Apple Watch contains a pulse oximeter

Discussion in 'Apple Watch' started by wlow3, Apr 24, 2015.

  1. wlow3 macrumors regular

    Sep 9, 2008
  2. John6Plus macrumors 6502


    Sep 19, 2014
    Holland, MI
    That is pretty awesome. I hope it's activated at some point.
  3. ivandr, Apr 24, 2015
    Last edited: Apr 24, 2015

    ivandr macrumors regular

    Jul 1, 2010
    I don't know if I would say they found a discrete (ie separate) pulse ox... From reading their teardown, it seems like the way Apple determines heart rate is based on a device that is technically capable of measuring pulse ox in addition to heart rate. I know its basically like saying they found a pulse ox, but that could be construed to mean that they found an additional (previously unknown) sensor that can measure oxygen in the blood.

    "Apple's heart rate monitor is actually a plethysmograph—it looks and acts like a pulse oximeter, but Apple isn’t claiming it can measure your blood oxygen level." (Quote from iFixit teardown page)

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