Dell Plus S2725QC 27" VS Xiaomi 4K Monitor A27Ui 27"

Both monitors share the same core panel fundamentals — 27″ IPS LCD with a 3840×2160 resolution at 163 ppi and identical 178°/178° viewing angles — so neither has an edge in sharpness or color-viewing flexibility. The real divergence comes in motion handling and usability. The Dell Plus S2725QC runs at 120Hz versus the Xiaomi A27Ui's 60Hz, which in practice means noticeably smoother scrolling, more fluid video playback, and a significantly better experience for anyone gaming or doing fast-paced work. Doubling the refresh rate is not a subtle upgrade; it is a tangible, visible difference in daily use.

The Dell further compounds this advantage with AMD FreeSync adaptive synchronization, which eliminates screen tearing and stuttering when frame rates fluctuate — a feature the Xiaomi entirely lacks. On response time the Xiaomi edges ahead at 6 ms versus Dell's 8 ms, but this 2 ms gap is essentially imperceptible to most users and is far outweighed by the refresh rate and adaptive sync deficit. Panel finish is another meaningful split: the Dell offers a matte, anti-glare surface that reduces reflections in bright environments, while the Xiaomi ships with a glossy panel and no anti-glare coating — a real-world disadvantage in any office or room with ambient lighting.

The Dell Plus S2725QC holds a clear and decisive edge in this group. Its higher refresh rate, adaptive synchronization, and matte panel make it the more capable and versatile display in virtually every practical scenario, from creative work to general use to gaming. The Xiaomi's marginally faster response time does not come close to compensating for those gaps.

Both monitors are standard-type displays that support tilt, portrait mode, and VESA mounting — a shared baseline that covers the essentials for most desk setups. The critical ergonomic split, however, is swivel: the Dell Plus S2725QC includes a swivel stand, while the Xiaomi A27Ui does not. Swivel allows horizontal rotation of the panel without physically repositioning the entire monitor, which matters considerably in multi-user environments or when fine-tuning screen angle for comfort over long sessions.

On physical footprint, the numbers tell an interesting story. The Dell is noticeably heavier at 6500 g versus the Xiaomi's 5500 g, yet its volume is dramatically smaller — roughly 13,062 cm³ compared to the Xiaomi's 57,950 cm³. This near-fourfold difference in volume is driven largely by the Xiaomi's much greater thickness of 185 mm against the Dell's compact 60 mm. In practical terms, the Xiaomi's stand assembly occupies significantly more desk depth, which can be a real constraint on shallower desks or cluttered workspaces.

The Dell Plus S2725QC holds the advantage in this group. Its swivel support adds meaningful ergonomic flexibility that the Xiaomi lacks, and its far more compact stand footprint makes it the friendlier option for space-conscious setups — despite weighing slightly more overall.

Color volume is identical between the two — both panels render 1.07 billion colors, placing them in the same wide-gamut tier that supports smooth gradients and nuanced color transitions well beyond standard 8-bit displays. Brightness is also essentially a wash: 360 nits on the Xiaomi A27Ui versus 350 nits on the Dell Plus S2725QC is a 10-nit gap that is invisible to the human eye under normal viewing conditions.

Where the two diverge meaningfully is contrast and calibration. The Dell's 1500:1 contrast ratio outpaces the Xiaomi's 1200:1, meaning darker blacks and a greater perceived depth between light and shadow — a real, visible difference in dark scenes or when working with dark-themed interfaces. That said, the Xiaomi counters with color calibration support, which the Dell lacks entirely. For photographers, designers, or anyone who needs verified color accuracy, the ability to calibrate the display to a known standard can matter more than a raw contrast advantage, since it ensures what you see on screen faithfully matches real-world output.

This group is genuinely split depending on use case. The Dell Plus S2725QC edges ahead for general and entertainment use thanks to its higher contrast ratio. But for color-critical work, the Xiaomi A27Ui holds the advantage — its calibration support gives professionals a tool for accuracy that the Dell simply cannot offer.

The connectivity foundation is largely shared: both monitors offer dual HDMI ports, a USB-C connection, and 3 USB ports — a solid hub-friendly setup that suits modern multi-device desks. Neither supports Thunderbolt, Wi-Fi, Ethernet, or legacy connectors, so those omissions are a non-issue for comparison purposes.

Two differences stand out. First, the Xiaomi A27Ui adds a DisplayPort output that the Dell entirely lacks. DisplayPort is the preferred interface for high-refresh-rate and high-resolution signals, and its presence gives the Xiaomi greater flexibility when connecting to a wider range of graphics cards or daisy-chaining displays. Second, the Xiaomi includes a 3.5 mm audio jack while the Dell does not — a small but practical omission on the Dell's part, as it means users who want to plug in headphones or powered speakers directly to the monitor are out of luck without a separate adapter or alternative audio path.

A narrow but clear edge goes to the Xiaomi A27Ui in this group. The addition of DisplayPort and a headphone jack costs the Dell in real-world flexibility, particularly for users who rely on direct audio output or need the signal compatibility that DisplayPort provides.

Across this feature set, the two monitors are nearly identical — neither offers Picture-in-Picture, smart TV functionality, a remote control, any surround sound format support, an ambient light sensor, or a front camera. For a productivity-oriented 27″ desktop monitor, the absence of most of these is entirely expected and not a meaningful drawback for either.

The one concrete differentiator is audio: the Dell Plus S2725QC includes built-in stereo speakers, while the Xiaomi A27Ui has none. Integrated speakers on a monitor are rarely audiophile-grade, but their practical value is real — they eliminate the need for a separate speaker or headphone solution in setups where audio quality is not a priority, such as video calls, casual media playback, or secondary workstations.

The Dell Plus S2725QC takes this group by default. Built-in stereo speakers are the only distinguishing feature present, and having them versus not having them is an unambiguous functional advantage for users who want a leaner, fewer-cables desk setup.