NEW YORK–(BUSINESS WIRE)–Samsung Pay—the most widely accepted mobile payment system—celebrates its first anniversary in the U.S., building on the digital wallet’s record of success. In just one year, Samsung Pay has driven innovation, adding features like support for membership and gift cards and coupons, allowing users to slim down their wallets. Samsung Pay now supports over 500 banks and credit unions, representing over 80 percent of the debit and credit card market in the U.S. Samsung Pay