Tap the Today tab and select your profile photo. Tap the image for the device you want to remove. Tap the garbage bin symbol. Follow the on-screen directions to delete the gadget from your account.

To replace your tracker in the Fitbit app, follow these steps: Switch on your device. Open the Fitbit app from your Home screen or app drawer. Select the menu button in the upper left corner of the screen. Tap Devices to go there. Select Remove at the top right of the screen. Finally, tap Replace?

Open the Fitbit app and go to the Accounts section at the top right corner of the screen. Under “Set up a New Device,” choose your tracker and follow the on-screen instructions. When the app asks you to replace your existing tracker, do so and carry on with the procedure.

You requested it, and here it is: you may link as many Fitbit trackers as you want to the same account. Does this mean that Fitbit users can use one tracker for daily wear (the One) and another for exercise?

After connecting the Fitbit to its power source, press down its single button. Unplug the USB cable from its port after two seconds, still pressing the button. Count for eight seconds before letting go of the button for one second, then pushing it again.