Читать книгу Apple Watch For Dummies - Marc Saltzman - Страница 51

A custom heart-rate sensor included with Apple Watch helps you in two ways.

 Gauging your exercise intensity and tracking overall calorie burn: (This data is an estimation based on info you input one time, such as your height, weight, gender, and age.) Apple Watch listens to your heartbeats per minute and shows you data on the screen — if and when you call for it.

 Tracking your heart rate throughout the day: Apple Watch can alert you if it detects unusually high or low heart rates — and yes, you can set the parameters if you want, even if you don’t feel symptoms. Behind the watch are multiple sensors that measure your pulse through your skin. Going beyond fitness are fun applications, such as the one that lets you share your heartbeat with someone — felt on their Apple Watch — to show you’re thinking about them. See Chapter 5 for how to share this information to your heart’s content.