The Body Glove Waterproof Activity Tracker has a water-proof construction that enables you to use it during swimming or any watersport activity. This tracker is made of lightweight, durable silicone that makes it comfortable to wear. Its sedentary alerts will remind you to be active regularly, keeping you motivated. Multifunctional, this activity tracker monitors heart rate, steps, sleeping patterns, and calories burned. With a built-in anti-loss alert, you will be able to pinpoint your tracker within 30ft from your home.