The Wall Street Journal: Samsung shows off new smartphone with foldable screen

SAN FRANCISCO — Samsung Electronics Co., suffering a handset sales slide, revealed a foldable-screen smartphone that folds like a book and opens up to tablet size.

At a developer showcase event on Wednesday, Samsung 005930, +0.11% said the phone, which is 7.3 inches when opened, would be ready for mass production in the coming months. It boasts a second, smaller display on the outside — which it called a cover window — allowing users to check emails and perform other basic tasks when closed.

Samsung, which ships one of every five phones globally, is eyeing a splashy device to help lift sales, as consumers hold on to their handsets longer and lower-cost Chinese rivals gain strength.

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