There's no need to buy a separate device.

spacedesk is a free program that turns an Android tablet into a portable display for your Windows PC that you can easily carry with you anywhere. You can use it when you need extra screen space or ...

Google has been working on bringing desktop-like freeform windows to Android since the days of Android Nougat. The feature dwindled for a while and was recently revived, likely because of Google’s aim ...