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

How to Use spacedesk to Mirror or Extend Your PC’s Screen Onto an Android Tablet Before you can mirror or extend your Windows PC’s screen to your Android tablet, you need two things.

Duet Display lets you use any Android device as a second screen for your Mac, whether wired or wireless, giving you extra space for multitasking.