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Irregular Heart Rhythm

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Check for atrial fibrillation with Fitbit
Discover how Fitbit can help identify signs of atrial fibrillation (AFib) so you can have a better conversation with your doctor about your heart health.
Fitbit makes a difference
Easy to useGain insight into your heart health right from home.
Rooted in researchBoth features were validated in clinical studies for accurate results.
FDA clearedOur AFib technologies have been FDA cleared.
Doctor-readyGet results you can share with a healthcare professional.
Two ways to uncover AFib, at your fingertipsTwo ways to uncover AFib, at your fingertips
With the ECG app, you can take an AFib assessment on demand. Plus, use irregular heart rhythm notifications to look for signs of AFib while you’re still or sleeping.
What is AFib?What is AFib?

Atrial fibrillation is an irregular heart rhythm and occurs when the upper chambers beat out of sync with the lower chambers. This can increase risk of blood clots, stroke and heart attack. Adults over 40 have a 1 in 4 risk of developing AFib in their lifetime.

AFib is treatable, so the earlier you identify it, the sooner you can do something about it.

Why it's hard to diagnoseWhy it's hard to diagnose
With AFib, the heart may not always beat irregularly, making it hard to detect, even in a doctor’s office. Palpitations and shortness of breath can be symptoms of AFib, but some people don’t have any symptoms.
Where Fitbit comes inWhere Fitbit comes in

To check for signs of AFib, use the Fitbit ECG app to assess your heart rhythm on demand or have Fitbit analyze it while you’re still or sleeping.

Armed with this information, you can connect with your healthcare provider and have a more informed discussion.

Check on demand with the ECG app
An electrocardiogram (ECG or EKG) is a test that measures your heart’s electrical activity. Fitbit’s ECG app records those electrical signals and looks for signs of AFib. To take a heart rhythm assessment, set up the ECG feature in the Fitbit app.
Check on demand with the ECG app
An electrocardiogram (ECG or EKG) is a test that measures your heart’s electrical activity. Fitbit’s ECG app records those electrical signals and looks for signs of AFib. To take a heart rhythm assessment, set up the ECG feature in the Fitbit app.
Look for signs of AFib over time
With Irregular Heart Rhythm Notifications, Fitbit analyzes your heart rhythm while you’re still or sleeping and looks out for potential signs of AFib.
Look for signs of AFib over time
With Irregular Heart Rhythm Notifications, Fitbit analyzes your heart rhythm while you’re still or sleeping and looks out for potential signs of AFib.
How to get these features
Irregular heart rhythm notifications are available in the following countries:

American Samoa ᐧ Australia ᐧ Austria ᐧ Belgium ᐧ Canada ᐧ Chile ᐧ Czech Republic ᐧ France ᐧ Germany ᐧ Guam ᐧ Hong Kong ᐧ Iceland ᐧ India ᐧ Ireland ᐧ Italy ᐧ Liechtenstein ᐧ Luxembourg ᐧ Malta ᐧ Mauritius ᐧ Netherlands ᐧ New Zealand ᐧ Norway ᐧ Poland ᐧ Portugal ᐧ Puerto Rico ᐧ Romania ᐧ Singapore ᐧ South Africa ᐧ Spain ᐧ Sweden ᐧ Switzerland ᐧ Taiwan ᐧ United Kingdom ᐧ United States ᐧ U.S. Virgin Islands ᐧ Vietnam

This feature is compatible with Pixel Watch 3, Pixel Watch 2, Sense 2, Sense, Versa 4, Versa 3, Versa 2, Versa Lite, Charge 6, Charge 5, Charge 4, Charge 3, Luxe, Inspire 3 and Inspire 2.

To set up irregular heart rhythm notifications, enroll in the Assessment section of the Fitbit app.

The ECG app is available on Fitbit Sense 2, Fitbit Sense, Fitbit Charge 6 and Fitbit Charge 5 in the following countries:American Samoa ᐧ Australia ᐧ Austria ᐧ Belgium ᐧ Canada ᐧ Chile ᐧ Czech Republic ᐧ France ᐧ Germany ᐧ Guam ᐧ Hong Kong ᐧ India ᐧ Ireland ᐧ Italy ᐧ Luxembourg ᐧ Netherlands ᐧ New Zealand ᐧ Norway ᐧ Poland ᐧ Portugal ᐧ Puerto Rico ᐧ Romania ᐧ Singapore ᐧ South Africa ᐧ Spain ᐧ Sweden ᐧ Switzerland ᐧ Taiwan (excluding Fitbit Sense and Fitbit Charge 5) ᐧ United Kingdom ᐧ United States ᐧ U.S. Virgin Islands
The ECG app is available on Google Pixel Watch, Google Pixel Watch 2, and Google Pixel Watch 3 in the following countries:

Australia ᐧ Austria ᐧ Belgium ᐧ Canada ᐧ Czech Republic ᐧ France ᐧ Germany ᐧ India ᐧ Ireland ᐧ Italy ᐧ Netherlands ᐧ New Zealand ᐧ Norway ᐧ Poland ᐧ Portugal ᐧ Puerto Rico ᐧ Romania ᐧ Singapore ᐧ Spain ᐧ Sweden ᐧ Switzerland ᐧ Taiwan ᐧ United Kingdom ᐧ United States

To take a heart rhythm assessment with the Fitbit ECG app, enroll in the Assessment section of the Fitbit app. Find the ECG Instructions for Use and Physician’s Guide in your language here.

More to know:

The Fitbit ECG app is not intended for use by people under 22 years old.

The Fitbit irregular heart rhythm notifications feature is not continuously looking for AFib. This means it cannot identify all instances of AFib, and you may not get a notification even if you have AFib. Not intended for use by people under 22 years oldor with other known arrhythmias.

Neither of these features can detect heart attack, blood clots, stroke or other heart conditions. You should never change your medication without first speaking to your doctor. Results may not be accurate in people who take medication or substances that affect heart rate or blood flow. If you think you’re having a medical emergency, call emergency services.

If you're a clinician, click here for more information.

Irregular heart rhythm notifications are available in the following countries:

American Samoa ᐧ Australia ᐧ Austria ᐧ Belgium ᐧ Canada ᐧ Chile ᐧ Czech Republic ᐧ France ᐧ Germany ᐧ Guam ᐧ Hong Kong ᐧ Iceland ᐧ India ᐧ Ireland ᐧ Italy ᐧ Liechtenstein ᐧ Luxembourg ᐧ Malta ᐧ Mauritius ᐧ Netherlands ᐧ New Zealand ᐧ Norway ᐧ Poland ᐧ Portugal ᐧ Puerto Rico ᐧ Romania ᐧ Singapore ᐧ South Africa ᐧ Spain ᐧ Sweden ᐧ Switzerland ᐧ Taiwan ᐧ United Kingdom ᐧ United States ᐧ U.S. Virgin Islands ᐧ Vietnam

This feature is compatible with Pixel Watch 3, Pixel Watch 2, Sense 2, Sense, Versa 4, Versa 3, Versa 2, Versa Lite, Charge 6, Charge 5, Charge 4, Charge 3, Luxe, Inspire 3 and Inspire 2.

To set up irregular heart rhythm notifications, enroll in the Assessment section of the Fitbit app.

The ECG app is available on Fitbit Sense 2, Fitbit Sense, Fitbit Charge 6 and Fitbit Charge 5 in the following countries:American Samoa ᐧ Australia ᐧ Austria ᐧ Belgium ᐧ Canada ᐧ Chile ᐧ Czech Republic ᐧ France ᐧ Germany ᐧ Guam ᐧ Hong Kong ᐧ India ᐧ Ireland ᐧ Italy ᐧ Luxembourg ᐧ Netherlands ᐧ New Zealand ᐧ Norway ᐧ Poland ᐧ Portugal ᐧ Puerto Rico ᐧ Romania ᐧ Singapore ᐧ South Africa ᐧ Spain ᐧ Sweden ᐧ Switzerland ᐧ Taiwan (excluding Fitbit Sense and Fitbit Charge 5) ᐧ United Kingdom ᐧ United States ᐧ U.S. Virgin Islands
The ECG app is available on Google Pixel Watch, Google Pixel Watch 2, and Google Pixel Watch 3 in the following countries:

Australia ᐧ Austria ᐧ Belgium ᐧ Canada ᐧ Czech Republic ᐧ France ᐧ Germany ᐧ India ᐧ Ireland ᐧ Italy ᐧ Netherlands ᐧ New Zealand ᐧ Norway ᐧ Poland ᐧ Portugal ᐧ Puerto Rico ᐧ Romania ᐧ Singapore ᐧ Spain ᐧ Sweden ᐧ Switzerland ᐧ Taiwan ᐧ United Kingdom ᐧ United States

To take a heart rhythm assessment with the Fitbit ECG app, enroll in the Assessment section of the Fitbit app. Find the ECG Instructions for Use and Physician’s Guide in your language here.

More to know:

The Fitbit ECG app is not intended for use by people under 22 years old.

The Fitbit irregular heart rhythm notifications feature is not continuously looking for AFib. This means it cannot identify all instances of AFib, and you may not get a notification even if you have AFib. Not intended for use by people under 22 years oldor with other known arrhythmias.

Neither of these features can detect heart attack, blood clots, stroke or other heart conditions. You should never change your medication without first speaking to your doctor. Results may not be accurate in people who take medication or substances that affect heart rate or blood flow. If you think you’re having a medical emergency, call emergency services.

If you're a clinician, click here for more information.

1
ECG study results provided in the Instructions for Use manual. Irregular heart rhythm notifications study here.
2
Lifetime risk for development of AFib is 1 in 4 for men and women 40 years of age or older. Source: Lloyd-Jones DM, et al. “Lifetime Risk for Development of Atrial Fibrillation.” American Heart Association, 2004.
3
Not intended for use by people under 22 years old.
4
Not intended for use by people under 22 years old with known atrial fibrillation or other known arrhythmias.