The first feature, Message Sneak Peek , brings up a preview of an email when you right click on it in your inbox.

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The Galaxy S4 also offers new forms of interaction, such as Air Gesture, which lets users navigate the phone without touching it, and Air View, which lets users preview, say, email content, by hovering their finger over the screen.

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Hovering over a thumbnail of a picture in the Gallery will reveal a bigger thumbnail, and hovering over one email in a list will show a preview of its first lines.

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Air View allows users to hover with the S Pen over an email, calendar entry, image gallery or video to preview the content without having to open it or wait for screen transitions.

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Air View allows users to hover with the S Pen over an email, S Planner, image gallery, or video to preview the content without having to open it.

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