A motorized shaving apparatus and head therefor that cuts or trims hair via shearing. In one embodiment, the invention is a shaving apparatus head comprising: a body; a rotary cutter mounted to the body so as to be rotatable about a rotational axis, the rotary cutter comprising cutting edges that collectively define a reference cylinder about the rotational axis; and a blade mounted to the body so as to extend along a first reference plane that intersects the reference cylinder, the blade positioned so that a user's hairs are sheared between a cutting edge of the blade and the cutting edges of the rotary cutter when the rotary cutter is rotating about the rotational axis.

A shaving apparatus (1000) is disclosed in which a rotary cutter (1300) and a fixed blade (350) are used to shear a user's hairs therebetween during a shaving process. Various advancements are disclosed herein, including without limitation accurate positioning of the fixed blade in the head (200A) relative to the contact apex of the rotary cutter, bi-directional rotation of the rotary cutter, a cover-blade assembly for detachable coupling and decoupling from a base component of the head, the use of contact rollers on the head to treat and/or prep the skin and/or hairs for shearing, and a rotary cutter configured to pinch, pull and shear hairs.

A shaving apparatus (1000) is disclosed in which a rotary cutter (1300) and a fixed blade (350) are used to shear a user's hairs therebetween during a shaving process. Various advancements are disclosed herein, including without limitation accurate positioning of the fixed blade in the head (200A) relative to the contact apex of the rotary cutter, bi-directional rotation of the rotary cutter, a cover-blade assembly for detachable coupling and decoupling from a base component of the head, the use of contact rollers on the head to treat and/or prep the skin and/or hairs for shearing, and a rotary cutter configured to pinch, pull and shear hairs.