1. Press and hold the button on your watch for a few seconds (then, if you have a Garmin, select the payment function).
2. Enter your four-digit personal security code (if required).
3. Select the credit card you want to use and then hold your watch about 5 cm above the payment terminal.
4. Once payment has been made, the watch vibrates and a tick appears on the screen.
Are payments with Fitbit Pay and Garmin Pay safe?