A band for a wearable device includes first and second band links. The first band link includes one or more magnetic pins and the second band link includes one or more magnets and one or more apertures. In a first position, the first and second band links mechanically and magnetically couple by the magnet pulling the magnetic pin into the aperture. In a second position, the first and second band links mechanically and magnetically decouple by the magnetic pin being forced from the aperture. In this way, the band links may be easily and quickly coupled to and/or decoupled from each other.

A band for a wearable device includes first and second band links. The first band link includes one or more magnetic pins and the second band link includes one or more magnets and one or more apertures. In a first position, the first and second band links mechanically and magnetically couple by the magnet pulling the magnetic pin into the aperture. In a second position, the first and second band links mechanically and magnetically decouple by the magnetic pin being forced from the aperture. In this way, the band links may be easily and quickly coupled to and/or decoupled from each other.

A jewelry item comprises an elastic element extending over the entire length of the item, a plurality of decorative elements threaded one after the other on the elastic element so as to be slidable with respect thereto, and a plurality of connection elements which are each threaded on the elastic element between a pair of adjacent decorative elements and connect the decorative elements to each other, whereby the adjacent decorative elements are displaceable with respect to each other, sliding on the connection element, between a position of minimum relative distance and a position of maximum relative distance. Each connection element is connected to a first decorative element of the pair of adjacent decorative elements by a first bayonet-type engaging device and to a second decorative element of the pair of adjacent decorative elements by a second bayonet-type engaging device.

A jewelry item comprises an elastic element extending over the entire length of the item, a plurality of decorative elements threaded one after the other on the elastic element so as to be slidable with respect thereto, and a plurality of connection elements which are each threaded on the elastic element between a pair of adjacent decorative elements and connect the decorative elements to each other, whereby the adjacent decorative elements are displaceable with respect to each other, sliding on the connection element, between a position of minimum relative distance and a position of maximum relative distance. Each connection element is connected to a first decorative element of the pair of adjacent decorative elements by a first bayonet-type engaging device and to a second decorative element of the pair of adjacent decorative elements by a second bayonet-type engaging device.

A jewelry item comprises an elastic element extending over the entire length of the item, a plurality of decorative elements threaded one after the other on the elastic element so as to be slidable with respect thereto, and a plurality of connection elements which are each threaded on the elastic element between a pair of adjacent decorative elements and connect the decorative elements to each other, whereby the adjacent decorative elements are displaceable with respect to each other, sliding on the connection element, between a position of minimum relative distance and a position of maximum relative distance. Each connection element is connected to a first decorative element of the pair of adjacent decorative elements by a first bayonet-type engaging device and to a second decorative element of the pair of adjacent decorative elements by a second bayonet-type engaging device.

A jewelry item comprises an elastic element extending over the entire length of the item, a plurality of decorative elements threaded one after the other on the elastic element so as to be slidable with respect thereto, and a plurality of connection elements which are each threaded on the elastic element between a pair of adjacent decorative elements and connect the decorative elements to each other, whereby the adjacent decorative elements are displaceable with respect to each other, sliding on the connection element, between a position of minimum relative distance and a position of maximum relative distance. Each connection element is connected to a first decorative element of the pair of adjacent decorative elements by a first bayonet-type engaging device and to a second decorative element of the pair of adjacent decorative elements by a second bayonet-type engaging device.

Bracelet having adjustable length, which includes an adjusting link (6) with two parallel transverse articulation pins (5, 7), a first (5) being fixed and the second (7) being able to pivot with respect to the first (5) so as to reverse the respective positions of the pins and respectively create two, short and long, configurations, and an end link (8) having a first end (8i) pivoted on the second pin (7) and a second end (8j) designed to accept the fixing of the end of one bracelet strand, this second end (8j) having at least one first cutout (8e) designed to house a center link element (10a) of a link at the end of said bracelet strand, and a transverse second cutout (8c) arranged between the two ends (8i, 8j) of the end link (8) to house the first pin (5) of the adjusting link (6) in the short configuration.

A first connector assembly may be connectable to a second connector assembly using a sliding attachment process, in which a front portion of the first connector assembly is inserted into an end of a slot in the second connector assembly and slides laterally along the slot until electrical contacts on the two connector assemblies are aligned. Electrical contacts of the first connector assembly may be biased proud to make contact with recessed electrical contacts in the second connector assembly. A retraction mechanism may be provided to retract the electrical contacts of the first connector assembly during lateral sliding. An interlock mechanism may be provided to prevent unwanted operation of the retraction mechanism.

A first connector assembly may be connectable to a second connector assembly using a sliding attachment process, in which a front portion of the first connector assembly is inserted into an end of a slot in the second connector assembly and slides laterally along the slot until electrical contacts on the two connector assemblies are aligned. Electrical contacts of the first connector assembly may be biased proud to make contact with recessed electrical contacts in the second connector assembly. A retraction mechanism may be provided to retract the electrical contacts of the first connector assembly during lateral sliding. An interlock mechanism may be provided to prevent unwanted operation of the retraction mechanism.

Systems and methods for dynamically adjusting the fit of a wearable electronic device are disclosed. In many embodiments, a tensioner associated with a wearable electronic device can control one or more actuators that are mechanically coupled to either the housing or to a band attached to the wearable electronic device. In one example, in response to a signal to increase the tightness of the band, the tensioner can cause the actuator(s) to increase the tension within the band.