The Fitbit app is free to use, but Fitbit Premium adds additional features to the tracker. You can pay for Fitbit Premium on a rolling monthly basis or per year. Fitbit devices don't need a constant ...

The Google Fitbit Charge 6 also comes with a free app that provides more thorough data about your physical health and habits.

You don’t have to pay monthly, but Fitbit Premium does unlock more data and resources The Fitbit app is free to use, but Fitbit Premium adds additional features to the tracker. You can pay for Fitbit ...