https://pubmed.ncbi.nlm.nih.gov/31004219/ Rob ter Horst recommended in one of his videos the Polar H10 with 99.6 signal quality as the “gold standard in research”. https://pubmed.ncbi.nlm.nih.gov/2720055/ Why do sports scientists choose a Polar H10 chest strap as their «gold standard» device, which cardiologists and physiologists do not accept as a gold standard device, since it does not …