Fitbit heart rate monitor accuracy – Can we trust it?(Updated May 2019)
Have you seen the review numbers for Fitbit devices on Amazon? Well, just by these numbers we can tell that Fitbit is the most popular wristwatch fitness tracker! But how about Fitbit heart rate monitor accuracy? A year ago last May, Fitbit faced a class-action lawsuit which aimed at their 3 models: Fitbit Blaze, Fitbit