There is disclosed a smart bracelet including a band having a curved surface in a longitudinal direction; a slit extended from each of both longitudinal ends of the band along the longitudinal direction, divided ends divided by the slit, a coupling hole formed in a lateral surface of the divided end, a hinge pin inserted in the coupling hole, the hinge pin comprising a conductive material, a band printed circuit board disposed in a predetermined portion of the band, the band printed circuit board where an integrated circuit (IC) is loaded, and a link unit connecting the band printed circuit board and the hinge pin with each other.