Amazon and Walmart are intensifying their tech-driven competition by launching AI-powered digital ... [+] shopping assistants to enhance customer experience and boost sales. Amazon's virtual assistant and Walmart's equivalent use advanced technology to simplify product searches, offer personalized recommendations, and bridge the gap between online and in-store shopping, marking a significant shift in retail.NurPhoto via Getty ImagesAmazon's chief engineer used to have a dog named Rufus who ran up and down t ...