Use the iPhone as the Mac webcam
Continuity Camera turns the iPhone into a camera and microphone for FaceTime and video calls.
Tips tagged #continuity
Use an iPad as a second display, or control it from the Mac
Sidecar extends the Mac desktop onto an iPad; Universal Control lets one keyboard and trackpad drive both.
Use your iPhone from the Mac screen
iPhone Mirroring puts the phone, its apps and its notifications in a window on the Mac — outside the EU.
Copy on the iPhone and paste on the Mac
Universal Clipboard moves text, images and files between your devices with the usual copy and paste.
Carry on with the Mac what you started on the iPhone
Handoff passes the page, the email or the note you have open from one device to the other, with nothing to save or send.