Samsung Wallet Money, a prepaid payment service jointly operated by Samsung Electronics and Woori Bank, has expanded overseas, allowing users to pay with their Galaxy smartphones worldwide without installing local payment apps, Woori Bank said Wednesday. Unlike other mobile payment services that require users to install and open a separate app and complete additional authentication steps at checkout, Samsung Wallet Money lets them pay by tapping their Galaxy phone on a contactless terminal. Launched in Korea last year, the service has since surpassed 3 million users. Customers link a domestic bank account to their Wallet Money account to top up their balance and make payments. The overseas rollout extends the service to Mastercard merchants worldwide and WeChat Pay merchants across China. “We take great pride in creating a new global payment experience with Samsung Electronics in Korea, a country with strengths in both smartphone manufacturing and digital finance,” Woori Bank CEO Jung Jin-wan said during a press conference at the lender’s headquarters in Seoul. He summed up the serv