Tools: iPhone 14 Pro, Watch? App version: 1. 1.2.
Steps:
1. Select the observation option.
2. Open the interface and click Blood Oxygen.
3. Set here to start blood oxygen measurement.
Is it reliable to measure blood oxygen with a smart watch?
Blood oxygen measurement by smart watch is not reliable. 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.