomi 4K Monitor A27Ui 27" specifications and in-depth review

Xiaomi 4K Monitor A27Ui 27"

Manufacturer: Xiaomi

The Xiaomi 4K Monitor A27Ui is a 27-inch display designed for users who need sharp detail and accurate color reproduction in a standard desktop monitor form factor. Built around an IPS panel with LED backlighting, it delivers wide viewing angles of 178 degrees both horizontally and vertically, making screen content consistently readable from most positions. The glossy panel finish contributes to the overall vibrancy of the image, though it reflects ambient light rather than diffusing it.

At its core, this monitor renders content at 3840 x 2160 pixels, resulting in a pixel density of 163 ppi across its 27-inch screen. Color output reaches 1.07 billion colors at a 10-bit depth, with full sRGB coverage and a contrast ratio of 1200:1, while typical brightness is rated at 360 nits. Connectivity options include two HDMI ports, one DisplayPort output, USB Type-C, three additional USB ports, and a 3.5 mm audio jack. The stand supports tilt adjustment and portrait mode rotation, and the monitor is also compatible with VESA mounting solutions.

Pros
  • The 4K resolution across a 27-inch screen delivers a pixel density of 163 ppi, resulting in sharp and detailed image rendering
  • The IPS panel provides wide 178-degree viewing angles both horizontally and vertically, keeping image quality consistent from off-center positions
  • Full 100% sRGB coverage combined with 10-bit color depth and support for color calibration makes this suitable for color-sensitive work
  • Connectivity is well-rounded, offering two HDMI ports, one DisplayPort, USB Type-C, and three additional USB ports in a single monitor
  • The stand supports tilt adjustment and portrait mode rotation, and the monitor is also VESA mount compatible, offering flexible positioning options
Cons
  • The 60Hz refresh rate and lack of adaptive synchronization make this unsuitable for fast-paced or motion-sensitive use cases
  • The glossy panel without an anti-glare coating can cause noticeable reflections in brightly lit environments
  • There are no built-in speakers, meaning a separate audio output device is required for sound
  • The 6 ms response time is relatively slow compared to monitors designed for fast-moving content
  • The monitor does not support swivel adjustment, limiting horizontal repositioning flexibility without moving the entire unit
Who is this for?

This monitor is well-suited for users focused on color-accurate work such as photo editing, graphic design, or digital illustration, given its 100% sRGB coverage, 10-bit color depth, and support for color calibration. The 4K resolution at 27 inches also benefits anyone who regularly works with high-detail visual content, where sharpness and clarity matter at normal viewing distances. Additionally, its flexible mounting options — including tilt, portrait mode rotation, and VESA compatibility — make it a practical fit for multi-monitor desk setups or ergonomically conscious workstations that require adjustable screen positioning.

Who is this NOT for?

This monitor is not well-suited for gaming or fast-paced interactive use, as its 60Hz refresh rate, 6 ms response time, and complete absence of adaptive synchronization technology would result in a noticeably less smooth experience during motion-heavy content. Users in bright or high-ambient-light environments may also find the glossy panel problematic, since it lacks an anti-glare coating and can produce distracting reflections. Those who rely on built-in audio without an external speaker or headset will also find this monitor lacking, as it includes no stereo speakers or any onboard sound output beyond a 3.5 mm audio jack pass-through.

Display:

Display type LED-backlit, LCD, IPS
response time 6 ms
screen size 27"
resolution 3840 x 2160 px
pixel density 163 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 Xiaomi 4K Monitor A27Ui uses an IPS LCD panel with LED backlighting, spanning 27 inches and rendering content at 3840 x 2160 pixels, which translates to a pixel density of 163 ppi. The refresh rate is 60Hz with a 6 ms response time, and the panel does not support adaptive synchronization. Both the horizontal and vertical viewing angles reach 178 degrees, ensuring consistent image quality across a wide range of positions. The screen features a glossy finish without an anti-glare coating, and it does not function as a touch screen.

General info:

Type Standard
supports total tilt ✓
Has a swivel stand ✕
Supports VESA mount ✓
height 511 mm
width 613 mm
thickness 185 mm
weight 5500 g
supports portrait mode ✓
volume 57949.955 cm³

The Xiaomi 4K Monitor A27Ui is a standard-type monitor measuring 613 mm wide, 511 mm tall, and 185 mm thick, with a total weight of 5500 g. The stand supports tilt adjustment and portrait mode rotation, though it does not offer swivel functionality. For those who prefer alternative mounting solutions, the monitor is compatible with VESA mount brackets. Its total volume comes to approximately 57949.955 cm³.

Colors:

brightness (typical) 360 nits
supports color calibration ✓
display colors 1070 million
bit depth 10-bit
contrast ratio 1200:1
sRGB coverage 100%

This monitor offers a 10-bit color depth capable of reproducing 1070 million colors, paired with full 100% sRGB coverage to ensure consistent and accurate color representation. The contrast ratio stands at 1200:1, and typical brightness is rated at 360 nits. Color calibration is supported, giving users the ability to fine-tune the display's output to match specific color accuracy requirements.

Connectivity:

HDMI ports 2
supports Thunderbolt ✕
DisplayPort outputs 1
has a socket for a 3.5 mm audio jack ✓
has a DVI connector ✕
USB ports 3
Has USB Type-C ✓
supports Ethernet ✕
supports Wi-Fi ✕
has AirPlay ✕
mini DisplayPort outputs 0
has a VGA connector ✕

The monitor's connectivity options include two HDMI ports, one DisplayPort output, and a USB Type-C port, covering the most common video input standards while omitting DVI, VGA, mini DisplayPort, and Thunderbolt. Three additional USB ports are available for peripheral connections, and a 3.5 mm audio jack is present for headset or speaker use. Wired and wireless network connectivity are not supported, as the monitor lacks both Ethernet and Wi-Fi, and AirPlay is not available.

Power:

Features:

has PiP ✕
has stereo speakers ✕
has built-in smart TV ✕
has a remote control ✕
supports Dolby Digital ✕
supports Dolby Digital Plus ✕
has DTS Surround ✕
has an ambient light sensor ✕
has a front camera ✕

The Xiaomi 4K Monitor A27Ui is a straightforward display without extended multimedia or smart features. It does not include stereo speakers, and audio formats such as Dolby Digital, Dolby Digital Plus, and DTS Surround are not supported. There is no built-in smart TV functionality, remote control, Picture-in-Picture mode, ambient light sensor, or front camera.

Final Verdict

The Xiaomi 4K Monitor A27Ui is a focused productivity and color work display that delivers where it counts for its intended audience. Its 4K IPS panel with full sRGB coverage and 10-bit color depth makes it a genuinely capable option for users who prioritize image accuracy and fine detail over raw speed. The ergonomic flexibility, solid port selection, and support for color calibration further reinforce its position as a workstation-oriented screen. That said, its 60Hz refresh rate and lack of adaptive sync place it firmly outside the realm of gaming or motion-sensitive use, and the glossy panel will require careful placement in well-controlled lighting conditions. For users whose workflows center on visual accuracy and detailed content — rather than fast-paced interaction — the A27Ui represents a well-specified and purposeful choice.

Popular Comparisons

Xiaomi 4K Monitor A27Ui 27"
Xiaomi 4K Monitor A27Ui 27"
VS
BenQ GW2790Q 27"
BenQ GW2790Q 27"
Xiaomi 4K Monitor A27Ui 27"
Xiaomi 4K Monitor A27Ui 27"
VS
Dell Plus S2725QC 27"
Dell Plus S2725QC 27"
Xiaomi 4K Monitor A27Ui 27"
Xiaomi 4K Monitor A27Ui 27"
VS
Samsung ViewFinity S8 (S80D) 27"
Samsung ViewFinity S8 (S80D) 27"