Apple Watch and Heart Rate Variability (HRV): a complicated relationship

3/27/2023

The Apple Watch is the best-selling wearable sensor out there. It packs great technology but falls short when it comes to heart rate variability (HRV) analysis. As a result, it is of limited practical utility in this context, unless we take care of a few important aspects (despite what some apps claim).

In this blog, I will discuss the main limitations and show you how you can make better use of the Watch data for your own analysis of physiological stress in response to training and lifestyle stressors.

Full article, here.