The stores are cashierless, thus partially automated (having an added option in some locations to manually checkout if desired), with customers having the ability to purchase products without being checked out by a cashier or using a self-checkout station.

[5] Amazon described Go stores to have used several technologies, including computer vision, deep learning algorithms, and sensor fusion for the purchase, checkout, and payment steps associated with a retail transaction which was later revealed to be done remotely by a team of people in India.

[6] The store concept is seen as a revolutionary model that relies on the prevalence of smartphones and geofencing technology to streamline the customer experience, as well as supply chain and inventory management.

[27][28] The Verge reported that the first store was scheduled to open to the public in early January 2017, preceded by a December 2016 beta version for Amazon employees only.

[32][33] The third Amazon Go store, at the Troy Block complex in South Lake Union, is the second largest at 2,100 square feet (200 m2) and opened in September 2018.

[39] In response to potential discrimination against low-income people, San Francisco, Philadelphia, and New Jersey have passed legislation banning cashless stores and retailers.

[40] A new Amazon Go store in New York City opened on May 7, 2019, with cash acceptance in response to previous criticism over the use of app-only purchases and its effects on the poor.

[41] In response to the legislation, stores in San Francisco also accept cash, with an attendant at the front letting in and checking out customers if they do not have the app.