Samsung’s upcoming Galaxy Z TriFold is getting attention for its unique hinge system and shock-absorbing screen, but it turns out there is a neat PC trick that Samsung did not talk about. The Trifold can function as a secondary monitor for your PC. During the reveal, Samsung highlighted that it’s their first phone to support standalone DeX. However, the second-screen ability was nowhere in the official notes, making it feel like a hidden productivity upgrade waiting to be discovered.
According to Sam Mobile, the Galaxy Z TriFold can support a Second Screen feature that turns the unfolded display into an external monitor for a Windows PC or laptop. The phone appears to support the same Second Screen feature found on Samsung Galaxy tablets, which lets the device act as a wireless extra display for a Windows PC.
Second Screen setup on Galaxy Z TriFold
Second Screen relies on Miracast, which is a wireless display standard supported by most Windows PCs. On the TriFold, it can be enabled by going to Settings > Connected devices > Second screen. On your Windows computer, head to System > Settings > Display and select Connect to a wireless display. You can also press Windows + K to pull up the Cast menu instantly.
When the two devices connect, the TriFold works as an extended monitor instead of simply mirroring the laptop screen. Installing Samsung’s Second Screen app on your PC gives extra control over the experience, including better aspect ratio handling and smoother reconnection during regular use.
A foldable phone that opens into a tablet-sized panel becomes a natural side display for reference notes, messaging apps, or email. It helps you break out of the tight single-screen layout that most laptops force you into while traveling or working in small spaces. It will obviously not replace a large monitor for complex work, but it reduces the hassle of juggling tabs or carrying extra hardware. For a broader look at what this kind of form factor could mean for the future of foldables, you can read more here.
