Amazon One’s payment technology uses machine vision and proprietary algorithms to scan the unique features below the surface of a user’s palm, including vein patterns. Unlike a fingerprint scanner, however, users won’t have to press their palm down on the reader, making it a truly contactless (and Covid safe) payment method. When you scan your palm, Amazon will match it to your credit card and process the payment. These scanner have been rolled out at two its Amazon Go stores in Seattle where customers can shop and pay without the traditional checkout process or indeed a phone nor even a wallet. This is a technology which Amazon plans to make available to other retailers for the same purpose and it may even be used for biometric entry into buildings and even your house one day.