At Welltory, we strongly believe that Heart Rate Variability (HRV) is a deeply personal measurement, influenced by a multitude of individual factors like age, fitness level, and overall health. Consequently, we don’t assign a standard “good” or “bad” HRV range in milliseconds (ms). In our view, the power of HRV lies in monitoring your personal trends over time. This way, you can become more aware of how different aspects of your lifestyle—such as stress, sleep, and exercise—affect your HRV. We find this to be a more dynamic and accurate way of understanding your health and fitness compared to relying on fixed HRV numbers.