Retail Giant Amazon is expanding its Amazon One biometric palm reader across further stores in Seattle.

The system will now be available across eight Amazon retail stores.

Amazon One, which uses biometric technology to enable a customer to pay for items by scanning their palm, was first launched September 2020.

Amazon has said that the service is “highly secure” and uses custom-built algorithms and hardware to create a person’s unique palm signature.

To use Amazon One, customers must insert their credit card into the machine, hover their palm over the device, and follow prompts to associate that card with the unique palm signature, which is developed in real time.

Once enrolled, customers can use the service at any of the company’s Amazon Go stores.

Last year, when the service was first launched, the BigTech said that it was “excited” to see Amazon One in more retail environments and that its in active discussions with several potential customers.

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