Issue with health feature forces Fitbit to recall and replace some Sense smartwatches

Smartwatches are getting smarter, especially when it comes to keeping track of your health. These days connected timepieces can alert you when your heart rate is too fast or too slow, let you know if your blood isn’t pumping enough oxygen throughout your body, and can track the rhythm of your heart to make sure that you don’t have a condition known as AFib (Atrial fibrillation). The 2.7 million Americans suffering with AFib have a “quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure and other heart-related complications.”
Fitbit, …
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