The core of an electric shaver is its electrically powered blade system, which can be either rotary or foil-based.

An electric shaver, also known as a dry razor or electric razor, is a grooming device with an electrically powered blade that cuts hair. It typically doesn't require shaving cream, soap, or water, allowing for "dry shaving," although some users prefer a lubricant for comfort. Electric shavers are broadly categorized into foil and rotary types, each with its own advantages.