"The Lifetrak Zoom HRV is not just another fitness tracker. It is a "wearable body computer", according to its maker.
It gives you heart-rate variability (HRV) with a simple push of a button. HRV is the variation in the time interval between heartbeats and provides a better indication of your physical and mental health. Lower HRV has been associated with congestive heart failure, depression and other diseases."
Check the full article here:
https://www.straitstimes.com/tech/wearables/lifetrak-zoom-hrv-is-a-computer-you-can-wear
