With Sidecar, you can use your iPad to mirror content to your Mac or extend it to your tablet.

Duet Display: A premium app that works on both Windows and macOS, Duet lets you use your iPad or Android tablet as a second screen. It supports lag-free performance and wired or wireless connections.

Utilizing a tablet as a second screen enhances productivity by expanding workspace for remote work, online learning, and ...

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!

Or you can flip the second screen so that it’s back-to-back with the primary display, allowing you to either fold the screen down over the keyboard for use in tablet mode.

Want to give that old tablet a second life but can't think of anything better than a second monitor? Here are five inspiring uses for an ancient android tablet.