Atrial fibrillation
The most common heart rhythm problem. How to reduce AFib, how it is treated, and what to expect from an ablation.
Guides
Lowering your AFib risk
The habits and conditions that drive AFib, and which to fix first.
How AFib is treated
Stroke protection, medicines, cardioversion, ablation, and surgery.
Getting ready for your ablation
A checklist for the weeks before, the day itself, and what is normal while you heal.
Set up your Apple Watch to check for AFib
Turn on the right heart features, and the settings that quietly turn them off.
Set up your Fitbit or Pixel Watch to check for AFib
Turn on irregular rhythm alerts, the ECG app, and heart rate alerts in the Google Health app.
Send your Kardia EKG to your doctor
Download the PDF, share it, or make a 31 day report.
My watch says I have AFib
What an alert means, how to record a useful ECG, and what happens next.
Irregular rhythm notifications, explained
How the background AFib check works, and how it differs from the ECG app and AFib History.
Buyer's guides
Best smartwatch for catching AFib
Which watches have FDA cleared ECG and AFib alerts, and which fits your phone.
Buyer's guide · Reviewed October 2026Best personal ECG without a smartwatch
Pocket ECG devices for recording your rhythm when you feel symptoms.
Buyer's guide · Reviewed October 2026Best wearable without a screen
Seven screenless bands, and the only two with an FDA cleared heart feature.
Buyer's guide · Reviewed October 2026