Embodiments of a razor are disclosed. According to at least one embodiment, a razor 1 includes a handle 20 grippable by a user, a blade housing 11 coupled to an end of the handle, the blade housing accommodating therein one or more blades 12, a power generation unit 32 mounted in the handle for generating power, a drive transmission unit 31 configured to be driven using the power generated by the power generation unit, and a swing member 14 disposed in front of a foremost blade 12a among the one or more blades, to swing closer to or farther away from the one or more blades according to driving of the drive transmission unit. The razor may be realized in various ways according to embodiments disclosed.