News > Smartwatches can detect Covid-19 days before symptoms appear

Smartwatches can detect Covid-19 days before symptoms appear

Experts say that the Smart Watch can detect subtle changes in an individual’s heartbeat, which can signal that an individual has the coronavirus, up to seven days before they feel sick or infection is detected through testing. 

Specifically, the study analyzed a metric called heart rate variability — the variation in time between each heartbeat which is also a measure of how well a person’s immune system is working.