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Heartbeat rates

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‎03-25-2025 11:31

‎03-25-2025 11:31

Can someone please explain how my Fitbit can tell me I have signs of AF & give readings overnight which vary from say 38 to 184 on 14 occasions overnight but when I see the graph of my heartbeat for the day it shows no such variation. Am I missing something please

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3 REPLIES 3

‎03-25-2025 14:03

‎03-25-2025 14:03

Certainly no expert here, but I just googled AFib only at night, and it does seem quite possible you are having AFib episodes only at night, perhaps triggered by sleep apnea.  I suggest you talk to your doctor about it.

Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.

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‎04-01-2025 11:52

In response to JohnnyRow

‎04-01-2025 11:52

Hello

Yes I know I only have episodes at night & am under dr for them. My question was how in two separate places on Fitbit app does it show different results.

Regards
Angela
Sent from my iPhone
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‎04-01-2025 12:48

In response to AW67

‎04-01-2025 12:48

I see.  I was thinking when you said graph for the day, I was thinking of day vs. night, but now I understand.  Only explanation I can think of is that to show full 24 hrs on pixel width of graph of phone graph, some subsampling is probably required. I have no idea how long AFib episodes would last, if perhaps they might be short enough to be missed by the subsampling.  Just a guess.

Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.

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