How does Samsung DeX work on the Galaxy S26 Ultra?

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🖥️Samsung DeX is one of those features that sounds gimmicky until you actually use it. Connect your Galaxy S26 Ultra to a monitor, and you've got a desktop interface running from your phone.

There are a few ways to set it up. The easiest is wired: grab a USB-C to HDMI adapter (around $15-30), plug it into a monitor or TV, and DeX launches automatically. The screen shows a desktop layout with resizable windows, a taskbar, and full keyboard/mouse support.

Don't want cables? Wireless DeX works with most smart TVs. Swipe down the notification panel, tap the DeX button, and select your TV. It's convenient, though there's slightly more lag than wired connections.

What can you actually do with DeX? More than you'd expect. Microsoft Office works great. Google Docs, Sheets, Slides—all good. Video calls on Zoom or Teams work fine. You can browse the web, watch Netflix on the big screen, or use Samsung Notes with the S Pen on your phone while typing on a keyboard.

What doesn't work as well? Some apps weren't designed for big screens and look awkward when stretched. Gaming is inconsistent. And if you're trying to do serious work like video editing, you'll hit limitations.

The S26 Ultra's Snapdragon 8 Elite Gen 5 makes DeX smoother than ever. Multiple apps running simultaneously without stuttering. Pair it with a Bluetooth keyboard and mouse, and you've got a surprisingly capable travel setup.

Is it a laptop replacement? No. But for light work, presentations, or wanting a bigger screen, DeX is genuinely useful.