The same Fitbit you wear to count your steps may soon have an additional purpose: it could detect atrial fibrillation.
Atrial fibrillation is an irregular heartbeat which could cause a stroke if not properly treated. Yet, it often goes unnoticed by a person experiencing it.
According to this story in Time, Fitbit is developing software which would enable its existing trackers to detect afib, and thus allow time for appropriate action before it is too late.
This technology could be of great benefit to heart patients. Not only does the Fitbit encourage you to exercise, it might just save your life!