Electric shaver (1) having a main body (3) and a shaving unit (5) coupled to the main body. The shaving unit has three hair-cutting units (9a, 9b, 9c) each having an external cutting member (11) with a skin-contact surface (13) with hair-entry openings (15) and an internal cutting member (17) which is rotatable relative to the external cutting member. The hair-cutting units each have at least one geometric parameter (w) that influences a hair-cutting process of each individual hair-cutting unit. The shaving unit can be positioned relative to the main body in at least two different angular positions about a central axis (37) of the shaving unit. A value of the geometric parameter of at least one of the hair-cutting units is different from the values of the geometric parameter of the other hair-cutting units.

A shaving unit (20) for use in an electric shaver (1) comprises at least one hair-cuffing unit (21) comprising an external cutting member (23) having hair-entry openings (24) in a cutting track surface (25) and an internal cutting member having at least one hair-cutting element and being movable relative to the external cutting member (23), and a base member (22) supporting the at least one hair-cutting unit (21). The shaving unit (20) further comprises at least one skin-heating unit (30) comprising a skin-contacting member (31) having a skin-contacting surface (32) arranged adjacent to the at least one hair-cutting unit (21) to contact the skin during use of the shaving unit (20), and at least one infrared or near-infrared light source (33) integrated in the skin-contacting member (31), thermally coupled to the skin-contacting surface (32) and arranged to emit infrared or near-infrared light via the skin-contacting surface (32).

An electric shaver includes: a head part, a main body, and a connecting seat. The head part is provided with a first sliding seat capable of transversely sliding back and forth and a first tool carrier configured to install a moving blade. The main body is provided with a drive device with an output shaft therein, a top of the first sliding seat is connected with the first tool carrier, and a bottom of the first sliding seat is connected with the output shaft. After the output shaft rotates, the first sliding seat can be driven to slide back and forth transversely. An end of the connecting seat is connected with the main body, and the other end of the connecting seat is hinged with the head part along a transverse hinge shaft. The shaving ability of the electric shaver is stronger and the user experience is better.