Apple Watch 3 Might Be Able To Measure Your Respiration Rate

The Apple Watch and Apple Watch 2 are in part health and fitness tracking devices, but each is somewhat limited in those areas. Improvements to the next generation are sure to change that though and Apple may soon give the watch the ability to measure your respiration rate. That’s not a new idea as such, but doing this while there’s movement in the body can compromise the heart rate signal, and Apple’s patent looks to solve that problem by using two light sensors rather than one, then subtracting one from the other to remove any noise from the signal. In a patent spotted by Patently Apple, Apple outlines a system it calls “Measuring Respiration Rate with Multi-Band Plethysmography.”


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