Charge 2 Charts Wrong and HR calculations funky

[MaxMagness82]

I think there was a recent update but the charts are not correct. The recorded heart rates don’t match up with the y-axis heart rates. Also my resting heart rate is apparently 70, when the highest it ever was when I was bed-written with flu was 68. I’m confused because the calculations seem a bit off. When I compared today’s resting hr to my resting hr in the past when it was 65-67 they seem pretty close but for some reason the new calculation has 70. I’m going to try to reset my Fitbit and uninstall/reinstall the Fitbit app when I get home from work. The first two pictures compare todays hr to a 65 resting hr in the past. Todays does seem to be a bit higher but not 70 for sure. Also the final three pictures show that the charts are not correct.

[JohnnyRow]

You are bringing up so many issues, it is hard for me to understand all of them.

1.  "The recorded heart rates don’t match up with the y-axis heart rates."

Is this what the last 3 charts are supposed to show?  The displayed numbers seem to match up with the locations on the charts.

2. Resting heart rate - it is not something you can read directly off the graph; i.e. Fitbit's definition of RHR is not the lowest heart rate of the day.  Fitbit does not reveal exactly how it is calculated.  It is common to see heart rates lower than Fitbit's RHR.  But it has the same use, to look at long-term trends to see fitness changes, and short-term trends perhaps to tell when over-exercising, stressed, or getting sick.  From the general viewpoint of RHR, it makes sense it would rise when you get the flu, regardless of what numbers you read.

3.  Did I miss anything else in your question?

[MaxMagness82]

1. If you look at the last three pictures you can clearly see my lowest recorded hr on the zig-zag line is 58. On the y-axis (the bar with the hr numbers on the left that have horizontal lines that go across) the recorded hr of 58 does not match up with the 58 on the y-axis. 

2. I do not have flu at this time. What I'm saying is that since the update my hr has skyrocketed. I do have a sinus infection and I'm stressed. All I'm saying is that my resting hr does not seem to be calculated correctly since the recent update. When i had the flu my resting hr was 68, my lowest hr that day was 63. Today my resting hr is 70, but my lowest hr was 58. The calculation do not seem correct. My hr was much higher when I was sick with the flu, but today the resting hr is higher. It does not make sense to me. 

[Ninjafrog]

I found your post when searching my Alta HR issues. I’m experiencing the same exact thing. The y-axis data points are not represented correctly. For example, the data point is 58 but on the graph, it is close to the 68 marker. I escalated this to FitBit support and they are still looking into it (been about 4-5 weeks now).  The other thing I noticed is a distinct difference in RHR, starting at the beginning of June. Prior to June 1st, my RHR ranged from 62-65 consistently. After June first, my RHR now ranges from 65-68 consistently. The difference happened quickly, not gradually. When I look at my heart rate data over the course of a day, it is still consistent with what should be a lower RHR. It makes me wonder if Fitbit updated their RHR algorithm in early June or it is tied together with issues going on with the graph and the RHR calculations are getting messed up.