10 Best 4 K 240 Hz Monitors 2025 in the United States

The ASUS ROG Swift PG27AQDM is a 27-inch QHD (2560x1440) gaming monitor that offers a very fast 240Hz refresh rate and an ultra-quick 0.03ms response time, making it excellent for smooth and responsive gaming. Its OLED panel stands out by delivering deep blacks, vibrant colors covering 99% of the DCI-P3 color range, and impressive HDR brightness peaks, which combine to provide a visually stunning experience especially for gamers who value image quality. The matte anti-glare coating helps reduce reflections without sacrificing color accuracy.

It supports G-SYNC compatibility, ensuring tear-free gameplay when paired with NVIDIA graphics cards, which helps maintain smooth visuals during fast action. Connectivity includes DisplayPort and USB 3.0 ports, which are standard for gaming setups. While this monitor is QHD and not 4K, it still hits the high refresh rate mark of 240Hz, which many gamers prioritize over resolution for competitive play.

The OLED panel does raise some concern about potential burn-in over time, but ASUS has implemented heat management and voltage optimization to minimize this risk. If you want a high-refresh, color-rich monitor with extremely fast response times and can accept QHD resolution instead of 4K, this model delivers a premium gaming experience. For those requiring 4K resolution or who are worried about OLED burn-in, exploring other options may be advisable.

The ASUS ROG Swift PG32UCDM is a top-tier choice for gamers seeking a 32-inch 4K monitor. The sharp UHD resolution (3840 x 2160) combined with the QD-OLED panel ensures stunning visuals and vibrant colors, making the gaming experience truly immersive. The standout feature is its 240Hz refresh rate, which provides ultra-smooth motion, perfect for fast-paced games. Additionally, the incredibly fast 0.03ms response time virtually eliminates motion blur, enhancing clarity during intense gaming sessions.

The integration of G-SYNC compatibility helps to reduce screen tearing, ensuring a smoother gaming experience. The monitor's advanced heat management with a custom heatsink and graphene film is designed to mitigate the risk of burn-in, which is often a concern with OLED panels. Furthermore, it covers 99% of the DCI-P3 color gamut and supports true 10-bit color, rendering more detailed and accurate colors. VESA DisplayHDR 400 True Black compliance also enhances the HDR performance, offering deeper blacks and brighter highlights.

However, some potential drawbacks include its substantial size and weight (21 x 38 x 49 inches, 19.4 pounds), which might require a sturdy setup. Also, while the monitor offers extensive connectivity options, including 90W USB-C, it may be relatively more expensive compared to other monitors in the market. Despite these minor drawbacks, the ASUS ROG Swift PG32UCDM stands out as an excellent monitor for gamers looking for high performance and stunning visual quality.

The Samsung 27-inch Odyssey QD-OLED G8 is a strong choice for gamers looking for a high-performance 4K monitor with a fast 240Hz refresh rate. Its QD-OLED panel offers vibrant colors and deep blacks thanks to DisplayHDR True Black 400, meaning games look stunning and details stand out, especially in dark scenes. The super-fast 0.03ms response time helps reduce motion blur, making fast-paced gaming feel smooth and sharp. AMD FreeSync Premium Pro support keeps gameplay fluid by syncing the monitor’s refresh rate with your graphics card, which helps avoid screen tearing and lag. The matte screen surface and glare reduction technology help minimize reflections, so you can focus on your game even in bright rooms. Plus, the ergonomic stand allows you to adjust the screen comfortably to your preferred height and angle.

Connectivity options include both DisplayPort and HDMI, which covers most gaming setups. One unique feature is the advanced cooling system that helps prevent overheating and potential screen burn-ins, which is a common concern with OLED displays. Some users may find the price higher compared to standard gaming monitors due to these premium features. Also, while the 27-inch size and 4K resolution provide sharp images, it requires a powerful computer to fully utilize the 240Hz refresh rate at such high resolution. For gamers with a high-end PC seeking excellent image quality combined with ultra-smooth gameplay, this monitor is an excellent fit.