Fitbit is rolling out a major firmware replace that’ll enable 9 of its most up-to-date health trackers to detect indicators of atrial fibrillation with out you having to open an app.Atrial fibrillation (also referred to as A-fib) is an irregular or unusually quick heart rhythm that may be a signal of a potential health situation. Fitness trackers and smartwatches cannot diagnose a situation, however may give you a warning and produce a report that you would be able to share with a health skilled.As 9to5Google stories, the corporate gained approval for passive A-fib monitoring from the US Food and Drug Administration (FDA) final month, and it is now rolling out to gadgets all through the US. Fitbit homeowners elsewhere must wait a little longer; the corporate will want the inexperienced mild from the authorities in every nation earlier than it will possibly launch A-Fib detection there, and timescales will fluctuate.The new feature is coming to nearly all of the gadgets in our roundup of the most effective Fitbits and lots of older ones too. The Fitbit Luxe, Charge 5, Charge 4, Charge 3, Versa 3, Versa 2, Versa Lite, and Inspire 2 will all obtain it over the approaching weeks.What to anticipateFitbit actually is not the one firm whose gadgets can detect indicators of atrial fibrillation. Apple debuted its electrocardiogram (ECG) app again in 2018, and corporations together with Withings, Fitbit, Samsung, and Coros have all adopted go well with.What makes the new Fitbit replace totally different is its potential to detect indicators of a potential drawback passively. Most smartwatches and health trackers can solely decide up a potential drawback when you sit down and provoke a scan your self, which you will not do frequently when you really feel properly.Your Fitbit will not monitor for A-fib constantly. Instead, it’s going to carry out a verify at common factors all through the day, relying on if you’re resting or asleep.The new device will likely be known as Irregular Heart Rhythm Notifications, so maintain an eye fixed out for it arriving in your watch quickly.