This narrow band offers 24/7 activity tracking, monitoring steps, active time, calories burned, distance walked and sleep time. It also has a built-in heart sensor, logging heart rate throughout the day, indicating overall fitness and how it is affected by different activities. Sports mode lets wearers alter and customise their workouts, tracking statistics over the long-term and providing trend information. The device can be paired with iOS and Android phones, with data synced via the TomTom Sports app.