The Galaxy Round, with a 5.7 inch display, will be available in Korea starting Thursday.
Samsung (SSNLF) did not provide details on prices or when it will be available in others countries.
Both Samsung and LG have been working on curved designs for some time, and each company offers high-end televisions with curved screens that are designed to create an immersive television experience.
Samsung’s official blog, with an embedded video, shows how the Galaxy Round can be sitting on a table and turned off, but will light up when it’s tilted to the side.
Not all prospective customers were impressed with the feature, however, with one person commenting on the blog “Get a rocking chair… you don’t need a smartphone for that!”
Samsung recently caused waves in the tech world when it launched its Galaxy Gearsmartwatch.