The present disclosure provides a wearable device comprising: a connector and at least two bodies, the connector is used to connect two of the at least two bodies, an opening structure is formed between portions of the two of the at least two bodies connected by the connector. The opening structure can reduce an area covered by the wearable device on the user's skin. The effect of the wearable device on the heat dissipation of the user's skin can be reduced. Compared with the non-hollow wearable device, the wearable device with the open structure is light in weight, thus the overall weight of the wearable device is reduced.

An embodiment personal item management apparatus includes a wearable band having a fixed circumference that defines a first outer diameter; and a clasp coupled to the wearable band, the clasp having a second outer diameter that is less than the first outer diameter and being adapted to couple a personal item to the wearable band. In an exemplary embodiment, the ratio of the second outer diameter to the first outer diameter is about 0.4.

A motion activated illuminated bracelet includes a circular shaped main body having an inside diameter that is suitable for being worn about the wrist of a user. A plurality of illuminating charms is positioned equidistantly along the main body and include a power source, a switch and a light. A plurality of audible charms is positioned equidistantly along the main body and include a power source, a switch and a speaker. A plurality of decorative charms is positioned equidistantly along the main body and include a housing having any number of decorative elements, and a weight that is complementary to the weight of an audible charm or an illuminating charm. Each of the illuminating charms and the audible charms are selectively activated by a centrifugal force associated with the rotation of the bracelet, and some of the illuminated charms are connected to the main body via a resilient tether.

A wearable smart band and comprises a fixing band provided so as to be wearable on a joint of a user including a human, an animal, a machine, etc., a receptacle member formed on the fixing band so that a tool, a machine part, a device, and an information device is located, and having an upper part covered by a cover; a flexible band provided on one side of the fixing band, whereof the shape of the fixing band is transformed according to movement of the user's joint; and an inserting and drawing assembly having one end connected to the flexible band and the other end connected to the information device or the cover, wherein the information device or cover is drawn or inserted from or into the receptacle member by the transformation of the flexible band according to the movement of the user's joint.

A jewelry item is provided to include a ring-shaped spring and a ring-shaped chain. The ring-shaped chain has a plurality of chain links, each of which is slidably attached to the ring-shaped spring. Each chain link has a plate with a first surface facing the spring and a second surface opposite to the first surface. Each chain link further has a seat and a hook opposite to each other. The hook is inserted into a seat of a subsequent chain link so as to lock the chain links to each other while allowing the chain links to reversibly slide from a compressed position to an expanded position with respect to each other.

In an aspect, there is provided an elastic ring-based ornament making device for constructing an elastic ring-based ornament that includes at least one elastic ring and a plurality of ornamental members positioned thereon. The elastic ring-based ornament making device includes an elastic ring support including a plurality of extension arms which are movable between retracted and extended positions. When the arms are retracted, the elastic ring support supports the at least one elastic ring in a first state. When the arms are extended, the elastic ring support supports the at least one elastic ring in a second state. The at least one elastic ring is stretched more in the second state than in the first state. The arms when extended are spaced from one another sufficiently to permit mounting of the ornamental members on the at least one elastic ring between the arms.

The present invention relates to a wrist encircling folding bracelet comprising a strap and a body connected to the band (2), with a first end module comprising at least two rigid arcuate elements, a reversibly deformable part comprising a multi stable element, the multi stable element assuming a stabilized shape both in a linear orientation and in a rolled-up orientation, and a second rigid module on which the band is arranged, comprising a multi stable element, said multi stable element assuming a stabilized shape both in a linear orientation and in a coiled orientation, and a second rigid module on which said strap is arranged, said strap being freely oscillating with respect to said body.

A tube bar for use in creating an item of permanent jewelry is described, involving a tube bar having a body comprising a precious metal, having a first end and a second end, a cavity extending into the first end, a through hole, perpendicular to the cavity, that passes from one side surface of the body to an opposite side of the body. The cavity extends into the body to a depth beyond the through hole, and the cavity is dimensioned to accept a terminal end of a Band. An item of permanent jewelry incorporating the tube bar and a Band is also described.

A wearable smart band and comprises a fixing band provided so as to be wearable on a joint of a user including a human, an animal, a machine, etc; a receptacle member formed on the fixing band so that a tool, a machine part, a device, and an information device is located, and having an upper part covered by a cover; a flexible band provided on one side of the fixing band, whereof the shape of the fixing band is transformed according to movement of the user's joint; and an inserting and drawing assembly having one end connected to the flexible band and the other end connected to the information device or the cover, wherein the information device or cover is drawn or inserted from or into the receptacle member by the transformation of the flexible band according to the movement of the user's joint.

A jewelry apparatus comprising a base member and a coupling member operably configured for attachment to the base member. The base member having a first prong and a second prong each having a first portion having a first width and a second portion having a second width smaller than the first width. The coupling member comprising a disk member having a first and second side, the first side having a first set of indicia and the second side having a second set of indicia; a first projection extending from the disk member operably configured for attachment to the first prong; and a second projection extending from the disk member operably configured for attachment to the second prong. The disk member is movably coupled to the base member and the coupling member is configured to rotate such that the indicia sets create the visual appearance of both the indicia sets.