Tell us all about your Fitbit Charge 4

Fitbit’s most recent release, the Charge 4, impressed reviewer Valentina Palladino by echoing many of the features that made the company’s Surge model so successful: on-wrist apps, heart rate monitoring and onboard GPS.  The Charge 4 also includes Fi...

source https://www.engadget.com/if-you-own-this-smart-fitness-wearable-wed-like-to-hear-from-you-150015338.html