The technology, which Amazon is marketing as the Just Walk Out system, works much like the e-commerce giants own branded Amazon Go stores. The major difference is at the entrance, where customers must enter a credit card into a turnstile. They can also enter an email address in order to receive a digital receipt.
Once in the store, customers’ shopping selections are tracked using ceiling cameras and shelf weight monitors, just like in a Go store. When they’re ready to leave, they simply do so. The credit card that they scanned upon entering the store will be charged for the purchases.