Press and hold the Sleep/Wake button on the top of the phone until the Power Off slider appears on the screen (approximately 3 seconds). To turn off your phone, drag the on-screen slider toward ...

hold the side button and either one of the volume buttons on the left until the power-off slider appears on the screen. Swipe the slider and wait until your iPhone powers off. To turn your device ...

then swiping on the Power Off slider that appears. On an iPad without a Home button, hold the Lock button and either Volume button, then swipe the Power Off slider. 2. Plug your iPad into a ...