Paris, Nov. 4, 2014 ï¼Watchdata Technologies, a recognized pioneer in digital authentication and transaction security, launched its first smart wearable device Sharkeyâ¢, with mobile payment feature, at CARTES Secure Connexions Exhibition and Conference. Representatives from Singapore EZ-Link, EMKA Group and China UnionPay attended Watchdataâs new product launch, and unveiled this product at the launch.