@sinabhfuil A lot of pulse oxymeters get a false reading from dark skin, it’s not just Apple. A lot of people with low blood oxygen levels died because of it in the US at the start of the pandemic. It’s still a problem now. The teams developing these technologies often lack POC on them and it never occurs to them to try it out on different skin tones. It’s another effect of systemic racism.
*edited for typo