A smart ring is configured harvest mechanical energy using piezoelectricity. The smart ring includes a ring-shaped housing, a power source disposed within the ring-shaped housing, and a charging circuit. The charging circuit includes a piezoelectric harvesting element, and is configured to charge the power source when user motion causes a mechanical deformation in the piezoelectric harvesting element. The smart ring further includes a component, disposed within the ring-shaped housing and configured to draw energy from the power source, and further configured to perform at least one of: i) sense a physical phenomenon external to the ring-shaped housing, ii) send communication signals to a communication device external to the ring-shaped housing, or iii) implement a user interface.

A smart ring is configured harvest mechanical energy using piezoelectricity. The smart ring includes a ring-shaped housing, a power source disposed within the ring-shaped housing, and a charging circuit. The charging circuit includes a piezoelectric harvesting element, and is configured to charge the power source when user motion causes a mechanical deformation in the piezoelectric harvesting element. The smart ring further includes a component, disposed within the ring-shaped housing and configured to draw energy from the power source, and further configured to perform at least one of: i) sense a physical phenomenon external to the ring-shaped housing, ii) send communication signals to a communication device external to the ring-shaped housing, or iii) implement a user interface.

Jewelry items having at least one rotating ornament to capture a wearer's or viewer's attention are disclosed. The jewelry item may be a ring or pendant having at least one axle. At least one ornament may be coupled about the axle and the ornament may be configured to spin or rotate around the axle as well as slide along the length of the axle. At least one prong may be coupled to the body of the jewelry item to hold a stone in a position above the axle and rotating ornaments.

A ring with a rotation and a lock function to display multiple anniversaries, the ring comprising: a main ring including engagement areas and distant areas between the engagement areas; a sub ring rotatably engaged with the main ring, and engagement members positioned between the main ring and the sub ring, wherein the subring includes a receiver receiving the engagement member and including a first to fourth side with an opening area; wherein a length of the opening area is shorter than that of the first side; wherein the engagement member is made of elastic materials and positioned in the receiver; wherein when the opening area is aligned with the engagement groove area, the engagement member is protruded from the receiver and engaged with the engagement groove; wherein when the opening area is aligned with the distant area, the engagement member is inserted in the receiver.

An interchangeable piece of jewelry including a base and a head mount. The base includes an inner wall that defines a receptacle. The head mount includes a setting and an insert, the setting configured to retain a jewel therein and the insert being dimensioned to sit within the receptacle of the base. When the insert rests within the receptacle, an outer wall of the insert at a distal end contacts the inner wall of the receptacle such that the head mount is releasably secured within the receptacle, and the outer wall of the insert that is adjacent a proximal end and within the receptacle is spaced apart from the inner wall.

A metal accessory having a non-contact communication function, includes: an integrated circuit element (IC chip) for control, capable of performing non-contact short-range wireless communication with an external terminal; a loop antenna with a predetermined length, having both ends connected respectively to both ends of the integrated circuit element for control; and a body part, which is made of a metal or precious metal material, is formed into a loop shape having a through hole formed through the center thereof, and has a slit formed by cutting a partial section of the loop. The integrated circuit element for control and the loop antenna are provided inside the body part, the loop antenna is wound several times along the loop-shaped body part, and a portion of the loop-shaped body part is completely cut by the slit.

A smart ring charging system comprises one or more permanent magnets and a smart ring. The smart ring includes a ring-shaped housing, a power source disposed within the ring- shaped housing, and a charging circuit. The charging circuit includes an induction coil, and is configured to charge the power source when user motion changes magnetic flux from the one or more permanent magnets through the induction coil. The smart ring further includes a component, disposed within the ring-shaped housing and configured to draw energy from the power source, and further configured to perform one or more of the following operations: i) sense a physical phenomenon external to the ring-shaped housing, ii) send communication signals to a communication device external to the ring-shaped housing, and iii) implement a user interface.

A wearable device includes an annular-shaped wearing member and a first coil. The annular-shaped wearing member includes an outer annular surface, the first coil is accommodated inside the annular-shaped wearing member, and a laying surface of the first coil is arranged along a circumferential direction of the annular-shaped wearing member. An electronic device includes a second coil. In a case that the outer annular surface partially abuts against the electronic device, the first and second coils are disposed opposite to each other, and the first and second coils in an energized state generate magnetic field lines in a same direction. In a wearable system of the embodiments of the present disclosure, the wearable device can be charged while the electronic device is being used, which improves convenience of use of the wearable device.

A smart ring includes a body including flexible material, a first part, a second part removably connected to the first part, and at least one pair of break-away portions disposed within the body separate from the first part and the second part. One or more of a battery, a charging unit, a processor unit, a user input unit, a communication unit, a memory unit, at least one sensor unit, an output unit or a user input unit is disposed in or on one of the first part and the second part. Each of the break-away portions of the pair of break-away portions is removable from the other break-away portion upon movement of one break-away portion in a direction away from the other break-away portion.

A wearable payment device, such as a finger ring worn by a user, communicates payment data to a payment reader that uses the payment data in order to request a payment transaction. Such wearable payment device may be conveniently carried by and accessible to the user such that utilization of the payment device for the payment transaction is less burdensome for the user, thereby encouraging use of the payment device for payments. Indeed, in some cases, such as when the payment device is implemented as a finger ring or other type of jewelry, the user may be encouraged to carry the payment device in an exposed manner such that it is readily available for the payment transaction without the user having to search in a wallet, pocket, or purse.