A system for hand gesture detection, comprising: a wrist wear adapted to be worn about a wrist of a user and including a set of skin electrodes; an impedance measurement circuit adapted to measure at least a first impedance in a first portion of the wrist and a second impedance in a second portion of the wrist which second portion is circumferentially displaced in relation to said first portion, and a processing circuit adapted to detect a hand gesture of the user based on the first and the second impedance measured by the impedance measurement circuit; the system being characterized in that the first impedance is measured via a first electrode group (320a; 420a) including four skin electrodes (321, 322, 323, 324; 421, 422, 423, 424) of said set of skin electrodes and the second impedance is measured via a second electrode group (320b; 420b) including four skin electrodes (323, 326; 325, 322; 425, 426; 424, 427) of said set of skin electrodes, wherein, for each one of the first and the second electrode group, a first and a second electrode (321, 322; 323, 326; 421, 422; 425, 426) of said electrode group are arranged on opposite sides of a geometrical line (P1; P2) extending between a third and a fourth electrode (323, 324; 325, 322; 423, 424; 424, 427) of said electrode group, and wherein the first electrode group and the second electrode group have at least one electrode in common and wherein said at least one common electrode (322, 323; 424) is arranged between the other electrodes of the first electrode group and the other electrodes of the second electrode group, as viewed along a circumferential direction of the wrist wear. a wrist wear adapted to be worn about a wrist of a user and including a set of skin electrodes; an impedance measurement circuit adapted to measure at least a first impedance in a first portion of the wrist and a second impedance in a second portion of the wrist which second portion is circumferentially displaced in relation to said first portion, and a processing circuit adapted to detect a hand gesture of the user based on the first and the second impedance measured by the impedance measurement circuit; the system being characterized in that the first impedance is measured via a first electrode group (320a; 420a) including four skin electrodes (321, 322, 323, 324; 421, 422, 423, 424) of said set of skin electrodes and the second impedance is measured via a second electrode group (320b; 420b) including four skin electrodes (323, 326; 325, 322; 425, 426; 424, 427) of said set of skin electrodes, wherein, for each one of the first and the second electrode group, a first and a second electrode (321, 322; 323, 326; 421, 422; 425, 426) of said electrode group are arranged on opposite sides of a geometrical line (P1; P2) extending between a third and a fourth electrode (323, 324; 325, 322; 423, 424; 424, 427) of said electrode group, and wherein the first electrode group and the second electrode group have at least one electrode in common and wherein said at least one common electrode (322, 323; 424) is arranged between the other electrodes of the first electrode group and the other electrodes of the second electrode group, as viewed along a circumferential direction of the wrist wear.