A coupling member that is attachable to/detachable from a housing of an electronic device while making the housing wearable on a user's body, and an electronic device including the coupling member is provided. The electronic device includes a band member that is configured to come in contact with a user's body portion, a slide member that is mounted on the band member, and is bound to a portion of the housing in a state where the coupling member is mounted on the housing, an opening that is formed in the slide member, a locking member that is disposed on the band member, and a locking protrusion that is formed on a locking member. The locking protrusion appears to the outside of the slide member through the opening according to the reciprocating of the locking member, and the coupling member is bound to the housing.

A coupling pin and a wearable electronic device in which the coupling pin is configured to connect a wearable member to a housing of the wearable electronic device are provided. The coupling pin includes a tube portion which is configured to be accommodated in the wearable member, and which at least partially has electrical conductivity, a core portion which is configured to protrude from at least one of both ends of the tube portion to be bound to the housing, and which at least partially has electrical conductivity, and a sleeve which is arranged adjacent to the tube portion while surrounding at least a portion of the core portion, and which has electrical conductivity, wherein the sleeve is electrically insulated from the core portion and the tube portion.

A device capable of being used for a long time is achieved. A power supply, a connection method of a power supply, or a connecting member, for easy attachment and detachment and non-detachment when in use, is provided. A power supply, a connection method of a power supply, or a connecting member for easy replacement is provided. A highly designed power supply is provided. Power from a battery is supplied to an electronic device through a connecting member including a pipe, a spring, and a pair of pivots. The pair of pivots are electrically insulated from each other, and electrically connected to any one of a pair of electrodes of the battery. The electronic device into which the pair of pivots are inserted includes a pair of bearings capable of receiving power.