Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" vs LG 45GX900A-B 45" Ultragear OLED

Both are flagship contenders for 2026, but they target subtly different buyers. The Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" is listed at ~$683.55 and earns a 4.6/5 score in our research synthesis, while the LG 45GX900A-B 45" Ultragear OLED comes in at ~$1,158.00 with a 4.4/5 rating — a 0.2-point gap that's smaller than it looks on paper.

If price is your tiebreaker, the Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" saves you ~ $474.45 compared to the LG 45GX900A-B 45" Ultragear OLED, based on the current catalog reference prices. If you optimize for raw user satisfaction and reviewer ratings, the Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" edges ahead. The rest of this comparison breaks down where each one wins, who it's right for, and how they hold up in real-world day-to-day use.

Its standout strength — excellent gaming monitors fundamentals — is the kind of advantage you notice on day one and continue to appreciate months later.

It's also a strong fit if you value reliability and build quality. Combined with a polished overall experience, the Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" feels like a product designed by a team that obsesses over the details that matter most in the gaming monitors category.

The trade-off is that Good value for the price, but a sale on the next tier up could change the math.. If that compromise doesn't bother you, this is one of the most well-rounded picks you can make around the ~$683.55 price point.

Where the Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" optimizes for one philosophy, the LG 45GX900A-B 45" Ultragear OLED bets on a different combination of priorities — and the result is a product that wins decisively for a specific audience.

Its biggest advantage is an excellent gaming monitors experience. That's backed up by solid build quality and feature breadth, which is exactly what you want at this price point.

The catch: You're paying for the best, but last-gen models do 80% of the job for half the price.. For most buyers, that's a perfectly acceptable trade for what you get back — especially around ~$1,158.00.

Think long sessions where the difference between "good" and "great" actually changes how you feel about the product. Its supporting features round out the experience nicely.

The LG 45GX900A-B 45" Ultragear OLED, by contrast, is the better pick for the user whose week looks more like a different daily routine. It handles those scenarios with more confidence than the Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34", and its broader feature set adds welcome flexibility.

Travel, commuting, work-from-anywhere, and weekend use all play out slightly differently between the two. The Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" is the safer pick if you don't want to think about the purchase at all — set it up once and it just works. The LG 45GX900A-B 45" Ultragear OLED rewards owners who are willing to dig into the settings to extract that extra 10–15% of performance.

The Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" earns its 4.6/5 with consistent, predictable everyday performance, while the LG 45GX900A-B 45" Ultragear OLED (4.4/5) counters with a different but equally compelling combination of strengths.

Build quality on both is what you'd expect at this tier — premium materials, careful fit and finish, and a feel-in-the-hand that justifies the price. Neither feels cheap, neither flexes when you handle it, and both should comfortably last 3–5 years of daily use without major issues.

Where they part ways is in feel during extended sessions. The Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" has its own ergonomic flavor, while the LG 45GX900A-B 45" Ultragear OLED brings a different ergonomic profile. Owner reports we've cross-referenced converge on the same point — the right one is usually obvious within five minutes in person.

For shoppers on a tighter budget, that gap can pay for accessories, a case, an extended warranty, or simply stay in your pocket.

But "cheaper" isn't the same as "better value." The LG 45GX900A-B 45" Ultragear OLED earns its premium through feature upgrades and refinement, and if those upgrades match how you actually use the product, the math works out in its favor over a 3-year ownership window.

Our take: if the LG 45GX900A-B 45" Ultragear OLED's headline advantage genuinely matters to you, the ~ $474.45 premium is worth it. If you're not sure, the Alienware AW3423DWF Curved QD-OLED Gaming Monitor 34" is the smarter starting point — you can always upgrade later, and resale value on top-tier gaming monitors stays strong.