https://techcrunch.com/2019/04/09/walmart-to-expand-in-store-tech-including-pickup-towers-for-online-orders-and-robots/

Walmart is doubling down on its technology innovations in its brick-and-mortar stores in an effort to better compete with Amazon. The retailer today announced the expanded rollout of several technologies – ranging from in-store Pickup Towers to help customers quickly grab their online orders to floor scrubbing robots. These jobs were, in many cases, previously handled by people instead of machines.

The retailer says it will add 1,500 new autonomous floor cleaners, 300 more shelf scanners, 1,200 more FAST Unloaders, and 900 new Pickup Towers to its U.S. stores.