The LG UltraGear OLED 39GX900A is LG’s statement piece for immersive gaming, a 39-inch curved WQHD OLED that pairs a dramatic 800R curve with a blistering 240Hz refresh and a near-instant 0.03ms response time. It’s built for players who want to be wrapped in the action with the deep blacks and perfect motion clarity only OLED can deliver.

An enthusiast display at this level deserves a close look at what actually sets it apart and how it fits within LG’s broader UltraGear OLED range. Here’s how the 39GX900A performs and who should consider it.

As an Amazon Associate we earn from qualifying purchases.

Design & Build

The 39GX900A cuts an imposing figure with its 39-inch ultrawide panel and aggressive 800R curve that pulls the edges toward you for genuine immersion. Build quality is premium, as expected from UltraGear, with an anti-glare OLED coating, a sturdy adjustable stand, and clean cable routing. Connectivity is comprehensive, including HDMI 2.1, DisplayPort 1.4, and USB-C, covering PCs and consoles alike. Some bundles pair it with extra HDMI cables and extended protection plans. It sits in a family alongside the 34-inch 34GX900A, the white 39GX90SA, and the massive 45-inch 45GX950A, but the 39-inch strikes a compelling balance of scale and desk practicality.

Performance

This is where the 39GX900A shines. Its WQHD 3440×1440 OLED panel delivers 240Hz with a 0.03ms response, producing motion so clean and blacks so deep that IPS and VA panels simply can’t compete. G-SYNC compatibility and FreeSync Premium Pro eliminate tearing, and VESA DisplayHDR True Black 400 gives HDR content real punch with per-pixel contrast. The 800R curve makes the ultrawide canvas feel enveloping in racing and open-world games, while the high refresh keeps competitive shooters razor sharp. Compared with the closely related 39GS95QE, the 39GX900A represents LG’s latest UltraGear OLED refinement, and it’s a genuine flagship-tier gaming experience.

Pros & Cons

  • Stunning OLED image with perfect blacks and per-pixel contrast
  • 240Hz and 0.03ms for exceptionally clean, fast motion
  • Immersive 800R curve on a 39-inch ultrawide canvas
  • Full adaptive sync with G-SYNC and FreeSync Premium Pro
  • Premium price befitting a flagship OLED
  • OLED burn-in caution for static desktop elements
  • Large footprint demands a deep desk

Alternatives to Consider

If 39 inches is too much desk, the 34-inch 34GX900A delivers the same OLED quality in a more compact ultrawide. Players wanting even more immersion and a dual-mode option can step up to the 45-inch 45GX950A with its 5K2K resolution. And budget-conscious gamers who can live without OLED will find fast IPS ultrawides at lower prices. Match the size and panel technology to your desk depth and how much you value OLED’s image quality.

Frequently Asked Questions

Is the LG 39GX900A good for competitive gaming?

Yes. Its 240Hz refresh and 0.03ms response deliver the fast, clear motion competitive players want, and adaptive sync eliminates tearing. The ultrawide format also boosts immersion in most titles.

Should I worry about OLED burn-in?

Modern OLEDs include mitigation features, and for mixed gaming and media use burn-in risk is low. If you display static desktop elements for many hours daily, take advantage of the panel’s protection settings and vary your content.

What resolution is the 39GX900A?

It’s a WQHD ultrawide at 3440×1440, which balances sharpness with performance, letting high-end GPUs push its 240Hz refresh in demanding games more easily than a 4K panel would.

How does it compare to the 34-inch and 45-inch models?

The 34-inch 34GX900A offers the same OLED quality in a smaller size, while the 45-inch 45GX950A adds a higher 5K2K resolution and dual-mode. The 39-inch balances immersive scale with desk practicality.

Verdict

The LG UltraGear OLED 39GX900A is a flagship gaming monitor that delivers a genuinely immersive, best-in-class experience, combining OLED’s perfect contrast with 240Hz speed and an enveloping 800R curve. It commands a premium and needs a deep desk, but for enthusiasts who want the finest curved ultrawide gaming display, it’s a superb choice. If the size is too much, the 34-inch sibling offers the same magic in a smaller package.