Samsung will make foldable smartphones mainstream by continuing to “listen and learn” from users in order to broaden their appeal, a senior UK executive has said. The phone maker unveiled its fourth-generation foldable devices – the Galaxy Z Flip4 and Fold4 – on Wednesday. Conor Pierce, Samsung’s corporate vice president for Britain and Ireland, said that, while the new devices remain in the ultra-premium smartphone category, much broader use among the wider public will follow in the coming years. “It will be mainstream, we will have a ‘foldable future’, if you like, across many different pric…