42 facts in comparison
Acer Nitro KG271U Z2bmiipx vs Samsung Odyssey G4 G40H 25-inch
This comparison puts the Acer Nitro KG271U Z2bmiipx and Samsung Odyssey G4 G40H 25-inch side by side — two monitors measured against the same 42-spec sheet, with every meaningful gap scored and explained. On our weighted VS Score the Acer Nitro KG271U Z2bmiipx finishes ahead, 78 to 64 — a decisive result.
The single biggest measurable gap is resolution: 1440p vs 1080p. Street prices currently start at $ 199.99 for the Acer Nitro KG271U Z2bmiipx and $ 229.99 for the Samsung Odyssey G4 G40H 25-inch. That is a $ 30 premium for the Samsung Odyssey G4 G40H 25-inch — worth keeping in mind as you read the score gaps below. A transparency note before you dive in: the spec sheets are Acer Nitro KG271U Z2bmiipx 74% and Samsung Odyssey G4 G40H 25-inch 79% complete. Anything unverified shows as Unknown and is left out of the scores — we never estimate a missing value.
Where the Acer Nitro KG271U Z2bmiipx beats the Samsung Odyssey G4 G40H 25-inch
- A slightly bigger screen ?27" (68.58 cm) vs 25" (63.5 cm)
- 1440p Resolution ?1440p vs 1080p
- A much faster response time ?0.5 ms vs 1 ms
- A higher pixel density ?109 ppi vs 90 ppi
- More HDMI ports ?2 vs 1
- Has built-in speakers ?
Where the Samsung Odyssey G4 G40H 25-inch beats the Acer Nitro KG271U Z2bmiipx
- A slightly higher refresh rate ?300 Hz vs 275 Hz
- G-Sync Compatible Adaptive sync ?G-Sync Compatible vs FreeSync
- Has height adjustment ?
- Has swivel adjustment ?
- Has pivot adjustment ?
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.
- ResolutionPicture1440p vs 1080p — advantage Acer Nitro KG271U Z2bmiipx
The total pixel count; higher is sharper.
- Response timePicture0.5 ms vs 1 ms — 50% less for the Acer Nitro KG271U Z2bmiipx
Grey-to-grey response; lower reduces motion blur.
- Height adjustmentErgonomics & designNo vs Yes — only the Samsung Odyssey G4 G40H 25-inch has it
Raise and lower the panel.
- Adaptive syncGamingFreeSync vs G-Sync Compatible — advantage Samsung Odyssey G4 G40H 25-inch
Variable-refresh technology for tear-free motion.
- SwivelErgonomics & designNo vs Yes — only the Samsung Odyssey G4 G40H 25-inch has it
Rotate the panel left and right.
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 Acer Nitro KG271U Z2bmiipx takes the category 83 to 49 — driven by resolution (1440p vs 1080p).
- Best for connectivity Acer Nitro KG271U Z2bmiipx takes the category 100 to 73 — driven by HDMI ports (2 vs 1).
- Best for gaming Samsung Odyssey G4 G40H 25-inch takes the category 100 to 45 — driven by adaptive sync (FreeSync vs G-Sync Compatible).
- Best for ergonomics & design Samsung Odyssey G4 G40H 25-inch takes the category 100 to 20 — driven by height adjustment (No vs Yes).
- On a budget Acer Nitro KG271U Z2bmiipx is the cheaper way in at $ 199.99, and still scores 78 overall.
- The safe all-rounder Acer Nitro KG271U Z2bmiipx wins more of the categories that carry real weight, topping the overall VS Score at 78.
Where each one falls short
Acer Nitro KG271U Z2bmiipx
- Height adjustment: No vs Yes
- Adaptive sync: FreeSync vs G-Sync Compatible
- Swivel: No vs Yes
- 11 specs are unreported (shown as Unknown) and excluded from its scores.
Samsung Odyssey G4 G40H 25-inch
- Resolution: 1440p vs 1080p
- Response time: 0.5 ms vs 1 ms
- HDMI ports: 2 vs 1
- 9 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.
Score breakdown
Picture
Gaming
Ergonomics & design
Connectivity
Features
Specs last verified September 2, 2026Acer Nitro KG271U Z2bmiipx: 31 of 42 specs verified (74%)Samsung Odyssey G4 G40H 25-inch: 33 of 42 specs verified (79%)Unverified specs show as Unknown — never estimated, never scored
Where to buy
Prices and availability may change. Check the retailer before buying. We may earn a commission on purchases.
What reviewers say
The bottom line
The Acer Nitro KG271U Z2bmiipx is the clear winner, scoring 78 to 64 on our VS Score. It leads on Picture and Connectivity. The Samsung Odyssey G4 G40H 25-inch answers back with stronger Gaming and Ergonomics & design. Pick the Acer Nitro KG271U Z2bmiipx unless Gaming and Ergonomics & design matters most to you — then the Samsung Odyssey G4 G40H 25-inch is the smarter buy. It is also the most affordable of the bunch, which makes the choice easier still.
Latest comparisons
vs
vs
vs
vsvsvs
vs
vs
vs
vs
vs
vs
vsLatest Monitors
