A reel assembly operable to be wound by a screen assembly is provided. The reel assembly is received in a frame assembly, and includes a reel, a connector, a limit part, and a spring. The connector is fixedly connected to the frame assembly. The limit part is rotatably connected to the frame assembly. The reel has one end rotatably connected to the connector, and another opposite end fixedly connected to the limit part. The spring has two opposite ends fixedly connected to the connector and the limit part, respectively. A display device and a smart bracelet are further provided.

A buckle includes a folding member linked to a band, a slide plate having a plurality of groove sections provided along the longitudinal direction of the band, a swing arm including an engagement click engageable with any of the groove sections, and a spring that urges the swing arm in a first rotational direction, and the folding member restricts rotation of the swing arm in the second rotational direction when the folding member is accommodated in the buckle cover, and cancels the restriction of the rotation of the swing arm in the second rotational direction when the folding member is detached from the buckle cover.

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.

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.

This application relates generally to various embodiments of a magnetic wristband. More specifically the application describes a design for a magnetic wristband having a number of configurations. In one configuration the wristband is magnetically coupled around a user's wrist. In another configuration the magnetic wristband can be magnetically coupled around an electronic device to which it is attached. In this second described configuration the magnetic wristband acts as a protective cover for the electronic device to which the wristband is attached. In this way a user can reduce the likelihood of damage being inflicted upon the electronic device while it is not being worn.

Watch band comprising lower and upper half band portions connected at a fold portion to surround a watch lug at the fold portion, each comprising a drilled hole for the passage of a double rivet comprising lower and upper bodies, either inserted one inside the other or each inserted into a common tube, the band including, at each double rivet, a snap means for ensuring a reversible axial stop for the lower body with respect to the upper body, comprising either a holding plate aligning lower and upper grooves of the lower and upper bodies, or two lower and upper clip lips of the common tube each clip fitted onto a complementary lower or upper lip of the lower or upper body.

Watch band comprising lower and upper half band portions connected at a fold portion to surround a watch lug at the fold portion, each comprising a drilled hole for the passage of a double rivet comprising lower and upper bodies, either inserted one inside the other or each inserted into a common tube, the band including, at each double rivet, a snap means for ensuring a reversible axial stop for the lower body with respect to the upper body, comprising either a holding plate aligning lower and upper grooves of the lower and upper bodies, or two lower and upper clip lips of the common tube each clip fitted onto a complementary lower or upper lip of the lower or upper body.

A wristwatch strap connector for engagement of either of a two piece watch band formed in two sections, or, a single piece watch band formed in a single section to a wristwatch case. The connectors are employed in pairs and each connector is adapted at a first end to engage one side of the watch band case. Once the connectors are engaged, a user can connect either a one piece or two piece watch band to the wristwatch.

A wristwatch strap connector for engagement of either of a two piece watch band formed in two sections, or, a single piece watch band formed in a single section to a wristwatch case. The connectors are employed in pairs and each connector is adapted at a first end to engage one side of the watch band case. Once the connectors are engaged, a user can connect either a one piece or two piece watch band to the wristwatch.

A wrist-worn pressure sensing device includes a pressure sensor. The wrist-worn pressure sensing device also includes a first strap that sets the position of the pressure sensor on a wearer's wrist and a second strap that engages with the first strap to adjust the overall length of the strap without moving the set position of the pressure sensor on the wearer's wrist.