Comparison winner
vs
vs

42 facts in comparison

KOORUI S2741LM vs Acer Nitro XV275K P5biipruzx

Two Mini-LED 4K monitors at similar money, both doing the thing that separates real HDR from a sticker: dividing the backlight into over a thousand independently dimmed zones.

The differences are at the margins — peak brightness, colour coverage, and whether the stand pivots. Read the mounting and stand rows carefully, because on displays this closely matched the ergonomics are more likely to decide it than the panel figures.

PictureGamingErgonomics& designConnectivityFeatures

Tap a category to see which one wins it.

100Points
89Points

Where the KOORUI S2741LM beats the Acer Nitro XV275K P5biipruzx

  • Higher peak brightness ?1,400 nits vs 1,000 nits
  • Slightly wider DCI-P3 colour coverage ?98 % vs 95 %
  • Has pivot adjustment ?
Scroll down for more details

Key real-world differences

The spec sheet pulls in both directions. These are the gaps big enough to shape the decision — with the actual figures, and what each one means in real-world use.

  1. Peak brightnessPicture
    1,400 nits vs 1,000 nits — 29% more for the KOORUI S2741LM

    Higher brightness makes HDR highlights pop.

  2. PivotErgonomics & design
    Yes vs No — only the KOORUI S2741LM has it

    Rotate to portrait orientation.

Which one should you buy?

There is no single answer — it depends on what you will actually use it for. Match your priority to the pick below.

  • Best for picture KOORUI S2741LM takes the category 100 to 85 — driven by peak brightness (1,400 nits vs 1,000 nits).
  • Best for ergonomics & design KOORUI S2741LM takes the category 100 to 80 — driven by pivot (Yes vs No).
  • Best for features Acer Nitro XV275K P5biipruzx takes the category 100 to 0.
  • The safe all-rounder KOORUI S2741LM wins more of the categories that carry real weight, topping the overall VS Score at 100.

Where each one falls short

KOORUI S2741LM

  • No major spec weaknesses in this matchup — the gaps that exist are small.
  • 11 specs are unreported (shown as Unknown) and excluded from its scores.

Acer Nitro XV275K P5biipruzx

  • Peak brightness: 1,400 nits vs 1,000 nits
  • Pivot: Yes vs No
  • 3 specs are unreported (shown as Unknown) and excluded from its scores.

What matters to you?

Drag the sliders to weight each category and re-rank the products to suit your priorities.

Picture
Gaming
Ergonomics & design
Connectivity
Features
Your ranking
KOORUI S2741LMYour pick100
Acer Nitro XV275K P5biipruzxYour pick89

Score breakdown

Picture
KOORUI S2741LM100
Acer Nitro XV275K P5biipruzx85
Decided by peak brightness (1,400 nits vs 1,000 nits) and DCI-P3 coverage (98 % vs 95 %).
Gaming
KOORUI S2741LM100
Acer Nitro XV275K P5biipruzx100
Ergonomics & design
KOORUI S2741LM100
Acer Nitro XV275K P5biipruzx80
Decided by pivot (Yes vs No).
Connectivity
KOORUI S2741LM100
Acer Nitro XV275K P5biipruzx100
Features
KOORUI S2741LM0
Acer Nitro XV275K P5biipruzx100

Picture

Screen size ?
27" (68.58 cm)
27" (68.58 cm)

Larger screens are more immersive; measured diagonally.

Resolution ?
4K
4K

The total pixel count; higher is sharper.

Panel type ?
IPS
IPS

The panel technology; OLED offers the best contrast.

Panel subtype ?
QD-Mini LED
Mini LED IPS

The more specific panel or backlight technology (e.g. QD-OLED, WOLED or Mini-LED VA).

Color depth ?
10 bit
10 bit

The native or supported bit depth used to reproduce colour gradients.

Screen coating ?
? Unknown (KOORUI S2741LM)
Matte

The display surface treatment and its balance of glare control and image clarity.

Refresh rate ?
160 Hz
160 Hz

Higher refresh rates are smoother for gaming and scrolling.

Response time ?
1 ms
1 ms

Grey-to-grey response; lower reduces motion blur.

Peak brightness ?
1,400 nits
1,000 nits

Higher brightness makes HDR highlights pop.

Contrast ratio ?
? Unknown (KOORUI S2741LM)
1,000 :1

The ratio between the brightest and darkest output.

DCI-P3 coverage ?
98 %
95 %

Wider colour gamut for more vivid, accurate colour.

sRGB coverage ?
? Unknown (KOORUI S2741LM)
? Unknown (Acer Nitro XV275K P5biipruzx)

Full sRGB coverage keeps everyday content and photos colour-accurate.

HDR ?
DisplayHDR 1000
DisplayHDR 1000

The certified HDR tier.

Pixel density ?
163 ppi
163 ppi

Pixels per inch; higher looks sharper.

Local dimming ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Dims parts of the backlight independently to improve contrast.

Local dimming zones ?
1,152
1,152

More independently controlled zones can improve HDR precision.

Gaming

Adaptive sync ?
FreeSync
FreeSync

Variable-refresh technology for tear-free motion.

Variable refresh rate ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Syncs the refresh rate to the GPU.

Motion blur reduction ?
? Unknown (KOORUI S2741LM)
? Unknown (Acer Nitro XV275K P5biipruzx)

Backlight strobing for clearer motion.

Input lag ?
? Unknown (KOORUI S2741LM)
? Unknown (Acer Nitro XV275K P5biipruzx)

The delay between an input and the image changing; lower is better.

VRR range ?
? Unknown (KOORUI S2741LM)
48-160 Hz

The minimum-to-maximum refresh range over which variable refresh rate operates.

Ergonomics & design

Aspect ratio ?
16:9
16:9

The width-to-height ratio (e.g. 16:9, 21:9).

Curvature ?
Flat
Flat

The curve radius (e.g. 1000R); blank for a flat panel.

Height adjustment ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Raise and lower the panel.

Tilt ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Angle the panel up and down.

Swivel ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Rotate the panel left and right.

Pivot ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Rotate to portrait orientation.

VESA mount ?
100 x 100 mm
75 x 75 mm

The VESA wall / arm mount pattern (e.g. 100 x 100 mm).

Connectivity

HDMI ports ?
2
2

More HDMI inputs connect more devices.

HDMI version ?
2.1
2.1

The highest HDMI standard supported by the monitor.

DisplayPort inputs ?
1
1

DisplayPort inputs, preferred for high refresh rates.

DisplayPort version ?
1.4
1.4

The highest DisplayPort standard supported by the monitor.

USB-C ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

A USB-C input, often with power delivery for laptops.

USB-C power delivery ?
90 W
90 W

Charges a connected laptop over USB-C.

USB hub ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Built-in USB ports for peripherals.

Built-in speakers ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

Integrated speakers.

Headphone output ?
KOORUI S2741LM
Acer Nitro XV275K P5biipruzx

A 3.5 mm audio output for headphones or external speakers.

KVM switch ?
? Unknown (KOORUI S2741LM)
Acer Nitro XV275K P5biipruzx

Control two computers with one keyboard and mouse.

Features

Webcam ?
? Unknown (KOORUI S2741LM)
Acer Nitro XV275K P5biipruzx

A built-in camera for video calls.

Microphone ?
? Unknown (KOORUI S2741LM)
Acer Nitro XV275K P5biipruzx

A built-in microphone for calls.

Ethernet ?
? Unknown (KOORUI S2741LM)
Acer Nitro XV275K P5biipruzx

A wired network port for USB-C docking.

Picture-by-picture ?
? Unknown (KOORUI S2741LM)
Acer Nitro XV275K P5biipruzx

Shows inputs from two computers side by side.

Specs last verified July 26, 2026KOORUI S2741LM: 31 of 42 specs verified (74%)Acer Nitro XV275K P5biipruzx: 39 of 42 specs verified (93%)Unverified specs show as Unknown — never estimated, never scored

What reviewers say

The bottom line

The KOORUI S2741LM comes out ahead, scoring 100 to 89 on our VS Score. It leads on Picture and Ergonomics & design. The Acer Nitro XV275K P5biipruzx answers back with stronger Features. Pick the KOORUI S2741LM unless Features matters most to you — then the Acer Nitro XV275K P5biipruzx is the smarter buy.

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