![Sensors | Free Full-Text | Validation of the Apple Watch for Heart Rate Variability Measurements during Relax and Mental Stress in Healthy Subjects Sensors | Free Full-Text | Validation of the Apple Watch for Heart Rate Variability Measurements during Relax and Mental Stress in Healthy Subjects](https://www.mdpi.com/sensors/sensors-18-02619/article_deploy/html/images/sensors-18-02619-g001.png)
Sensors | Free Full-Text | Validation of the Apple Watch for Heart Rate Variability Measurements during Relax and Mental Stress in Healthy Subjects
HealthFit on Twitter: "A new update of HealthFit, version 9.6 is ready on the App Store. This update focuses again on HRV (Heart Rate Variability). You can now visualize with a new
![What's your heart rate variability? I have no idea what HRV is or what it should be, so i'm just asking around what's your average HRV? My average is 30ms-50ms but it What's your heart rate variability? I have no idea what HRV is or what it should be, so i'm just asking around what's your average HRV? My average is 30ms-50ms but it](https://i.redd.it/2zontz1supu51.jpg)
What's your heart rate variability? I have no idea what HRV is or what it should be, so i'm just asking around what's your average HRV? My average is 30ms-50ms but it
![Apple Watch Heart Rate Variability Accuracy and Insights From 3.5 Years of Measurements : r/AppleWatchFitness Apple Watch Heart Rate Variability Accuracy and Insights From 3.5 Years of Measurements : r/AppleWatchFitness](https://external-preview.redd.it/FdoS0jJi4wrlilcAD3C49Y-w4YTKauyX5zZueArFbxU.jpg?auto=webp&s=c1747d6eef469f1cfc28f8bce2ea897c48ecd0da)