To get your Fitbit Charge 5 up and running, you’ll need a smartphone or tablet. Make sure it runs on iOS 15 or newer, or Android 9 or newer. You can’t set it up using a computer. Also, be sure to ...

Getting started with the Fitbit Charge 3 or Charge 4 may be straightforward, but there are plenty of features that lie within the company’s latest fitness tracker that are waiting to be ...

Set a Custom Heart Rate Zone During Workouts Fitbit’s activity trackers capable of measuring your heart rate, such as the Charge HR and Surge, come with preset heart rate zones.