Another set of innovation that Samsung introduces in the Galaxy S4 is the ability to interact without touching the phone. To list a few:

– Air View: information appears when you hover your finger over the screen.
– Air Gesture: Quick glance, Air jump, Air browse, Air move, Air call-accept.
– Motion: Direct Call, Smart alert, Tilt Zoom, Pan, Turn over mute
– Smart screen: Smart stay, Smart rotation, Smart pause, Smart scroll

Some of the functions are rather useful, but here’s the issue: not all works on apps.

  • Air jump and Air browse: swipe your hands over the air and scroll the web page or photos. Only works on stock browser, stock gallery app.
  • Air View: works on stock Messaging, Email, Calendar, Contact, Gallery. Also works with Flipboard, surprisingly. I find this the most useful touch-free feature as lots of apps support this feature compare to the rest.
  • Smart stay: works on stock Video Player. While it sounds useful, this feature becomes an irritant when many people are watching the video. Often, the feature fails to detect a face among the people and then it would pause playback.
Fortunately, you can easily enable and disable the gesture features via the dropdown menu.

My verdict: the touch free features are not deal-breakers, but they might help you interact with the phone when you don’t want to touch your phone with your soiled hands.

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