China's "novel coronavirus Diagnosis and Treatment Plan" pointed out that in the resting state, when the oxygen saturation is lower than 93%, it can be judged as severe COVID-19;
High-risk groups of severe/critical types include:
Older people over 60 years old;
Patients with cardiovascular and cerebrovascular diseases, chronic lung diseases, diabetes, chronic liver and kidney diseases, tumors and other basic diseases;
Immunodeficiency;
Obesity;
Women in the third trimester and perinatal period;
Heavy smoker.
Tip: Smart watches/bracelets cannot replace oximeters!
It can have the function of health monitoring, but it is for reference only and cannot be used as medical treatment. There is no problem with the function of measuring blood oxygen in sports watches at ordinary times, but there is definitely a gap compared with professional medical devices such as oximeter. The function and data accuracy of smart wearable devices can be used as daily life health monitoring and medical auxiliary data devices, such as continuous monitoring of heart rate, observation of heart rate variability, respiratory frequency, blood oxygen saturation, skin temperature and even blood pressure monitoring, etc., which have practical applications.