User level: Level 1 (4 points)In the health App, under AFib history, the chart shows Afib in terms of a percentage. My question is, a percentage of what? Mine shows 2% or less on all days since I started tracking and I don't know what that means exactly. Was AFib actually detected? Can it show what days of the week it's detected? What does the 2% mean?
Thanks for the help folks!
Posted on Nov 2, 2026 5:35 PM
User level: Level 1 (4 points)Nov 4, 2026 10:11 AM in response to APaycheck
After I posted, I did find a quick blurb about the system not being able to show "zero", show it shows 2% or less instead (in red of course). So 2% 0r less += Zero.
User level: Level 9 (74,110 points)Nov 4, 2026 8:05 AM in response to APaycheck
The AFib percentage in your Apple Health app represents the estimated percentage of time your heart showed signs of Atrial Fibrillation (AFib) during the hours you wore your Apple Watch over the previous week. This metric is commonly referred to by doctors as your "AFib burden".
User level: Level 1 (4 points)Nov 4, 2026 10:12 AM in response to WheelieNick
Thanks. Wish it had the ability to narrow it down to days so I can figure out a trigger.
Originally posted at discussions.apple.com/thread/256387871