Is a Cyton 3 channel gold standard ECG device with HeartPy more accurate than a Polar H10?

Last Updated on August 24, 2023 by pg@petergamma.org

If so, we had a new gold standard ECG device for all kind of people. The following paper says the Cyton can be used instead of a device from Adinstruments which costs 15 000 USD for certain applications:

Researchers from the University of Calgary found that a 3-lead ECG device based on the OpenBCI Cyton board can be used for HRV measurements instead of an industry-standard 3 lead ECG device from Adinstruments and costs only about 4%

The Adinstruments Equivital with LabChart software is the only device we know which is sold as «ECG noise and movement artifact free» as shown in this video demonstration, where we see a runner wearing an Adinstruments Equivital:

According to the following table, the equipement shown in the Adinstruments demonstration costs:

Equivital Starter Pack: $ 2701

LabChart 8 Pro software: $ 7809

total 10’510 USD

90.02 Research & medical grade ECG devices which some of those were used to study the accuracy of consumer grade HRMs in different papers

The Adinstruments demonstration video was released in the same year as HeartPy was published:

https://scholar.google.com/citations?user=OOhuA6gAAAAJ&hl=de&oi=sra

In the HeartPy documentation it says, HeartPy can handle with very noisy ECG signals.

The Equivital sensor belt was previously known to have issues with ECG movement artifacts. But this video is a first demonstration that Adinstruments has solved this problem. But how did they solve it? Did Adinstruments simply use HeartPy to make the Equivital ECG noise and motion artifact free? If so, a 3 channel Cyton ECG device with HeartPy should be able to do the same for 370 USD. Developers welcome to show the first YouTube video which shows such a device in comparison with a Polar H10 chest strap.