Resting heart beats

[Skean Dhude]

I understand the personal ones are not very good but are useful to keep track of changes. They may be wrong but they at least scale up consistently.

Plus a lot of people feel more relaxed doing their own than at the docs so there is a difference then plus how do you calibrate a heart monitor? Even if you were consistent in your application of the unit you just don't know how accurate it is.