This 4K AOC monitor with MiniLED and 1,152 dimming zones got a great discount in the Czech Republic! It has high brightness and a special feature

4K OLED monitors are tempting – deep blacks, contrast, colors. However, the most affordable 27″ models start around 15 thousand and offer a typical SDR brightness of around 250 cd/m², which might not be enough in a well-lit room. AOC U27G4XM for 10,490 CZK takes a different approach: an IPS panel with Mini LED backlighting and 1,152 local dimming zones, pushing peak brightness to 1,200 nits. In a bright room, by a window, or with HDR content, this is a difference you’ll see immediately.

Quick summary:
✅ Makes sense if you want a 4K gaming monitor with high brightness and HDR that also works in a bright room – Mini LED with 1,152 zones and 1,200 nits for 10,490 CZK
⚠️ Consider if you’re looking for perfect blacks and infinite contrast – OLED still leads there. Mini LED has blooming (halo around bright objects on a dark background) and the native IPS contrast is 1,000:1.
💡 For 10,490 CZK you get 4K/160 Hz (or 1080p/320 Hz), Mini LED, G-Sync compatibility, HDMI 2.1, and brightness that OLED monitors in this price range cannot achieve.

Mini LED vs. OLED: why this monitor offers more brightness for less money

Mini LED backlighting works by having hundreds to thousands of small LED diodes behind the LCD panel, divided into zones that light up and dim independently. The AOC U27G4XM has 1,152 local zones – significantly more than conventional LED monitors, and even TVs with much larger diagonals. In practice, this means better contrast than classic IPS, because dark parts of the image truly darken, while bright parts remain at full brightness. The peak brightness of 1,200 cd/m² in HDR mode is a value that OLED monitors in the price category up to 15 thousand do not achieve – they typically range around 250–400 nits SDR and peak up to 800 nits in small areas.

The Mini LED compromise compared to OLED: the native contrast of an IPS panel is 1,000:1 (OLED has virtually infinite contrast), and with bright objects on a dark background, blooming may be visible – a halo around edges where one zone lights up and an adjacent one doesn’t dim perfectly. Color coverage of 151.8% sRGB and 96.5% AdobeRGB is excellent for a gaming monitor – for graphic work outside of professional calibration, it’s more than sufficient.

160 Hz in 4K, or 320 Hz in 1080p

Interesting feature: the monitor can switch from native 4K/160 Hz to 1080p/320 Hz mode. For competitive games (CS2, Valorant, Overwatch) where every millisecond matters, this is a practical choice – you lower the resolution but gain double the fluidity. For single-player AAA titles, you’ll stay at 4K with 160 Hz, where the image looks great. A 1 ms GtG response time and support for G-Sync compatible / Adaptive-Sync ensure smooth, tear-free visuals with both NVIDIA and AMD graphics. HDMI 2.1 connects consoles (PS5, Xbox Series X) at 4K/120 Hz.

Ports, ergonomics, and what’s missing

Connectivity: 1× DisplayPort 1.4, 1× HDMI 2.1, 4× USB-A (USB hub via USB-B upstream), 3.5mm headphone jack. The USB hub is a nice bonus – you can connect a keyboard, mouse, or flash drive directly to the monitor. The stand is height-adjustable and tiltable, and VESA 100×100 for arm mounting is also present. The weight of 7.1 kg is standard for a 27″ Mini LED monitor.

What’s missing: speakers (you’ll need headphones or external audio), USB-C (no single-cable setup with a laptop), and pivot (portrait orientation). These aren’t dealbreakers for a gaming monitor, but if you plan to use the monitor for office work with a laptop via USB-C, it’s a limitation. Color depth of 8 bit without FRC – fine for games and movies, but for professional color grading, you would definitely want 10 bit.

Verdict

AOC U27G4XM for 10,490 CZK is a monitor that makes sense to compare with models costing 15+ thousand. Mini LED with 1,152 zones and 1,200 nits brightness offers an HDR experience that standard IPS monitors cannot achieve, and OLED at this price cannot compete in terms of brightness. 4K/160 Hz (or 1080p/320 Hz), G-Sync compatibility, HDMI 2.1, and a USB hub for under 10.5 thousand – that’s a combination of features where AOC currently leads. If you’re not looking for the perfect blacks of an OLED panel and don’t mind the absence of USB-C, it’s one of the most interesting 27″ gaming monitors on the market.

If you’re looking for more monitors on sale, check out the current Alza Days.

Do you prefer Mini LED with high brightness, or OLED with perfect blacks?