If you send your iPhone in for service, or if you're selling or giving away your iPhone, you should reset it to its factory settings to protect your data and privacy. This article explains what you need to know about factory resetting an iPhone 13.

To factory reset an iPhone 13 running iOS 15 or later, follow these steps:

Start by backing up your iPhone. As we’ll see, this is a step in the factory reset process, so it doesn’t hurt to be extra safe. After all, this is your priceless data. Learn how to back up to iPhone.

Scroll down and tap 'Transfer iPhone' or 'Reset iPhone'.