Polysomnography, also called a sleep study, is a comprehensive test used to diagnose sleep disorders. Polysomnography records your brain waves, the oxygen level in your blood, heart rate and breathing, as well as eye and leg movements during the study.
Polywatch YH-600 will bring you a whole new experience through the design of a wristwatch and simple operation.
After nearly 20 years of continuous research, we have developed a full digital series of sleep monitoring products.
