Samsung says its Galaxy S IV phone will be unveiled March 14 . Announcement came at Barcelona 's Mobile World Congress . The new smartphone is expected to have a 4.3-inch screen and feature an 8-megapixel camera with LED flash, according to the Wall Street Journal.
Samsung says its Galaxy S IV phone will be unveiled March 14 . Announcement came at Barcelona 's Mobile World Congress . The popular Galaxy S III has emerged as the iPhone 's chief rival .