Oxygen saturated clip and bracelet which is good to use

Oxygen saturation clip and bracelet in oxygen saturation clip is good to use. Oxygen saturation clip is a medical device used to measure oxygen saturation, is a small sensor can be clipped on the finger or toe, through the infrared spectroscopy technology to measure the changes in the oxygen content of the blood, oxygen saturation clip regularly monitor oxygen saturation, to help doctors assess the patient's respiratory function. The bracelet is a non-medical device with insufficient precision.