With the new Always-On Retina display, you always see the time and your watch face. This watch keeps an eye on your heart. Quickly check your heart rate, and get notifications when it appears to be too high or too low. And tells you when things are getting a little loud. The new Noise app alerts you when decibels rise to levels that can impact your hearing. And lets you track your cycle with a tap. The new Cycle Tracking app makes it easy to log information about your menstrual cycle. This watch helps you crush your fitness goals. There are workouts for every way you exercise. And advanced metrics for every level of athlete. And motivates you to move, exercise and stand. The Activity rings track your progress and inspire you to sit less, move more and exercise every day. You can even compete with friends in challenges. And streams your favourite 50 million songs. Listen to the entire Apple Music library, not to mention podcasts and audiobooks. This watch has a great sense of direction. With a compass and altimeter, it's made for life's twists and turns, and ups and downs. It gets apps in a flash. The App Store is now on your wrist, so you can find and download the latest apps in seconds. And lets you go without your phone. With cellular, you can call from the park, text from the surf or stream music from the slopes. All with just your watch. And pay for stuff, fast. Pay for your morning coffee instantly and securely with Apple Pay. And talk the ear off Siri. Search a topic online, identify a song with Shazam or start a workout.