As with all things you wear, how a watch looks is as important as what it does. So company created lots of different models to choose from. A wide range of interchangeable bands. And customizable watch faces you can change anytime you like.

Start with a case made from strong yet lightweight anodized aluminum. Or go with elegantly durable stainless steel. Both come in two different sizes and a variety of finishes. And since every model is paired with its own beautifully engineered band, you have many unique combinations to choose from.

Your heart rate is one of the most important indicators of your cardiovascular health. The custom sensor inside Watch measures your heart rate throughout the day when you’re stationary. You can see these background heart rate data points in the Health app on your cellphone, where you can monitor them over time.