Samsung SM-G930F - Manual (Page 113)

Applications
113
Making payments
1
Tap and hold a card image at the bottom of the screen and drag it upwards.
Alternatively, tap Samsung Pay on the Apps screen.
2
On the cards list, swipe to the left or right and select a card to use.
3
Place your finger on the Home key to scan your fingerprint.
Alternatively, enter the payment PIN you set when setting up the Samsung Pay.