Walmart has both scale and an installed base of customers, complete with subscriptions, to give traditional banks and digital-only players some real competition.The OnePay digital app and wallet offer a single point of access for a continuum of BNPL and other offerings.OnePay and Synchrony’s new credit card program with Walmart is the latest installment of a multi-year push by the retailing giant into traditional banking services.Each week, PYMNTS Intelligence details the competition between Walmart and Ama ...