Paying on Amazon with the palm of your hand is already an option, this is how this biometric technology works Posted byEntrepreneur en Español April 23, 2021 Leave a comment on Paying on Amazon with the palm of your hand is already an option, this is how this biometric technology works Without cash, without a card, without transfers and even without a cell phone, the Amazon One system reads your hand so you can pay for your purchases, see how it works.