Personal appliance

A razor comprising:

• a. a handle comprising an implement connecting structure;
• b. an implement connected to the implement connecting structure;
• c. an implement displacement sensor positioned in the handle;
• d. a follower positioned in the handle, the follower having a first end and an opposing second end, the first end of the follower being in contact with the implement and the second end of the follower being sensed by the implement displacement sensor, the follower converts rotational movement of the implement into a linear displacement, the linear displacement of the follower directly correlates to the rotational displacement of the implement Permitting the implement displacement sensor to measure a displacement of the implement relative to a fixed position of the handle;
• e. a power source positioned in the handle;
• f. an acceleration sensor positioned in the handle;
• g. an angular velocity sensor positioned in the handle;
• and
• h. a communication device positioned in the handle.