Samsung Galaxy S4

The Samsung Galaxy S4 is an Android smartphone produced by Samsung and was first shown publicly on March 14, 2013 at Samsung Mobile Unpacked in New York City. It is the successor to the Samsung Galaxy S III which maintains a similar design, but with upgraded hardware and an increased focus on software features that take advantage of its hardware capabilities—such as the ability to detect when a finger is hovered over the screen, and expanded eye tracking functionality. A hardware variant of the S4 became the first smartphone to support the emerging LTE Advanced mobile network standard.