Fitbit receives FDA clearance for passive heart rhythm monitoring to detect signs of atrial fibrillation (AFib) and will roll out the feature in the US soon (Kris Holt/Engadget)

Kris Holt / Engadget:Fitbit receives FDA clearance for passive heart rhythm monitoring to detect signs of atrial fibrillation (AFib) and will roll out the feature in the US soon  —  The Food and Drug Administration has given Fitbit the green light to monitor users' heart rhythms in the background.

Fitbit receives FDA clearance for passive heart rhythm monitoring to detect signs of atrial fibrillation (AFib) and will roll out the feature in the US soon (Kris Holt/Engadget)

Kris Holt / Engadget:
Fitbit receives FDA clearance for passive heart rhythm monitoring to detect signs of atrial fibrillation (AFib) and will roll out the feature in the US soon  —  The Food and Drug Administration has given Fitbit the green light to monitor users' heart rhythms in the background.