Compared with medical devices can reach more than 90% accuracy. The oxygen sensor chip used in the smart bracelet is reflective, there are two light-emitting diodes in the chip, respectively, the wavelength of 669nm red light and 880nm infrared light to the wrist, the other side of the photoelectric diode is used to receive the reflected light, and through the difference in the intensity of the light emitted and received can be calculated by the saturation of the blood oxygen.
The B6 features a new 1.53-inch flexible curved screen with a resolution of 460*188 pixels, which is a 50 percent increase in viewing area compared to its predecessor. The curved shape makes the bracelet fit better to the wrist and puts less pressure on the wrist.
Expanded Information
The function of measuring blood oxygen saturation first appeared in Huawei's smartwatch, which partnered with the 301 Hospital to **** the same focus on people's heart health and apply the results of medical research on top of the smart wearable device. Blood oxygen saturation can reflect the body's oxygen supply, if the blood oxygen level is low, easy to trigger fatigue easily sleepy, lack of energy, memory loss and other symptoms, long-term insufficient blood oxygen level, but also on the brain, the heart and other organs caused by damage.
This is especially true for snorers, overworkers, the elderly, and those in mountainous/plateau environments where oxygen is scarce. As for accuracy, the test data provided by the bracelet is for reference only, but it does give a rough indication of the problem. Blood oxygen is generally above 90% normal, the higher the better, regularly below 90% should pay attention to rest or recommend checking.
Phoenix - Official answer to the Huawei bracelet B6 blood oxygen saturation monitoring results are accurate