The big-box retailer will soon offer customers the ability to order hundreds of thousands of its products by voice with the help of Google.
The partnership is another critical step as Wal-Mart looks to advance its e-commerce operations, staying competitive with Amazon and its powerful voice-enabled network Alexa.
While other retailers are already working with Google to sell their products using Google Express — including Target, Costco, Whole Foods, Ulta and Kohl's — none of these companies thus far has allowed shoppers to link up a pre-existing user account with Google Express on the back end.
Wal-Mart also will be offering the largest number of items through the Express platform.
Beginning in September, Wal-Mart shoppers can link their Wal-Mart accounts to Google Express and quickly order — either through voice on Google Home or by shopping on Google Express. By linking a shopper's past Wal-Mart purchase history, Google will be able to more quickly learn the customer's shopping patterns and recommend suitable products.
Using the platform now, a customer can say, "Google, buy peanut butter." Google will then suggest the brand it thinks the customer would like the most.
But Google is just guessing, explained Brian Elliott, general manager of Google Express. He told CNBC that the process of going back and forth, asking if a customer wants this or that, can be clunky.