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 ...

Several dozen health tracker app users complained on Reddit about their frustrations with the tech.

Fitbit’s Charge 6 is such a great little minimalist fitness tracker, you barely need to do anything to get started—just strap it on and let it work. But there are a few things you can do to ...