It looks like a watch and can monitor the condition by measuring changes in bioelectrical resistance. Monitoring throughout the day. <br />Bio-resistance is the response of biological tissues or organisms to weak external currents and reflects the electrical characteristics of living objects. Blood glucose levels affect blood vessel resistance. Put on the device, it can send a weak current to the arm through the skin and measure the response of the subcutaneous blood vessels, and analyze and compare the changes in the blood vessel bioelectrical resistance to understand the blood glucose status, which has not been adopted by the majority of patients.