Why are the results shown in Rob ter Horsts accuracy mega plots not reproduced in scientific papers – because his results cannot be reproduced?

We do not know of scientific papers which would have reproduced Rob ter Horsts findings about the accuracy of smartwatches: We do also not know of a scientific paper which would show that watches from Google are more accurate than apple watches: We suppose that Rob ter Horsts smartwatch accuracy test results cannot be reproduced. …