There are many ways to use your iMac with your iPhone, iPad, iPod touch, or Apple Watch. You can transfer files, share and edit documents, unlock your iMac with your Apple Watch, turn your iPhone or iPad into an internet hotspot, answer calls or send texts from your iMac, and more.
Access your content across devices. With iCloud, you can securely store, edit, and share your documents, photos, and videos across devices to make sure you’re always up to date. To get started, see Use AirDrop on your Mac), and more. See the following sections for additional setup information.
For a list of system requirements for devices that support Continuity, see the Apple Support article