Samsung launches Galaxy S10, first 5G handset, as well as Galaxy Fold 'luxury' folding tablet smartphone

SAN FRANCISCO - Samsung Electronics Co. unveiled a smartphone Wednesday that when folded open can be used as a tablet, becoming the first major manufacturer to offer the feature as it strives to stoke excitement in a slumping market. The South Korean giant also appeared to get the jump on rivals by announcing the first smartphone for fifth-generation -- or 5G -- wireless networks, while stepping up its efforts in artificial intelligence and wearables. The Galaxy Fold, unveiled at a San Francisco event, serves as a smartphone with a 4.6-inch display but also opens like a book to become a 7.3-inch tablet. "We are giving you a device that doesn't just define a new category, it defies category," said Samsung's Justin Denison at the event. The Fold will be available April 26, starting at $1,980, the company said.