There is a new way for AFib to evaluate the rhythm of your heart

You may have heard the word “AFib” before. But do you know how it happens বা or why it is dangerous? Simply put, arrhythmia is when your heart is not beating normally — and atrial fibrillation or AFib is the most common type of arrhythmia. It occurs when the upper chambers of the heart vibrate irregularly and are out of sync with the lower chambers, which can increase the risk of blood clots, strokes and heart attacks. *

AFib can be difficult to diagnose. It can come and go, so it may not be when you see your doctor or have an ECG. There may be palpitations and shortness of breath, but some people have no symptoms at all. The good news, though, is that AFib is treatable. The sooner you identify it, the sooner you can do something.

This is where Fitbit’s irregular heart rhythm notification feature comes in. ** The feature has been verified in a large clinical study and reviewed and cleared by the US FDA. Not only can a healthcare provider diagnose AFib, but all of these new features can help identify if your heart rhythm is showing signs of this condition – so you can have a better conversation with your doctor about your heart health.

How it works

You can only test for irregular heartbeat symptoms by wearing your Fitbit tracker or smartwatch which can be AFib. When you are still or asleep, your instrument collects your heart rhythm data to check for irregularities in the beat to beat variation that may be a symptom of AFib.

Open the Fitbit app every day to sync your data from the night before so it can be analyzed.

After analysis, if multiple readings show signs of an irregular rhythm, you will receive a notification in the app. Set up notifications from the Heart Tile or Discover tab in the Fitbit app

You have received a notification now what?

The feature has been cleared and verified by the FDA in a clinical study, so if you receive a notice, we recommend discussing this information with your doctor or healthcare provider for further evaluation. Do not change your medication or hygiene before talking to them.

Irregular heart rhythm notification features may not detect heart attacks, blood clots, strokes, or other heart conditions. You should not change your medication without first talking to your doctor. The results may not be accurate for people taking medications or substances that affect heart rate or blood flow.

If you think you have a medical emergency, call emergency services. The feature is not intended for use by people under the age of 22 or with known atrial fibrillation.

On which device is it available?

Irregular heart rhythm notification Currently available in the United States. Find it on Fitbit Charge 5, Charge 4, Luxe, Sense, Versa 2, and Inspire 2.

To set it up, register in the Fitbit app’s evaluation section.

Register for the Irregular Heart Rhythm Notification Feature today.


Learn more: The Fitbit Irregular Heart Rhythm Notification feature does not analyze your data in real time and is not able to detect continuous AFib, especially during motion. This means it cannot detect all instances of AFib and you may not receive a notification even if you have AFib.

* For men and women 40 years of age and older, the risk of developing AFib is 1 in 4. Source: Lloyd-Jones DM, et al. “Lifelong risk for developing atrial fibrillation.” American Heart Association, 2004.

** Irregular Rhythm Notifications are only available in selected countries and with selected Fitbit products; Not intended for use by people under 22 years of age or with known atrial fibrillation. See fitbit.com/irregularrhythm for additional details.

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