Last Updated on February 4, 2023 by pg@petergamma.org
We could not find standard test protocols in the scientific papers about sports sensors:
We could not find standard reference devices:
And methods:
We found strong fluctuations in the accuracy of the different Apple watch models, which does not correlate with the model type. A newer Apple watch model does not correlate with higher accuracy:
We do not know of any scientific papers which confirm results from other papers about accuracy of sports heart rate monitors in a precise way.