Lore said Walmart opted to partner with Google based on the tech company's "significant investments in natural language processing and artificial intelligence".
Walmart has opened new avenues for revenue by making its products available on Google Assistant.
Lore, who took over Walmart's e-commerce arm after the company bought Jet past year, said the company plans to integrate a voice-order feature that will let customers set auto-buy lists of frequently purchased items.
Mr Lore said: 'That's why it makes sense for us to team up with Google.
While that continues to be speculative, what is nearly certain is that voice shopping is here big time, and artificial intelligence too will have a big role to play in that.
Walmart is also integrating its Easy Reorder feature - which has data on both store and online purchases - into Google Express.
In an announcement on the company's blog, Walmart CEO and President Marc Lore revealed how the two companies want to improve your online shopping experiences.
Walmart seems to be running other delivery trials, so Google Express' potential same-day delivery offering just adds a bit to the confusion on how Walmart plans to expand its delivery services. Google Express was launched a few years back but lately it's been upping its game in order to compete on a level playing field. In the tit-for-tat competition for customers, Walmart is moving to establish a stronger e-commerce presence and Amazon is aiming to capture a bigger chunk of Walmart's lower-income customer base. Google has been working on improving the voice shopping experience on the Google Home, and to that effect the company has announced that it is partnering with Walmart.
Walmart says it will be tapping its 4,700 United States stores and its fulfillment network next year to offer more kinds of customer experiences using voice shopping. "That's why we chose to deeply integrate our Easy Reorder feature into Google Express", he said. Easy Reorder, introduced earlier this year, registers in-store and online purchases and saves them to a shopper's purchase history. Walmart already maintains an e-commerce presence and even recently free 2-day shipping on qualifying items without a membership fee, so long as the total purchase is $35 or more.
"As we see these virtual ecosystems grow and become more widespread, we are likely to see a battle commence between the digital assistants such as Google Home, Amazon Echo and Apple HomePod, as retailers and brands affiliate themselves with one or the other".