Does Rob ter Horst not harm the scientific community by testing smartwatches & not choosing methods at the highest level as for instance treadmill protocols up to 15 km/h & test smartwatches against clinical & research grade 3 channel ECG devices?

Is it not also for scientists difficult to find out how accurate smartwatches are? The optical heart rate monitors of smartwatches or sensors as the Polar H10 where described by sports watch reviewers as very accurate if not most accurate heart rate monitors. But where have we scientific validation papers which proof this? Peter Gamma …