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Resting HR on app is higher than actual resting HR

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‎07-26-2021 14:07

‎07-26-2021 14:07

Has anyone else found that the "resting HR" that shows on the app is higher than your lowest heart rate that you see throughout the day?  As an example, yesterday's resting HR on my app says 69, but at different points during the day I saw my heart rate well below that number, in the 62-64 range.  This seems to be happening a lot for me, where I'll make a note of my heart rate being a certain number but the app shows my heart rate being well above that.  Looking at the past month, it tells me the lowest has been 63 but I have seen it as low as 56 at one point in the month (I know this because I even took a screenshot of it).  I'm starting to wonder if it's even accurate enough to bother monitoring it.

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‎07-26-2021 15:39

‎07-26-2021 15:39

That is common and not unexpected.  Fitbit does not reveal exactly how it determines RHR, but it does not conform a common definition of the lowest heart rate you see in your day, which some people include night, others not.

All Fitbit officially says is "Resting heart rate is the number of times your heart beats per minute when you’re still and well-rested."

But it still serves the same purpose: looking at how your RHR changes over time as an indicator or how your fitness is changing, and possibly as an indicator of when you are getting sick or need more rest.

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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‎07-29-2021 09:45

In response to JohnnyRow

‎07-29-2021 09:45

Sure, I get that watching for trends is useful.  But still, it seems like I'm not getting a very accurate picture.  Today the app says my RHR is 63, but while watching the morning news my hear rate got as low as 51.  I could understand a small difference, but that's significant!  It almost feels like Fitbit is giving a falsely high RHR on purpose, in order to get you to buy more of their products to try and lower it.  I think next time I'll buy a Garmin or Suunto that I feel is more accurate.

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