Acer Nitro KG242Y Gaming Monitor Review UK 2026

Manufacturers love throwing around “1ms response time” claims that bear no resemblance to what you’ll actually see on screen. I don’t test monitors with synthetic benchmarks that look impressive in marketing slides. I plug them in, play actual games, and see if they deliver what’s promised. The Acer Nitro KG242Y arrived claiming to be a proper gaming monitor at a budget price. After about a month of testing with everything from competitive shooters to cinematic RPGs, I’ve got a clear picture of what this panel actually delivers.

The VA panel here is typical of what you’ll find in budget gaming monitors. Contrast measures around 2800:1, which is roughly three times what you’d get from a cheap IPS panel. Blacks actually look black rather than grey. That’s brilliant for horror games or anything with dark environments.

But VA panels have a dirty secret. Those slower pixel transitions cause visible smearing when dark objects move across darker backgrounds. I noticed it immediately in CS2 when tracking enemies through shadowy corridors. It’s not deal-breaking for most games, but competitive players will feel it.

Viewing angles are mediocre. Sit directly in front and colours look fine. Shift 30 degrees to either side and you’ll see contrast drop and colours shift towards grey. Fine for solo gaming, less ideal if mates are watching over your shoulder.

That “1ms” claim is pure marketing fiction. Real grey-to-grey transitions average 8-12ms depending on the colour change. Dark transitions are slower, causing the smearing I mentioned earlier. It’s acceptable for casual gaming but won’t satisfy competitive players used to fast IPS or TN panels.

Acer claims 1ms response time. That’s rubbish. With my pursuit camera testing, actual grey-to-grey transitions average between 8-12ms. Dark-to-dark transitions are even slower, sometimes hitting 15ms. This is typical for budget VA panels and there’s no magic here.

The monitor offers three overdrive settings: Off, Normal, and Fast. Off is too slow and causes obvious ghosting. Fast introduces visible overshoot (inverse ghosting) where you see bright halos trailing moving objects. Normal is the sweet spot – it reduces smearing without adding distracting artefacts.

Input lag measures around 12ms at 100Hz, which is perfectly fine. You won’t notice any delay between your inputs and on-screen action. Combined with the 100Hz refresh, the overall responsiveness feels decent for this price bracket.

There’s no HDR here and frankly, I prefer that honesty to monitors that claim “HDR support” with 250 nits of brightness and no local dimming. Those fake HDR implementations often make content look worse than good SDR.

Colour accuracy is acceptable but not impressive. Out of the box, the panel covers about 95% of sRGB with a Delta E average of 3.2. That’s fine for gaming but content creators will want something better. Colours look slightly washed out and the white point skews cool (around 7200K instead of the ideal 6500K).

I calibrated the panel with my X-Rite i1Display Pro and got Delta E down to 1.8, which is respectable. But most buyers won’t bother calibrating, and the out-of-box experience is merely adequate.

The contrast ratio is the panel’s saving grace. At 2800:1, blacks actually look black rather than the grey you’d get from budget IPS panels. This makes a genuine difference in dark games like Resident Evil or Alan Wake 2. Brightness maxes out at 220 nits, which is adequate for indoor use but struggles if you’ve got windows behind you.

I spent most of my testing time playing competitive shooters since that’s where this monitor is supposedly aimed. In Valorant and CS2, the 100Hz refresh definitely helps. Panning feels smoother than 60Hz and I found tracking moving targets easier. The low input lag means your actions feel immediate.

But that VA smearing is a problem in darker maps. Tracking an enemy through the shadows on Bind or Haven in Valorant, you’ll notice a slight trail behind their character model. It’s not severe enough to ruin the experience, but it’s there. Fast IPS panels at slightly higher prices don’t have this issue.

Brighter, more colourful games fare better. Fortnite, Rocket League, and Overwatch 2 all look fine. The motion clarity is acceptable and the deep blacks make nighttime scenes more atmospheric than they’d look on budget IPS panels.

Single-player games work well. The high contrast ratio makes horror games and dark RPGs look properly moody. I played through sections of Alan Wake 2 and Resident Evil 4 Remake, and the blacks added genuine atmosphere. Yes, you’ll see some smearing in fast camera pans, but it’s less noticeable when you’re not tracking fast-moving targets.

Console gaming is limited. The HDMI 1.4 ports max out at 1080p60, so you can’t take advantage of the 100Hz refresh with a PS5 or Xbox Series X. That’s disappointing but typical at this price point.

The good news is there’s a 100×100 VESA mount on the back. If the stand annoys you, spend £20-30 on a basic monitor arm and you’ll have much better ergonomics. That’s what I’d recommend for anyone buying this.

Bezels are thin plastic that feels cheap but looks fine from normal viewing distance. The overall aesthetic is plain black with a bit of red accent trim – standard “gaming” design language that won’t offend anyone.

Connectivity is minimal. You get one DisplayPort 1.2 and one HDMI 1.4. That’s it. The HDMI limitation to 1.4 means you can’t run 100Hz through it – you’re stuck at 60Hz. Use the DisplayPort connection for your PC and save the HDMI for a console or secondary device.

There’s a 3.5mm audio jack for passing through audio from your PC, but no built-in speakers. Most gamers use headphones anyway, so that’s not a huge loss. No USB hub either, which is standard at this price.

The AOC 24G2U is the obvious competitor. It costs roughly £50-60 more but offers 144Hz refresh, an IPS panel with better response times and viewing angles, and a fully adjustable stand. If you can stretch the budget, it’s the better gaming monitor. The faster pixel response and higher refresh rate make a genuine difference in competitive games.

But the Nitro KG242Y has one advantage: that VA contrast. If you play a lot of atmospheric single-player games and value deep blacks over ultimate motion clarity, the extra £50-60 might not be worth it to you.

The Samsung S24R350 sits below both in price at around £90. It’s a 75Hz VA panel aimed more at office work than gaming. Slower response times and lower refresh make it less appealing for gaming, though it’s a solid budget option if you just want a decent all-rounder.

Where does that leave the Nitro KG242Y? It’s the middle option. Better for gaming than the Samsung, worse than the AOC, but cheaper than the AOC. If your budget is genuinely tight and you want 100Hz refresh with decent contrast, it makes sense. If you can find another £50, the AOC is worth the upgrade.

Let me be blunt about value. This monitor exists because Acer stripped out everything non-essential to hit an aggressive price point. You’re getting a functional VA panel with 100Hz refresh and acceptable response times. Everything else is bare minimum.

The stand is rubbish. The colour accuracy is mediocre. There’s no HDR, no USB hub, no fancy features. But that’s fine, because those aren’t what you’re paying for. You’re paying for smooth motion in esports titles and deep blacks in atmospheric games.

At this price point, that’s a reasonable trade. If you’re a student or budget gamer who primarily plays Valorant, CS2, or League of Legends, you don’t need perfect colour accuracy or HDR. You need high refresh and low input lag. This delivers both.

But understand what you’re not getting. If you play a lot of AAA single-player games and care about visual fidelity, the washed-out colours and limited brightness will frustrate you. If you’re coming from a decent IPS panel, the viewing angles will feel like a step backwards. If you edit photos or videos, look elsewhere.