Disclosed is a device (100, 101) for functional electrical stimulation, comprising: a garment (10) mountable on a user's body part, an assembly (20) comprising a socket (8) and an electrode (9, 9A, 9B) in turn comprising a plurality of electrode pads (91), the electrode (9, 9A, 9B) being fixed to the socket (8), the electrode (9, 9A, 9B) and the socket (8) forming a single part, a stimulator (1) comprising means for controlling the activation/deactivation of stimulating electrical signals to be provided to at least some of said plurality of electrode pads (91), wherein the garment (10) defines a hollow area (60) configured to receive the socket (8), the socket (8) being configured to house the stimulator (1), wherein in use of the device (100, 101), when the socket (8) is received by said hollow area (60), a first portion of the electrode (9, 9A, 9B) is in contact with an inner surface of the garment (10), the electrode pads (91) of the electrode (9, 9A, 9B) being in a fixed position with respect to the garment (10), and a second portion (921) of the electrode (9, 9A, 9B) is in contact with a surface of the socket (8) for receiving the stimulating electrical signals delivered by the stimulator (1) when the stimulator (1) is housed in the socket (8). Also disclosed is a system (400) comprising such a device (100, 101) for functional electrical stimulation.L'invention concerne un dispositif (100, 101) destiné à une stimulation électrique fonctionnelle, comprenant : un vêtement (10) pouvant être monté sur une partie du corps d'un utilisateur, un ensemble (20) comprenant une douille (8) et une électrode (9, 9A, 9B) comprenant à son tour une pluralité de plots d'électrode (91), l'électrode (9, 9A, 9B) étant fixée à la douille (8), l'électrode (9, 9A, 9B) et la douille (8) formant une seule pièce, un stimulateur (1) comprenant des moyens de commande de l'activation/désactivation de signaux électriques de stimulation à fournir à au moins une partie de ladite pluralité de p
