Pay Your Friends With Apple Pay
Another exciting iOS 11 feature is that you can pay your friends with Apple Pay. The new feature is accessible in Messages and with Siri. You can send money to friends and family or ask for money. The funds come off your credit or debit card and go into an Apple Pay Cash account on the recipient's iPhone. This works with the cards already linked to your Apple Pay account.
You can then send money from your Apple Pay Cash account to someone, make a purchase online or in a store with Apple Pay. You can also transfer Apple Pay to your bank with a withdrawal option.
We're waiting to learn more about this feature, and you cannot use it in the iOS 11 beta.