https://www.theverge.com/2018/12/2/18122772/amazon-testing-larger-cashier-less-stores-report

Amazon might be aiming to scale up its cashier-less stores, according to a report in The Wall Street Journal, which says that the company is testing the technology in larger stores.

In January, Amazon opened its first cashier-less store in Seattle, which was followed by additional locations in Seattle, Chicago, and San Francisco. Those stores use cameras and software to detect what items customers pick up and charges them accordingly, allowing them to forgo the entire check-out process.