Is the health test of intelligent massage chair accurate?

Many high-end massage chairs in the market have introduced the function of health detection, which can detect body temperature, blood oxygen and fatigue index. For example, Aojiahua's high-end massage chair claims that as long as you gently hold the health check handle, the fatigue state will be clear at a glance. There is a health detection module of Lingtuo Technology, and many brands of products are also in use, and the measured data is still infinitely accurate.