How to turn off a Fitbit Charge HR to conserve battery, or quickly restart it for troubleshooting

To turn off a Fitbit Charge HR, you'll need to plug it in and hold down its side button. You can also restart the device to ...

These are all of the Fitbit models that can track your heart rate

The Fitbit Alta does not track heart rate, but many other Fitbit models do. Here are all the Fitbit trackers that have 24/7 ...