Attachment of more various types of watch heads is realized. A band device includes an annular band portion that forms a hollow portion, and the band portion includes a sensor module and an engaging portion detachably engaged with end pieces to which a watch head is attached.

An apparatus for positioning between a wristwatch and a user's wrist is provided to aid in modeling wristwatches. The apparatus includes a spacer and a connection means (e.g., a band, a magnet, or the like). The spacer is configured to be positioned between a lower watchband portion of the wristwatch and a lower wrist portion of the user's wrist. The spacer may be resilient and may include an arcuate outer support surface configured to rest against an inner surface of a watchband of the wristwatch. The spacer is held in said position using the connection means. The band is implemented to create a passageway for receiving the user's wrist for holding the apparatus securely around the user's wrist. The apparatus may further include a cover configured to cover at least the spacer for hygienic, aesthetic, and non-slip purposes.

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.

A device for fixing a bracelet to a watch case includes at least one horn and a bracelet strand. The horn and the bracelet are held together by a bar. The horn includes a rigid blade arranged to fit together with at least one recess made in the bracelet strand. The at least one recess has an opening for receiving the blade during the placement of the bracelet strand so as to form a rigid link once the bar is put in place.

A wearable device includes a main body and a wristband. The main body includes a main case and a bottom cover, a spring bar is disposed on the wristband, a connection member configured to couple to the spring bar is disposed on the main case and has two connection lugs, an accommodating hole is provided on each connection lug, one end of the accommodating hole has an opening, the other end of the accommodating hole is provided with a limiting portion, the limiting portion is provided with a through hole, a locating groove is provided on the connection lug, a button is disposed on the connection lug, the button is slidably disposed in the accommodating hole, a limiting groove is provided on the button, a limiting portion is disposed on the bottom cover, and the limiting portion is located in the locating groove and extends into the limiting groove.

A one-piece bar is for attaching a bracelet to a watch. The bar extends in a longitudinal direction and includes two pivots and a body connecting the two pivots, each pivot being intended to be introduced into a corresponding housing of a respective horn of a watch case. The body includes a plurality of elements connected to one another, each element having a hollowed portion, in order to give the bar longitudinal elasticity and allow elastic deformation thereof in the longitudinal direction.

A band configured to couple a device to a body of a user is disclosed. The band includes a first link comprising a recess defined in a body of the first link, a leaf spring positioned in the recess and comprising a tongue portion protruding from the leaf spring, and a second link coupled to the first link and comprising first and second lip portions extending away from a body of the second link and separated from one another by a gap. The tongue portion is positioned in the gap between the first and second lip portions, and the first and second lip portions engage the leaf spring to retain the second link to the first link.

Disclosed is a wearable electronic device that includes a strap detachably fastened to at least a part of a housing and including a plurality of unit links, a button operatively exposed from at least one of the plurality of unit links, a tension rib secured to an end portion of the button in an internal space of the unit link and having opposite ends that have positions that are changed by pressing of the button, and a hinge pin secured to each of the opposite ends of the tension rib, and disposed to at least partially protrude from left and right sides of each of the unit links, wherein the plurality of unit links are fastened to or separated from each other, such that the hinge pins of a unit link, moving by means of the pressing of the button, are inserted into or extracted from pin-receiving recesses formed in an adjacent unit link.

A wearable electronic device may include: a housing including a front plate, a rear plate, and a side member surrounding an inner space between the front plate and the rear plate, wherein the side member includes at least one portion including an external opening and an inner channel connecting between the inner space and the external opening: an insulating structure inserted into the inner channel; a conductive path partially embedded in the insulating structure, wherein the conductive path includes a first end exposed to the inner space and a second end exposed to the external opening; at least one printed circuit board positioned in the inner space and electrically connected to the first end of the conductive path; a display exposed through the front plate; and a band structure connected to the portion of the housing and configured to be mounted on a portion of a human body. The band structure may include a conductive rod movably inserted into the external opening and electrically connected to the second end of the conductive path, and an electronic component at least partially embedded in the band structure and electrically connected to the conductive rod. Other various embodiments may also exist.

The invention relates to a portable electronic device including a case and a watchband link attached to said case, the case comprising a pair of horns, between which is disposed a female electrical connector, the link comprising a male electrical connector disposed at the end of the link and adapted to make an electrical connection with the female electrical connector when the link is mounted on the case. According to the invention, each horn comprises a bar intended to come to be housed in an opposite housing of the watchband, the bars engaging successively in a guide groove and then in a locking groove formed in the link, the device comprising a manual actuation member for moving the bars into a retracted position.