You may simply delete a contact's information
if you no longer want to maintain it. This can also help clear up some space on your iPhone's memory. Here's how you do it:
- To open the Phone app, tap it from the Home screen.
- Contacts should be tapped.
- Select the contact you want to remove by tapping on it.
- Select Edit.
- Scroll all the way to the bottom of the page.
- To confirm the operation, tap Delete Contact again.
The specified contact has been deleted from the list.