The steps are the same for all iPhone 15 models.

Drag theSlide to Power Offoption to the right.

When youre ready to turn your iPhone back on, press and hold theSidebutton.

The volume (left) buttons and side button on an iPhone 15

This method is also considered a soft restart.

At the bottom, chooseShut Down.

To turn your iPhone back on, press and hold theSidebutton on the right.

The Power Off slider on an iPhone 15

Unable to turn your gear back on?

Look at ways tofix an iPhone that wont turn on.

This is called a force restart, force reset, or hard reset.

The iPhone Settings app with General, Shut Down, and power switch highlighted.

Press and release theVolume Upbutton on the left.

Press and releaseVolume Downbutton on the left.

Hold theSidebutton on the right.

When you see the Apple logo appear, release theSidebutton.