Can Wearable Devices Spot Early Symptoms of COVID?

As wearable devices such as fitness wristbands and watches track signs such as body temperature, could they be used to help detect the early signs of COVID-19 infection and thereby help public health responses?

Testing

There are now many 'wearables' (health and fitness-related devices) on the market such as Fitbits (and other fitness-tracking wristbands), Apple and Garmin Watches, and even ‘smart' items of clothing. The idea that some researchers have been testing is that wearable devices...