Mobile DukeCard on Apple Device: Understanding Express Mode

By default, your DukeCard is set to Express Mode which allows you to use your DukeCard in Wallet without requiring Touch ID, Face ID, or passcode on your iPhone. If you want to authenticate transactions with Touch ID, Face ID, or passcode, you can turn off Express Mode. Note that this disables Express Mode for all transactions. Turning off Express Mode on the iPhone XS, iPhone XS Max, and iPhone XR will also disable Express Card power reserve.

By default, your DukeCard will be set to Express Mode which allows you to use your DukeCard without requiring Touch ID, Face ID or passcode.  

To disable Express Mode on the iPhone, open the Wallet app, tap (…) and toggle off Express Mode. When Express Mode is off, you'll need to use Face ID, Touch ID, or a passcode at the reader.

To disable Express Mode on Apple Watch, open the Watch app on the iPhone, tap Wallet & Apple Pay, tap DukeCard and toggle off Express Mode. To use, double-click the side button and swipe to find your DukeCard and hold the display of your Apple Watch with a few centimeters of the reader. 

On iPhone XS, iPhone XS Max, and iPhone XR Express Card power reserve allows you to use your DukeCard that has Express Mode turned on for up to 5 hours when you need to recharge your battery.