People on the Tube using Apple Pay need to realise that you can do the Touch ID authorisation before reaching the ticket gates. The transaction will stay autho

People on the Tube using Apple Pay need to realise that you can do the Touch ID authorisation before reaching the ticket gates. The transaction will stay authorised for a couple of minutes, at least, and then the gates will open nearly instantly when you put your phone near the sensor. This isn't an issue for using Apple Pay via the Apple Watch, since that device skips the Touch ID requirement (instead, it will de-authorise if you take it off your wrist).