What is the difference of optical steady shot & just steady shot in cameras?

well both are almost the same thing with optical steady shot being better.

optical steady shot uses gyroscope to rotate or shift the camera's lens to a certain angle or degrees so that even if your hand shakes the lens shifts and compensates for that.

in simple steady shot the software does the same work and is bit ineffective relative to the optical one..

and both are effective in "you holding the camera and your hand moves scenario"

for capturing a moving object you ought to have cameras which allow you to modify shutter speed.

faster the shutter speed more the steady the pic will be, but it also depends on the lighting conditions in the point and shoot cameras

Optical Steadyshot

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RE:

What is the difference of optical steady shot & just steady shot in cameras?

Which one is the steady when your holding the camera & your hand moves. & which one is the steady when your subject is the one moving?

There are stores where you can try a camera before you buy it (you will try a shelf model) Most stabilized cameras work well, especially from reputable companies (Canon, Nikon, Pentax). Also, try using exposure settings where you have the shorter exposure time. Some cameras have automatic exposure with priority for diafragm (choose large diafragm) or time (choose shorter). Using higher ISO setting might also help, if the camera allows it.