A child safety assembly includes a wristband that is selectively worn around a child's wrist. A lock is movably coupled to the wristband and the lock is selectively manipulated. The lock is selectively positioned in a locked position to retain the wristband on the wrist. The lock is selectively positioned in an unlocked position to facilitate the wristband to be removed from the wrist. An alert unit is coupled to the wristband and the alert unit is in thermal communication with the wristband's environment. The alert unit selectively emits an audible alarm and the alert unit is in wireless electrical communication with an electronic device. The alert unit emits the audible alarm when the alert unit detects a temperature of the wristband's environment falls below or rises above a trigger temperature. In this way the alert unit alerts a caregiver to a potential hazard with respect to the child.

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.

Disclosed is wristband and wrist wearable device, including: a wristband body portion, one end is connected to one end of a device body of a wrist wearable device, and the other end is a free end; and a memory metal portion, which is arranged on the wristband body portion and has an arc-shaped memory state in a natural state, so that the wristband body portion is naturally maintained in an arc shape. The memory metal portion comprises a strip-shaped memory metal piece including a first metal segment, a second metal segment, and a third metal segment that are sequentially connected, the first metal segment and the third metal segment extend along a length direction of the wristband body portion in parallel, the second metal segment is arranged at the free end of the wristband body portion and is provided with at least one bent portion.

A jewelry clasp is disclosed and includes a first part including a first magnet, a first groove and a first catch and a second part including a second magnet, a second groove and a second catch. The first and second magnets generate an attractive force holding the first part to the second part, the first catch is received in the second groove and the second catch is received in the first groove. A relief disposed on at least one of the first part and the second part at an interface between the first part and the second part is provided to aid in releasing the first part from the second part.

A watch includes a case having a dial, a first strap attached to a first end of the case, the first strap having a plurality of adjustment holes, a second strap attached to a second end of the case, the second strap having a buckle for mating with at least one of the adjustment holes, an adjustable loop disposed over the second strap and having a base portion and a top plate coupled to the base portion and defining a gap therebetween, the adjustable loop being transitionable between a first condition where the base portion and the top plate are relatively far from one another and the gap has a first length, and a second condition where the base portion and the top plate are relatively close to one another and the gap has a second length, the second length being less than the first length.

A communication bracelet and method of using the same. The method includes providing a bracelet having a bracelet band. The bracelet band having a top surface and indicia on the top surface. The indicia at least including an indicator that a person wearing the bracelet is opening to talking with another.

A child safety assembly includes a wristband that is selectively worn around a child's wrist. A lock is movably coupled to the wristband and the lock is selectively manipulated. The lock is selectively positioned in a locked position to retain the wristband on the wrist. The lock is selectively positioned in an unlocked position to facilitate the wristband to be removed from the wrist. An alert unit is coupled to the wristband and the alert unit is in thermal communication with the wristband's environment. The alert unit selectively emits an audible alarm and the alert unit is in wireless electrical communication with an electronic device. The alert unit emits the audible alarm when the alert unit detects a temperature of the wristband's environment falls below or rises above a trigger temperature. In this way the alert unit alerts a caregiver to a potential hazard with respect to the child.

A set of watch straps include a first strap, the first strap including a first band, a first adapter, and a first lug connected in series, and a second strap, the second strap including a second band, a second adapter, and a second lug connected in series. The first lug is configured to slide into a first strap receiving groove of the watch, and the second lug is configured to slide into a second strap receiving groove of the watch. At least one of the first strap and the second strap is reversible.

A two-part watch strap (1) including a clasping part (2) and a clasped part (3). The clasping part (2) includes: a clasping-part watch-attaching end; a clasping end opposite the clasping-part watch-attaching end; a strap/band/bracelet portion (4) extending between the watch-attaching and clasping ends of the clasping part (2); and a groove (11) arranged in the strap/band/bracelet portion (4). The clasped part (3) includes: a clasped-part watch-attaching end; a free end (9) opposite the clasped-part watch-attaching end; a strap/band/bracelet portion (6) extending between the watch-attaching and free ends of the clasped part (3); and a protruding portion (10) adjacent to, near, or at the free end (9). The protruding portion (10) is configured to engage with and at least partially lock into the groove (11) of the clasping part (2) so as to secure the free end (9) of the clasped part (3) to the clasping part (2).

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.