Sleep/Wake Button

When you’re not using iPhone but you still want to receive calls and text messages, you can lock it.

When iPhone is locked, nothing happens if you touch the screen. You can still listen to music and adjust the volume, and use the center button on your iPhone headset (or the equivalent button on your Bluetooth headset) to play or pause a song, or answer or end a call.

By default, if you don’t touch the screen for a minute, iPhone locks automatically.

The upper portion of iPhone with a close-up of the Sleep/Wake button.

Lock iPhone: 

Press the Sleep/Wake button.

Unlock iPhone: 

Press the Home Home button icon button or the Sleep/Wake button, then drag the slider.

Turn iPhone completely off: 

Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then drag the slider. When iPhone is off, incoming calls go straight to voicemail.

Turn iPhone on: 

Press and hold the Sleep/Wake button until the Apple logo appears.

For information about changing how long before iPhone locks, see Auto-Lock. For information about setting iPhone to require a passcode to unlock it, see Passcode Lock.