Pre-symptomatic detection of COVID-19 from smartwatch data

The use of wearable devices has ample potential to mitigate the coronavirus disease 2019 (COVID-19) pandemic. To date, the pandemic has infected tens of millions of individuals and caused over one million deaths worldwide. There is a substantial need for improved infection tracking, and population-scale technology solutions provide a promising avenue to identify cases in real time for infection detection and tracking... More here.

Interesting idea, but surely the goal is true detection through proper testing rather than indicators. I guess they could help in some way though.