Whether you're a traveling exec, a gamer, or a graphic designer, a portable second monitor can add an extra dimension to your work or play. We've tested most of the major models. Check out our top ...

spacedesk is a free program that turns an Android tablet into a portable display for your Windows PC that you can easily carry with you anywhere. You can use it when you need extra screen space or ...

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Need an extra monitor but don't want to buy one? Your phone or tablet is already the perfect second screen—you just need the right app to make the most out of it. GlideX is a cross-device utility that ...

TL;DR: Add a second screen anywhere with the Mobile Pixels Duex Float 2 Pro 16-inch portable monitor, now $279.99 (reg. $389.99). Working from a laptop has its limits. You start strong with one screen ...

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