How to Use Voice to Take a Picture with Galaxy S4
Like Galaxy S3, S4 can take picture with a voice command. The camera starts shooting as you command the device with your voice. To enable voice ...
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When you use S Pen to work with your one of Galaxy Note series devices, you can literally do all the actions from typing, selecting, copying to zooming in or out. To zoom in or zoom out with S Pen, you just need to Double tap with your S Pen to activate the zooming mode, and then scroll it up to zoom out and scroll it down to zoom in. Double tap again to zoom out to actual size
See Also: Galaxy Note 3 Tips and Tricks