Wal-Mart employee Adriana Cajuso takes payment from customer Yoalmi Matias at a store in Miami. By mid-2016, Wal-Mart says, customers will have the option of paying via their smartphones.
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A Nordstrom salesperson shows a customer an online selection of shoes on an in-store iPad. Like some other retailers, Nordstrom is using mobile devices to make on-the-spot sales and check companywide product inventory instantly.
Courtesy of Nordstrom
A barista processes a customer's payment using Square, a device that turns a mobile device into a card swiper. More businesses are using the devices to simplify credit card payments. Others are embracing technology that allows consumers to pay with their cellphones.