Sidecar in macOS turns your iPad into a second display, but it's limited to certain Macs and iPads. Thankfully, a few ...

spacedesk is a free app that lets you use an Android tablet as a second display for your Windows PC. Learn how to set up and use it.

You can use it as a TV, a notebook, a sketchpad, a gaming console, or a laptop (with the right accessories). But one of its most underrated features is its ability to be used as a second monitor.

While there are several solutions to use a tablet as a second display for your PC, most are paid, and many of the free ones have limitations and don’t provide the best user experience ...

I also have a S9 ultra tablet that is wireless to the same router. Can I use my S9 tablet as a second monitor? Or does my desktop have to be connected wirelessly also for this to work? Thanks!