Walgreen"s, America"s largest pharmacy chain with 9,500 locations across the US, is also turning to new AI technologies for customer engagement and demand analysis. Note that in addition to drugs, Walgreen’s also sells food products that can not always be classified as products for a healthy lifestyle. So, as early as the beginning of the 20th century, the future network of pharmacies was known among buyers for milkshakes and carbonated drinks of its own production.

In late 2018, Walgreen"s began testing smart refrigerators with Cooler Screens. The doors of the refrigerators are equipped with displays that show the entire contents of the refrigerator; so far, such devices, located in the main Chicago branch of the chain, sell only water, ice cream, soft drinks, and alcoholic drinks.

Cooler Screens would not be much different from their, for example, Japanese or Chinese counterparts, which also boast bright, attractive pictures on the display, if it were not for the AI built into the equipment. First, smart refrigerators are equipped with facial recognition cameras that determine the relationship between groups of buyers and the products they buy most often. Secondly, the AI of the refrigerators is connected to the inventory system, and when an item runs out, the warehouse workers get a signal and replenish the stock.

Thirdly, AI independently analyzes information about the most popular products and, based on this data, personalizes advertising for specific buyers. At the moment, 15 major manufacturers have signed contracts with Walgreen"s to advertise their products on smart refrigerators, including Nestle, brewing company MillerCoors and health food manufacturer Conagra Brands.