Paying in stores
To pay with Face ID, just double-click the side button on your iPhone, glance at your screen, then hold it near the reader. If anything is obstructing your nose and mouth your Face ID will not work and you will be prompted to enter your passcode instead.
For Touch ID, hold your iPhone near the reader with your finger on Touch ID.
On Apple Watch, double-click the side button and hold Apple Watch up to the reader.
Paying in apps and on websites
To pay in apps and on websites in Safari on your iPhone and iPad, select Apple Pay at checkout and complete the payment using Face ID or Touch ID.
To pay on websites in Safari on your Mac, select Apple Pay and complete the payment using your iPhone or Apple Watch.
Or, if your Mac has Touch ID, select Apple Pay at checkout in Safari and complete the payment using Touch ID on the Touch Bar.
Paying on Transport for London (TfL)
With Express Transit mode enabled, you don’t need to use Face ID or Touch ID - and there’s no need to double-click the side button of your Apple Watch.
Simply touch the top of your iPhone, or the display of your Apple Watch, to the middle of the yellow card reader at the start and end of your journey.
You can touch your iPhone or Apple Watch to the reader even if it’s locked, in the middle of a game, video or message. You’ll feel a vibration and see Done and a checkmark on the display.
If you have an iPhone XS, iPhone XS Max or iPhone XR, Express Transit mode with power reserve is available for up to 5 hours when your iPhone needs to be charged. If you choose to power off your iPhone, this feature won’t be available.