How can I connect my iPhone to my Mac?

On iPhone, go to Settings > tap name > iCloud > sign in. On Mac, go to Apple menu > System Preferences > iCloud > sign in. To use Continuity, turn on Handoff on both devices. On older devices: Load iTunes on both iPhone and Mac and sync via cable or Wi-Fi.

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Why isn’t my iPhone syncing with my Mac?

Make sure that the date and time settings on your iPhone, iPad, iPod touch, Mac, or PC are correct. Make sure that you’re signed in to iCloud with the same Apple ID on all of your devices. Then, check that you turned on Contacts, Calendars, and Reminders* in your iCloud settings. Check your Internet connection.