Video: Hands-on with the Samsung Galaxy S 4

See a demonstration of the key new features of Samsung's latest smartphone

Last week, Samsung debuted its Galaxy S 4 smartphone, which includes a 5-inch screen, either a quad cord 1.9 gigahertz processor or an octa-core 1.6 gigahertz processor, and a Super AMOLED screen with 441 pixels per inch.

Samsung also showed off some of the key features of the new offering, including Air View (which allows for touch-style interaction without having to actually touch the screen), multitasking and multiscreen capabilities, the expanded notification bar, and the dual camera. See the video below for a full demonstration of these features.

[ For full analysis -- and an explanation of how Samsung has adopted a software-based approach to smartphones rather than focusing on raw system specs -- see Galen Gruman's article on how Samsung is trying to out-Apple Apple and out-Google Google. | Keep up on key mobile developments and insights via Twitter and with the Mobile Edge blog and Mobilize newsletter. ]