10 Best Second Monitor 2025 in the United States

The KYY 15.6-inch Portable Monitor is a solid option for those seeking a second monitor, offering Full HD 1080p resolution for crisp and clear visuals. The IPS panel ensures vibrant colors and wide viewing angles, making it suitable for various uses, including gaming, multimedia, and professional tasks. Its compact and lightweight design (1.7 pounds and 0.3 inches thick) makes it highly portable, ideal for users who need a second screen on-the-go.

Connectivity is versatile with two USB Type-C ports and a Mini-HDMI port, allowing easy connection to laptops, smartphones, gaming consoles, and more. However, it’s important to note that compatibility requires devices to support Thunderbolt 3 or USB-C 3.1. The monitor also includes built-in speakers and a durable smart cover that doubles as a stand, although the audio quality may not be as immersive as external speakers. The matte screen surface reduces glare, providing a comfortable viewing experience even in bright environments.

One downside is the lack of adjustable stand height or rotation, offering limited ergonomic flexibility. Despite minor drawbacks, the KYY Portable Monitor is a practical and high-performing choice for users needing a versatile and portable second screen.

The MNN Portable Monitor is a handy 15.6-inch Full HD display perfect for those needing a second screen. With a resolution of 1920x1080, it offers clear and detailed images, which is great for both work and entertainment. The IPS matte screen ensures vibrant colors and wide viewing angles, making it easier on the eyes for extended use. The anti-blue light feature is a nice touch for reducing eye strain during long hours of use.

One of its standout features is its portability. It's lightweight and ultra-slim, making it easy to carry around, whether you're traveling or just moving from room to room. The monitor comes with a smart cover that doubles as a stand, providing protection and convenience. Connectivity is a strong point with this monitor, offering two full-featured USB-C ports that support power and display signal transmission. This means you can easily connect it to a variety of devices, including laptops, PCs, phones, and gaming consoles.

The monitor also includes built-in speakers, which is a nice addition, although they might not provide the best sound quality for those looking for an immersive audio experience. Adjustability options like different display modes (Copy, Extended, Second Screen, Portrait) and HDR support enhance its versatility, making it suitable for both work and gaming. While the monitor offers significant benefits, there are a few limitations. It relies heavily on having compatible USB-C ports, and the sound quality from the built-in speakers may not meet the expectations of all users. Additionally, the reliance on the original USB-C cable means that losing it could be a hassle. Despite these minor drawbacks, the MNN Portable Monitor is an excellent choice for those needing a versatile and portable second screen solution.

The ARZOPA 16.1'' Portable Gaming Monitor offers several attractive features for those looking to expand their screen space or enhance their gaming experience. The 16.1-inch screen is large enough to provide a noticeable improvement in productivity or gaming immersion. With a Full HD resolution of 1920 x 1080 pixels, it delivers clear and sharp visuals. The highlight of this monitor is its 144Hz refresh rate, which ensures smooth and fluid motion, making it particularly appealing for gamers who need fast response times, though it lacks adaptive sync technologies like FreeSync or G-Sync that can further enhance gaming visuals by reducing screen tearing.

The IPS panel type provides good color accuracy and wide viewing angles, and with 106% sRGB coverage, colors will appear vibrant and realistic. This makes it suitable for creative work as well as entertainment. Connectivity is straightforward with two USB Type-C ports and a Mini HDMI port, supporting plug-and-play use with laptops, gaming consoles, and other devices. The built-in kickstand adds convenience, allowing for tilt adjustment to find a comfortable viewing angle, though its adjustability might be limited compared to fully adjustable stands.

Weighing only 1.66 pounds, it's highly portable and easy to carry around. However, the glossy screen surface might be prone to reflections in bright environments. The monitor suits gamers and professionals who need a reliable second monitor for work or play on the go, with key strengths in high refresh rate and color accuracy, though it lacks some advanced gaming features and has some limitations in adjustability and screen surface reflectivity.