The point is that a machine that doesn't compensate for melanin content will work for no one. How black are we talking about? Kamala Harris or Lupita Nyong'o? Who are you going to calibrate for?

[–] AbidanYre@lemmy.world 0 points 3 days ago* (last edited 3 days ago)

No, the point is that they're calibrated for the people who they were tested on/made by and that the vast majority of the population isn't going to pay extra for a feature they are never going to need. It's not like the $20 finger clip you got at CVS is a piece of lab equipment that's being regularly recertified by an expert. As long as it says something over ~97% most people are happy and move on with their day.