Which devices can meditators choose who want to study the effect of practicing mediation on their resting heart rate?

Last Updated on December 9, 2023 by pg@petergamma.org

Garmin watches track the resting heart rate as a moving average in Garmin Connect from the data of the last 7 seven days. Unfortunately we do not know of a scientific validation paper about this parameter which can be measured with Garmin watches.

Alternatively meditators can measure a the Resting ECG with the GE Case System as shown by
cardiovascular and exercise physiologist Dr. Matthews with the GE Case System:

We haven’t checked if the GE Case System offers a validation paper for Resting ECG. But should a device with a sale price of 13`249 USD not offer such a validation paper?

https://www.cardiologyshop.com/ge-marquette-stress-systems.html

If not is this device worth the money?