I completely agree with the comments above, the fitbit is not a medical device and it should not be liable to provide ” accurate measurements” if you think about the concept of properly monitoring heart beats, the fitbit is a type of device that ” one size fits all” so that alone should be a slight indication that it’s placement on the wrist will not accurately monitor HBPM. In addition, fitbit company should properly label that on packaging that it is not a suitable replacement for a a heart monitor, just in case another law suit pops up.

Chris