Apple watch 7 sensor on SpO2 measurement

App & System Services Health & Fitness
nannnn OP
Created Jul ’22
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What are the sensors type for the SpO2 measurement?

Does Watch 7 have the temperature/touch/pressure sensor to detect whether the measuring object is human skin? So as to activate the start of SpO2 measurement?

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Apple watch 7 sensor on SpO2 measurement
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