The Ultimate Guide on How to Get the Most out of Your Fitbit versa 4 Fitbit Versa 4. Features Heart Rate Monitoring Fitbit Versa 4’s heart rate monitoring is a vital feature to track your overall fitness and health. The device uses advanced technologies to continuously monitor your pulse throughout the day, and during exercise. This provides you with valuable insights about your cardiovascular health. With the Fitbit Versa 4, you can easily track your heart rate zones during workouts to ensure you are pushing yourself to the right intensity level for maximum benefits. This feature is useful for athletes