![How moxy is different than a pulse oximeter](https://my.moxymonitor.com/hs-fs/hub/188620/file-520478691-jpg/images/how-moxy-is-different-than-a-pulse-oximeter.jpg)
We've gotten a lot of questions recently about what makes the Moxy Monitor different from a Pulse Oximeter. And for athletes looking to learn more about there bodies, that is a great question. The main difference is that the Moxy Monitor measures muscle oxygen saturation (SmO2) in the capillaries while a pulse oximeter measures hemoglobin oxygen saturation (SpO2) in the arteries. That means that a pulse oximeter demonstrates only the saturation of the oxygen leaving your lungs, while Moxy monitors the percentage of hemoglobin and myoglobin that is carrying oxygen to give a more comprehensive look at the interworkings of your body as you exercise.
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![Intro to Moxy eBook](https://no-cache.hubspot.com/cta/default/188620/e0f175e1-2e36-46cf-8b0d-30d61668609c.png)