The Amazon Fresh grocery store opens in London on March 4, 2021, where a sign explains that shoppers can pick up items and walk out of the store, contactless, without the need for a cashier. Customers will scan a QR code on their way into the store, with cameras and technology identifying the items that shoppers take from the shelves and automatically charging the purchase to their account. (Victoria Jones/AP)
Amazon opens Amazon Fresh supermarket in London as it takes cashier-free shopping overseas
