The 9 Best Portable USB Monitors
This wiki has been updated 13 times since it was first published in February of 2018. If you want to take your display on the road or add a screen to your current setup, try one of these portable USB monitors. Many of the options in our selection require nothing more than a single cable to provide them with both power and a data stream, allowing you to keep your space clean and clutter-free and your luggage light. Some are also touchscreens and have built-in speakers. When users buy our independently chosen editorial selections, we may earn commissions to help fund the Wiki. Skip to the best portable usb monitor on Amazon.
September 25, 2019:
A good portion of the models on our list take advantage of the latest connectivity technology and have a USB-C port. The great thing about this specific iteration of USB is that it can transfer both power and data, meaning you need just one cable between your mobile display and input device.
When comparing monitors, refresh rate is often a spec that is scrutinized. It is expressed in hertz and measures how many times per second a screen is updated. The higher the refresh rate, the smoother the picture will be. Unfortunately, pretty much all of the portable USB monitors on the market will have a standard 60 Hz refresh rate, which is decent, but not something you'll want to rely on as your main display for rendering high-end gaming graphics.
Extra features on most models are focused on facilitating portability and productivity. For instance, our top pick, the Asus ZenScreen MB16AC, has a blue-light filter. Because light with a wavelength between 380 and 490 nanometers can disrupt a person's circadian rhythm and cause eyestrain, this feature can help you stay focused on the task at hand, while saving you money on eye drops.
The Asus is also available with a battery pack, which can be a double-edged sword in terms of portability. On one hand, it will add weight to the unit but on the other hand you won't have to rely on a power outlet or drain your laptop's battery to run it.