https://www.theverge.com/2020/9/14/21436090/fitbit-sense-ekg-heart-fda-clearance-apple-samsung-withings
https://www.t3.com/news/apple-watch-be-gone-fitbit-versa-now-has-an-extra-potentially-life-saving-feature
How Fitbits Are Being Used To Slow The Spread of Coronavirus Cases