The Wall Street Journal reports that Amazon shops and other merchants could offer a hand-based payment system. Your credit card or account info would be linked to your palms, so when checking out you'd just put out your hand. You wouldn't have to touch any surface like with Touch ID on Apple iPhones. Amazon Go stores are cashier-less, but to enter you have to swipe an app on a phone. This would eliminate that step, possibly replacing the app with a quick hand scan to enter.

Source: Wall Street Journal January 18, 2020 23:15 UTC