In just eleven hours time Samsung will be taking the wraps off the Galaxy S4 at its big presentation at Radio City Music Hall in New York City. In the meantime, we're seeing more leakage of the upcoming handset, including these two Chinese demos of the handset showing a couple of new features.

First up is 'smart pause,' which uses the front-facing camera to detect when you're looking away from a video, pausing it accordingly. And secondly there's 'floating touch,' a feature previously rumored for the S4, and one we've already seen on the Sony Xperia Sola. Like the S Pen's hovering capabilities on the Galaxy Note 2, this detects your finger at a distance, bringing up extra info like folder previews in the gallery app.

So it seems two of the rumored Galaxy S4 features may indeed be headed our way later today. Check out the "smart pause" demo above. We've got the "floating touch" video embedded after the break.

Stay tuned to AC for full coverage of the day's events, live from New York.

More: Samsung Galaxy S4 forums

Source: istevecom; via @Mitridatex