How to turn off iphone?

To turn off an iPhone, press and hold the Side button and either Volume button simultaneously, then drag the slide to power off slider to the right.Step-by-Step Procedure to Power Off Any iPhone Model1.iPhones with Face ID (iPhone X, 11, 12, 13, 14, 15, 16 & Later):Method 1.Press and hold the Side button and either the Volume Up or Volume Down button at the same time until the sliders appear, then drag slide to power off.2.iPhones with Home Button (iPhone SE, 8, 7, or Earlier):Method 2.Press and hold the Side button (or Top button on older models) until the power off slider appears, then drag slide to power off.3.Turn Off via iOS Settings (No Buttons Needed):Method 3.Open Settings, tap General, scroll to the very bottom, tap Shut Down, and drag the slide to power off slider.Comparison of iPhone Shutdown MethodsShutdown MethodHardware RequirementsBest Used ForSide + Volume ComboWorking Side & Volume buttonsDaily standard shutdown on modern iPhonesSingle Side/Top ButtonWorking Power buttonLegacy models with physical Home buttonsiOS Settings ShutdownScreen access onlyBroken or stuck physical side buttonsForce RestartVolume Up, Volume Down, hold SideFrozen or unresponsive iPhone screensHow to Turn iPhone Back OnTo turn your device back on after shutting down, press and hold the Side button (or Top button) until the Apple logo appears on screen. Alternatively, connecting your powered-off iPhone to a Lightning or USB-C charger will automatically power it on.