Tech and Science

AFib History Feature: Apple Watch’s AFib History feature is now available in India: How to use and other details – Times of India


Apple Watch is quite an efficient device when it comes to track of cardio health. Users can get an ECG on Apple Watch, keep track of cardio fitness and Atrial fibrillation (Afib) as well. The AFib history feature is now available in India on Apple Watch Series 4 and later for users on watchOS 9.
What is the AFib history feature?
Atrial fibrillation (AFib) is a type of irregular heart rhythm where the upper chambers of the heart beat out of sync with the lower chambers. Symptoms of AFib may include rapid heartbeat, palpitations, fatigue, or shortness of breath. It is a chronic condition but the amount of time for arrhythmia can change. For instance, regular exercise, healthy diet, weight can reduce the time your heart is in AFib.
As the name suggests, AFib history can keep track of the amount if time a user’s heart is in AFib. AFib History gives users a weekly estimate of the amount of time their heart shows signs of AFib, also known as AFib burden. Users can track this long-term and share this information with their doctors for further examination or advice. What AFib history also does is that it helps users manage factors such as exercise minutes, weight, alcohol consumption, and sleep. All these factors can impact the percentage of a user’s heart is in AFib. Users can also tap each life factor, then tap Log to manually log the details.

How to set up AFib history

Here are the steps to follow to set up AFib history

  • On iPhone, open the Health app.
  • Tap Browse, then tap Heart.
  • Tap AFib history.
  • Tap Set Up, then tap Get Started.
  • Enter Date of Birth.
  • Select Yes to indicate that you have been diagnosed with AFib by a doctor, then tap Continue.
  • Tap Continue to learn more about AFib History, the results, and life factors.
  • Tap Done.

How to view AFib history estimate?

Every Monday users receive weekly alerts on Apple Watch with the estimated percentage of time their heart showed signs of AFib from the previous week.
Users can also view their history in greater detail in the Health app.

  • On iPhone, open the Health app.
  • Tap Browse, then tap Heart.
  • Tap AFib History. If users have AFib History saved to Favorites, they can also access it from the Summary tab.

AFib History estimate appears as a percentage. A lower percentage means your heart was in AFib less often, while a higher percentage means more often. AFib History will never show as 0%. Instead, it will show as “2% or less.”

Things to keep in mind

  • You must have a physician’s diagnosis of AFib.
  • You must wear your Apple Watch at least 12 hours a day for 5 days a week to consistently receive estimates.
  • Heart Rate and Wrist Detection must be enabled on your Apple Watch.
  • AFib History is not intended for use by people under 22 years old.


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