Rob ter Hort – a scientist who makes other scientists suffer & misleads those

Last Updated on July 29, 2026 by pg@petergamma.org

For years I was interested in smartwatches. And especially if they can be used for scientific studies. Statements of DC Rainmaker and 5 k Runner about smartwatch accuracy made us curious. How accurate are these smartwatches in reality?

But what was the result of this? Rob ter Horst?

But is review about the Polar H10 made us suffer. The Polar H10 for scientists? Who uses this? This made us write a review:

090. Review of Accuracy Studies of Consumer Grade Heart Rate Monitors: Methods, Testing Protocols, Reference Devices

After reviewing physiological mulitsensor device for many years, we came to the conlusion that heart rate measurement below 3 channel ECG gold standard is a now go for us personally

And really good data come only from treadmills like the cs 200 from schiller:

Instead of making people believe the smartwatches are super highly accurate as a full-time job, why not to start building open source hard and software for everyone?