From video game systems to smart TVs and laptops, it seems like everywhere I turn there's another device using gesture control. The iPhone doesn't work with gestures at all, but Samsung's Galaxy S4 takes gesture control to another level, adding eye control for good measure. By waving your hands in the air like you really do care, you can answer calls, switch songs in the music player or switch tabs in the browser, all while your phone sits on top of your desk or car dashboard.
The Galaxy S4's Smart Pause feature watches your eyes and recognizes when you're paying attention to video content on the screen; when you've averted your gaze, Smart Pause stops the playback until you look again. The phone's Smart Scroll feature lets you move up and down a Web page by staring at the screen and tilting the phone.