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Physical keys vs. onscreen keys

Your smartphone has two types of keys:

  • physical keys (the Power, ActionKey, Home, Camera, Volume & Zoom keys) and
  • onscreen keys that are pressure-sensitive areas on the screen (the Back and the Menu keys).

To activate the physical keys, you either press or press & hold them.

To activate the onscreen keys, you either touch or touch & hold them.

One key may have several functions. In such case, one of the functions is activated by pressing/touching the key, and the other by pressing & holding/touching & holding the key until the action occurs.