Shh! Secret Apple Watch controls are right here
(iMore iPhone)

There`s a lot you can do with your Apple Watch`s buttons, gestures, and taps Despite its size, your Apple Watch has a surprising amount of functionality -- all controlled by three unique inputs, including a side button, a Digital Crown, and Force Touch capabilities. Here`s what you can do with each! The Side Button The Digital Crown Button combos Multitouch The Side Button The only traditional button on Apple Watch, the side button powers and turns off your wearable device. You can also use it for the Dock and the device`s emergency features. Powering on and off You can turn your Apple Watch on and off using the side button. To power off, hold the side button until you see the menu. Slide to Power Off. To power on, hold the side button until you see the Apple logo. How to restart and reset your Apple Watch Press and hold to access Medical ID or SOS You can access your Medical ID or notify local authorities of an emergency by using the side button on your Apple Watch. ...