Attachment systems for attaching a wearable electronic device to a user including a sizing band and a retaining band are disclosed. The sizing band includes at least one sizing eyelet and a band-insertable end. The retaining band includes at least a post for insertion into the sizing eyelet of the sizing band and a concealment aperture configured to receive the band-insertable end of the sizing band. On a bottom surface of the retaining band can be a recessed guide bed configured to guide the band-insertable end along the bottom surface of the retaining band. A wearable electronic device can couple to both the sizing band and the retaining band by accepting an end portion of each band into receiving channels extending into opposite sidewalls of the housing.

The assembly includes a watch, a watchband, a tracking device and a flexible retaining part formed to engage the watchband and to retain the watch and the tracking device. The part has a cylindrical shape wall with an open top edge spaced from an inwardly extending collar to define a recess to receive the tracking device. Frist and second arcuate wall extensions are connected by a member and define aligned openings through which the tracking device can be inserted into the retaining part, and which are adapted to receive the watchband. When the watch is situated in the top of the part, the tracking device is situated in the collar in the interior surface of the retaining part, and the watchband is inserted through the align openings, the tracking device is securely retained between the watchband and the watch. The watchband may be a slap watchband.

A wearable device may include a watchcase defining a mounting slot and a key slot communicating with each other and a watchband. The watchband may include a strap-shaped body; and a clamping part connected to one end of the strap-shaped body and including a rotating part and a stop block arranged in the rotating part; the stop block is capable of moving out of or back into the rotating part; when the stop block moves into the rotating part, the clamping part is configured to be inserted into the mounting slot; after the clamping part is inserted into the mounting slot, the clamping part is configured to be rotated relative to the watchcase by rotating the watchband, and the stop block is configured to move out of the rotating part and is clamped in the key slot, such that the watchband is attached on the watchcase.

A device for attaching a bracelet to a watch case, the device including, on the one hand, a bar secured to the watch case by a horn, and on the other hand, an insert integral with the end of a bracelet, wherein the bar and the insert are complementary in order to cooperate by interlocking to form removable assembly to make the bracelet interchangeable. The bar is formed by a cylindrical hollow body provided with two retractable pivots, and having at least one housing arranged to cooperate by interlocking with an insert, the bar including a device for holding the insert, and being arranged so as to pivot from a first position, in which the insert is capable of being positioned on the bar, into a second position in which the insert is locked onto the bar by locking device cooperating with the holding device.

A watch strap assembly may include a first watch strap and a second watch strap. The first watch strap may include a first strap body and a confining strap. The confining strap may be integrally formed with the first strap body. The confining strap may be located between two opposite ends in a length direction of the first strap body. A channel is defined between the confining strap and the first strap body. The second watch strap may include a second strap body. An end of the second strap body may be capable of passing through the channel and being secured to the first strap body.

The present application relates to a wearable device, a strap, and an engaging mechanism. The wearable device includes a watch body and a strap. The strap includes a strap body, a peg, a eject pin, and a linkage component. The strap body is provided with a receiving space, and the strap body is provided with a peg-sliding hole and a first through hole. One end of the peg passes through a peg-sliding hole and the other end is located in a receiving space of a watch body; the eject pin is located in the receiving space and can pass through the first through hole; the peg is configured to drive the eject pin to pop out from the first through hole via the linkage component and engage with the installation groove; the peg is further configured to drive the eject pin to move towards the receiving space.

The present application relates to a wearable device, which includes a watchcase, a button, and a watchband. The watchcase is provided with a groove. The button is provided in the groove and can be moved to a first position and a second position relative to the watchcase. An end portion of the watchband is provided with a clamping groove extending to an edge of the watchband, the end portion can be received in the groove, and in the first position, the button passes through the clamping groove and engages the watchband with the watchcase, and in the second position, the button can be withdrawn from the clamping groove to enable the watchband to be detached from the watchcase.

Embodiments of a watch can include a watch having an analog watch face, a first watch band portion, a second watch band portion and an analog watch face. The watch can include a digital clasp having a digital display and a circuit board associated with a controller.

An electronic device may include a main body including a front plate, a rear plate disposed to be spaced apart from the front plate, a lateral member surrounding a space between the front plate and the rear plate, and a display viewed through at least a portion of the front plate. The electronic device may further include a housing having a space therein and combined with a strap at one side thereof in a first axial direction, a first fastening part protruding from another side of the housing toward the main body and detachably connected to the main body, a second fastening part formed in the main body and engaged with the first fastening part, and a button disposed in the housing, exposed at least in part to an outside of the housing, and moving the first fastening part to be separated from the second fastening part.

The application relates to a structure of a watch strap and a watchcase which are fixed by a pressing structure engaging with an elastic pin. The watchcase is provided with a connection head, the connection head is provided with an elastic pin fixing hole adjacent to an end portion of the connection head and for disposing an elastic pin structure. An end portion of the watch strap is provided with the pressing structure and a connection head receiving recess. An end portion of the elastic pin structure in the elastic pin fixing hole is inserted into an elastic pin engaging hole defined in the watch strap by spring elasticity, an end portion of the pressing structure abuts against the end portion of the elastic pin structure in the elastic pin engaging hole. The structure is simple and practical.