Smart wearable devices can be used for health monitoring of daily life, and can also provide auxiliary data of daily physical condition when seeking medical treatment. Smart watches and bracelets have no problem in measuring blood oxygen in normal use, but there is still a gap compared with professional medical equipment such as oximeter. It is not recommended to use them as medical equipment. The actual testing should be based on doctors or professional medical equipment.
For the measured value of blood oxygen saturation, the value detected by home oximeter is more accurate than that of smart wearable device. General household oximeters are registered with the words "medical devices", that is to say, they have medical device production licenses, that is, these products have passed clinical experiments. Smart watches and bracelets are electronic products, which can be produced and sold without clinical trials and registration by relevant departments.
Blood oxygen monitoring technology has been relatively mature since the 1970s, and the technical threshold is low, but this does not mean that the blood oxygen monitoring technology of smart watches has reached the medical level.
Moreover, wrist movement, skin temperature, fat thickness, blood vessels and other factors will affect the accuracy of blood oxygen monitoring of smart watches. Therefore, the monitoring accuracy of smart watches is theoretically not as high as that of medical oximeter measuring fingertips.
Matters needing attention in using pulse oximeter:
1, using a pulse oximeter approved by the Drug Administration.
2. Strictly follow the instructions provided by the manufacturer.
3. Keep your hands warm and relaxed when measuring.
4. When measuring, the finger should not be higher than the heart level.
5. Remove the nail polish from your fingers.
6. Keep sitting still when measuring, and don't move the body part where the pulse oximeter is located.
7. Wait a few seconds until the reading stops changing to get a stable number.
8. Record the measured pulse oxygen saturation value, as well as the measurement date and specific time for dynamic observation.