Resting Heart Rate Change

[pk1976]

Hi all

i know that fitbit's so-called resting heart rate is actually some proprietary algorithm doing some sort of complicated average across periods of no movement awake and asleep through the day.

it seem though that this has just been updated - yesterday i noticed that my values for the last 4 days had just been revised up 1bpm (further away from a true RHR value).

what i want to know is what the change was - RHR tracking is only useful if you can see trends so when they change things underneath you it is important to understand what has changed. my rhr values are normally very consistent (i would say too much so to be considered true) so a step up in the graph makes me take notice.

ideally fitbit would actually explain at a reasonable level what these values are so we can understand what they mean. 

[USAF-Larry]

I haven't noticed any changes in the display of my RHR.  Mine flucuates between 52 and 56 on a regular basis, and if I look at the history of it over the past few months it has been consistently in that range. So, I am not sure that Fitbit changed anything in either their calculation of it, or the display of it.  But then, I know what makes mine go up or down, and I am not usually surprised when it goes up a few points.  One beat per minute change is probably not a cause for concern, though.

[littleanne]

I have noticed recently that Fitbit seems to change the values of my RHR taken days before.

Friday and Saturday my RHR recorded at 70, Sunday at 71.

On syncing this morning "Monday", Fitbit has seen fit to change the last 3 days. Sunday to 75.

In general it is recording higher in last few weeks, but how can it change previously recorded and synced heartrate days afterwards.

Accuracy seems to be deterioratng.