10 Best Portable Monitor For Iphone 2026 in the United States

The MNN 4K Portable Monitor features a 15.6-inch screen with a sharp 4K Ultra HD resolution, delivering clear and detailed images—ideal for watching videos, photo editing, or gaming. Its IPS panel provides wide viewing angles and vivid colors with 100% Adobe RGB support, which is especially beneficial for those who prioritize color accuracy. The screen brightness of 400 nits is suitable for indoor use but might be somewhat dim in bright outdoor environments. Additionally, the matte surface helps reduce glare, improving visibility under various lighting conditions.

In terms of connectivity, the monitor is equipped with two USB-C ports and a mini HDMI port, enabling easy connections to laptops, gaming consoles, and even smartphones like the iPhone (though some phones may require extra power to operate the monitor). The USB-C ports support both video transmission and power delivery, minimizing cable clutter—a great feature for travel or mobile work. The monitor is also slim and lightweight at just 1.8 pounds, making it easy to carry in a backpack.

The monitor lacks touchscreen capability, so interaction is limited to the connected devices. While it supports HDR and has a 60Hz refresh rate, it might not meet the needs of users seeking ultra-smooth gaming performance. The built-in speakers offer added convenience but are not a substitute for dedicated audio equipment. This portable monitor is an excellent choice for those needing a high-quality, color-accurate external display, especially for tasks like photo editing, streaming, or casual gaming; however, users requiring touchscreen functionality or brighter outdoor visibility may want to explore other options.

The ASUS ZenScreen 15.6” 1080P Portable USB Monitor (MB16AC) offers a large 15.6-inch Full HD (1920 x 1080) IPS display, which ensures clear and vibrant visuals. This makes it a suitable choice for users looking to extend their iPhone screen, especially for tasks that require a larger display.

Its lightweight design, weighing just 1.72 pounds, and slim profile (0.3 inches) make it highly portable and easy to carry around, perfect for on-the-go use. The smart cover and pen hole provide added convenience for setting it up in both landscape and portrait modes with auto-rotation functionality, enhancing its usability across different needs.

The monitor's connectivity is robust with a hybrid signal solution supporting both USB Type-C and Type-A sources, though a DisplayLink driver is needed for Type-A connections. This broad compatibility means it can be paired with a variety of devices, not just iPhones, making it versatile. However, a significant drawback for iPhone users is the lack of native touchscreen capability, limiting interactive use. Additionally, the product does not mention having an internal battery, implying that it needs to be powered via the connected device, which could be a limitation in terms of true portability.

The ASUS Eye Care technology, which includes flicker-free backlighting and a blue light filter, is a strong feature for reducing eye fatigue during extended use. Users also get a 3-month complimentary subscription to Adobe Creative Cloud, which is a nice bonus for creative professionals. The ASUS ZenScreen MB16AC excels in screen quality, portability, and eye care features, though its lack of touchscreen capability and potential reliance on external power may be limitations depending on your specific needs.

The ViewSonic TD1655 is a 15.6-inch portable monitor with a Full HD 1080p resolution, offering clear and sharp visuals that are well-suited for watching videos, browsing, or working on the go with your iPhone. It features an IPS touchscreen that supports 10-point touch, making interactions like swiping and writing smooth and natural, which is handy if you want to use touch controls similar to your phone. Its slim design (just 0.6 inches thick) and light weight (about 2.2 pounds) make it easy to carry in a backpack or purse, which is great for portability.

The monitor uses USB-C for both video and power, reducing cable clutter since you only need one cable to connect and charge it, provided your iPhone supports USB-C connection or you have the appropriate adapter. The included built-in stand with a magnetic cover allows you to easily position the screen in portrait or landscape orientation, adding flexibility for different viewing needs. It also has dual speakers, adding convenience if you want sound without extra devices.

Because it relies on USB-C for power, users with older iPhones that use Lightning ports may need additional adapters or hubs, which can add complexity. The monitor uses a matte screen surface which helps reduce glare but might slightly soften colors compared to glossy screens. Additionally, it requires one A battery, likely for some built-in function like the stand or speakers, which is a minor extra to keep in mind. This monitor provides a good balance of size, image quality, and touch capability for iPhone users seeking a portable secondary screen, although some might need adapters to connect it seamlessly.