090c. You don’t want to waste your time with testing 100 smartwatches with countless different testing protocols to find out that your data cannot be reproduced by other scientists?

Rob ter Horst tested 100 smartwatches:

And scientific papers about smartwatches use countless different testing protocols:

90.3 Summary of the testing protocols of different studies

And we do not know of scientists who reproduced these scientific data convincingly. You don’t want to waist your time with things like this?

Choose 3 channel ECG devices based on PiEEG:

with HeartPy:

https://python-heart-rate-analysis-toolkit.readthedocs.io/en/latest

According to the scientific literature, the data measured with this setup should reproducable scientifically for runs on a treadmill up to about 15 km/ h and if intense activities with strong body movements are not investigated, if you stick to the requirements of gold standard for heart rate measurements. You can find the scientific literature about this topic here:

090b. Rob ter Horst: issues of the scientific justification to choose the Polar H10 as a reference device for his tests

And under the tag “PPG” at www.petergamma.org:

https://petergamma.org/category/optical-heart-rate-sensor

Information for product sellers who do stock market speculation and scalping with the products mentioned by Peter Gamma on www.petergamma.org.

According to the little experience of Peter Gamma from www.petergamma.org, many of the products listed here are still full of issues which need to be resolved. If you do stock market speculation and sculping with those you will loose Peter Gamma from www.petergamma.org as a buyer of these products ans as a reviewer. Is this not risky? Will you not loose the majority of your costumers as well? And does society in general not accept stock market speculation and scalping with products as those which are listed here? And will you not be politically incapable of finding a majority of the voters if you do stock market speculation and sculping with the products listed here? And as a consequence will you not be condemned and punished by a political referendum soon? Especially if you do this to a Swiss, since are not majority of Swiss against stock market speculations and sculping with people on a budget? And people in Switzerland are known for a lot of political referendums, since we have direct democracy in this country. And Peter Gamma from www.petergamma.org will fight up to the European Court of Human Rights against people who do stock market speculation and sculping with the products which are listed under www.petergamma.org. And if they do not have yet the legal basis there, he will fight for it.