39″ OLED monitor from LG dropped by a third! It's curved, has 240 Hz and webOS operating system

A giant curved OLED ultrawide that can handle gaming, work, and streaming – and now for significantly less. The LG UltraGear 39GX90SA-W on Alza costs 21 990 Kč instead of the original 32 990 Kč. For this price, you get a 39″ OLED panel with 240 Hz, a built-in Smart TV system, and USB-C laptop charging. However, it’s a product with a clearly defined target audience – and compromises that are good to know. You can find details in the product detail on Alza.

Quick summary:
✅ Makes sense if you’re looking for a large curved OLED for gaming and movies with 240 Hz and want a monitor that also functions as a Smart TV without a computer.
⚠️ Consider carefully if you plan to use it primarily for text work – the 3440 × 1440 resolution on 39 inches means noticeably less sharp text than on smaller panels.
💡 For 21 990 Kč, you get a 39″ OLED, 240 Hz, webOS, USB-C 65W PD, Wi-Fi, Bluetooth, and a remote control – which is a very good price for an ultrawide OLED with these features.

It’s a beast for games and movies

LG 39GX90SA features a WOLED panel with infinite contrast, 96% DCI-P3 coverage, and a peak HDR brightness of around 780 nits. The 800R curvature creates a sense of immersion in games or movies. A 0.03 ms response time and 240 Hz with G-Sync, FreeSync Premium, and Adaptive Sync support mean it’s one of the best panels on the market for gaming. Reviewers confirm that the OLED colors and contrast are impressive on this monitor – 39 inches in 21:9 is a format that doesn’t exist in the standard TV segment.

Smart features via webOS work just like on LG TVs: Netflix, YouTube, GeForce Now, Apple TV, and more. You can connect a Bluetooth gamepad and play cloud games without a computer. The remote control is a nice bonus – controlling the monitor is more convenient than using a joystick on the body. USB-C with 65W charging connects and charges a laptop with a single cable.

What to watch out for

The main issue mentioned by users on Alza and in foreign reviews: text is blurry on 39 inches at 3440 × 1440. The pixel density is lower than on 34″ ultrawides with the same resolution, which is noticeable when working with documents and browsing the web. Color artifacts typical of OLED subpixel structure appear behind black text. One reviewer on Alza summarizes: it’s great for games, but he returned it for work. Another recommends having a separate IPS panel for work.

Other criticisms: the menu is sometimes slow, and switching between gaming and standard modes takes several seconds. The speakers are weak – for serious listening, you need headphones or external audio. The 800R curvature is pronounced and might not suit everyone. And Smart TV functions on a curved monitor are a curiosity – they work, but watching Netflix on an 800R curve up close is a different experience than on a TV.

Verdict

The LG UltraGear 39GX90SA for 21 990 Kč is a monitor for people who want maximum gaming immersion on a giant OLED panel – and at the same time appreciate Smart TV features and USB-C charging. It’s a great choice for games and movies, but not for office work. If you know what you’re getting into, the 11,000 Kč discount from the original price is an excellent opportunity. If you’re looking for an ultrawide for both work and games, the 34″ version from the same series will offer sharper text. You can find other monitors in the current Alza Days.

Do you use an ultrawide monitor, or is a classic 16:9 enough for you? And could you handle 800R curvature?