Fitbit Inc Charge 3

Get a deeper understanding of your body, your health and your progress with Fitbit charge 3. This swim proof advanced fitness tracker does more than count steps it tracks 24/7 heart rate, calorie burn, 15+ exercises, goal progress, sleep and more. Every day, you will find valuable insights about your health that will empower you to take action, improve yourself and reach your goals. Compatibility: Synchronizes with iOS 10 and later, android 5.0 and later and windows 10 devices. Windows coming soon. Small wristband fits a wrist between 5.5 7.1 inches. Large wristband fits a wrist between 7.1 8.7 inches.