Apple Watch is the most personal device we've ever created. We set out to make the best watch in the world - one that is precise. It's synchronized with the Universal Time Standard, and it's accurate within plus or minus fifty milliseconds. It's incredibly customizable, so you can find one that reflects your personal style and taste. Because you wear it, we've invented new and intimate ways to connect and communicate directly from your wrist. And it works seamlessly with iPhone! And it's also a comprehensive health and fitness device. When you turn the digital crown, it zooms in and out. When you have a list, you can scroll through the list. And you can do all of this without blocking the screen. And when you're within an app, like the Clock app as an example, you can press the digital crown, it returns to the home screen just as you would expect it to.