Heart Rate; what's more accurate, watch or web?

If you sync the watch, the value on both sides should be identical (in my case it indeed is). If you did not sync the data, or the sync was not completed, the watch will be more accurate (at least for the last 4h)

Not my experience, unfortunately. I sync every morning and had been taking my lowest reading from the web app which allows you to scan over the whole night's sleep. But I just recently discovered I can click the HR button on the watch and it will display the current and average HR and click again will display the low and high HR for the last 4 hours. But it's not the same as the web app display. And the web app seems very basic in terms of display. This morning my watch displayed my lowest HR at 50, but when I scan the web app and run the cursor over the whole night, nothing displays less than 52. If I only have a min or 2 at the lowest HR I normally don't count that, don't mean to be overly anal but I'm attempting an experiment linking recovery to N-RHR. I wish the had a display for HR while sleeping, doesn't seem like that would be an overly difficult feature. But perhaps it's best to just use one or the other, watch or web, at least that will be consistent. Thanks for your feedback, appreciate it.

7818163 said:

but when I scan the web app and run the cursor over the whole night, nothing displays less than 52.

That is just because you most likely scanned over the default graph without zooming it, hence the fine details are hidden / smoothed out by the scale. Select the night only, or even just one part of it with the mouse to zoom it, and then check the lowest points again. I bet you'll find the lowest value just all right. The "Resting" HR in the center of the HR page header is not the extreme minimum, but rather the average over the minimal HR during that day (the left value with bigger font being the weekly average). The lowest HR, as you correctly noteted, is not that important, hence not shown on this screen.

I hear ya. I do zoom each morning b/c the default am graph only displays approx 1/4 of the screen, all bunched up. It displays from midnight till when I wake which is normally 6-7 am, and it won't allow me to zoom further. But that spreads out the readings across the full graph/screen width. But still, not the number on my watch which is usually a beat or 2 lower. If I gently move the cursor across the graph it appears to be displaying in 2 mins segments. So between those segments perhaps there's a lower number that's not being displayed on the graph. I normally take my information from the watch and add it into a spreadsheet, don't find the app very useful for my purposes. The only thing I was using the app for was this N-RHR. So now if I take the lowest number from my watch I can eliminate using the app at all, bonus. It would be useful if they displayed HR over the whole sleep, pm thru am, right now need to look at 2 different days to see a few hrs before midnight and then am hrs. Oh well, can't have it all I guess. Thanks for your feedback, appreciate it. 

7818163 said:

I hear ya. I do zoom each morning b/c the default am graph only displays approx 1/4 of the screen, all bunched up. It displays from midnight till when I wake which is normally 6-7 am, and it won't allow me to zoom further.

Then you must be doing it in some strange way. I can zoom even up to the range of 4 minutes. See the attached screenshots - the first one is for the whole day, while the second one is just for the time some 20 minutes, and I can zoom it again until the limit of 4 minutes over the range.

Maybe it's my op system, MacBook Air, I can only zoom to mininum of 4 hrs, if I try to zoom more it doesn't change. Oh well. I'm good now. I will simply take reference from my watch ea morning, good enough. I use the cheapest Garmin watch, can't have it all.

Finallly, I checked again, and see you are right. In fact the repeated zooming only shifts the range, it does not re-zoom it, so what I believed to be 4 minutes, were the 4 hours you see too. My mistake. 

I'm getting same same. I wanted to discover if my N-RHR could relate to my recovery, and/or my performance next day. My N-RHR can go as low as 44-45 bpm range. But if I drink beer range is more like 55-65, depending on the number of beer. It seems my beer limit is 2, or I go over 50 bpm. I could test better if I extended the number of nights with no beer, but so far that test has proven unattainable because of being over served. I need to hide in a cave or get new friends. Life is an experiment.

Ha! good one ....