Multifunctional wrist strap

The utility model discloses a multifunctional wrist strap, which comprises a watchband, a fixing piece, a wrist strap main body, a protective shell, a sealing tube, a transformer, a battery and a maincontrol chip, the protective shell is arranged at the periphery of the wrist strap main body; a display screen is arranged on the surface of the wrist strap main body; a turntable is arranged outsidethe illuminating lamp; the first support leg and the second support leg are lapped on the periphery of the constant-value resistor; the sealing tube, the transformer, the battery and the main controlchip are all arranged in the wrist strap main body; buffering pads are arranged at the left and right ends of the sealing pipe. The periphery of the sealing pipe is sleeved with a pair of rubber blocks, and a coil is wound between the rubber blocks; two ends of the coil are connected with a transformer which is electrically connected with the battery; the battery is electrically connected with the main control chip; the se