Vertical axis - graph scale - usability

[SunsetRunner]

I find the heart rate graph quite unusable. In my case it has 3 vertical divisions, of 63, 72, and 80. When I enlarge the graph, that becomes 60, 68 and 76.

It is hard to interpolate these and there are too few.

Can the app please use ranges that make this easy? So multiples of 5 or 10, or if it is too dense multiples of 20 or 40 / 50?

By the way the same applies to the heart rate graph in sleep analysis. 82 / 75 / 68 / 60 / 53 is not helpful as vertical scale. These can easily be multiples of 5 or 10.

And when they are simple multiples, minor scale lines can be added. It is trivial for the user to see that the line between 60 and 70 is the line of 65.

[charleskn]

It would be nice if this were fixed in Fitbit, however, if you need more detail on the HR graph, you might try the Cardiogram app as a work-around.