How to Delete iPhone Favorites
To delete a contact from the Favorites screen in the Phone app: This only deletes the Favorite. It does not delete the contact from your address book. The contact information isn’t lost.
How to Rearrange iPhone Favorites
To change the order of favorites:
How to Select Contacts Using the 3D Touch Menu
On iPhone 6 series and newer iPhones, the 3D Touch screen offers one other way to reach your Favorites. Hard press the Phone app icon to display a shortcut menu. This menu offers easy access to three favorite contacts (or on larger screens like the iPhone X, four contacts). The 3D Touch shortcut for the Phone app displays your top three (or four) favorite contacts. In iOS 11, iOS 12, and iOS 13 the contacts are displayed in the same order as you see them on the Favorites screen. In iOS 10, the contact in the first position on your Favorites screen shows up in the lower-right corner of the shortcut menu. This way it’s easy to tap your most commonly used contact. To change which contacts show in the shortcut or to change their order, rearrange your contacts on the Favorites list.