The present invention relates to a smart bracelet comprising a hand ring body and a central processing unit. The wristband body includes an accommodation space. The central processing unit is disposed in the accommodating space, and is provided with a display module connected to the central processing unit, a semiconductor laser light module and a detecting module, and the semiconductor laser light module is issued for 550 nm. From the laser light of 850 nm wavelength, the detection module is used to detect the physical state of the human body.本創作關於一種智慧手環，其包括一手環本體及一中央處理單元。該手環本體包括一容置空間。該中央處理單元設於該容置空間，並設有與該中央處理單元連接之一顯示模組、一半導體雷射光模組及一檢測模組，該半導體雷射光模組供發出介於550奈米至850奈米波長之雷射光，該檢測模組供檢測人體之身體狀態。
