This would be great if it works. Could you say more about why you think it does? The website says it measures at the finger, and my understanding is the signal is fuzzy by that point.
I’m not really an expert on HRV, I just trusted the validation study here:
https://www.researchgate.net/publication/315059917_Comparison_of_Heart_Rate_Variability_Recording_With_Smart_Phone_Photoplethysmographic_Polar_H7_Chest_Strap_and_Electrocardiogram_Methods
This would be great if it works. Could you say more about why you think it does? The website says it measures at the finger, and my understanding is the signal is fuzzy by that point.
I’m not really an expert on HRV, I just trusted the validation study here:
https://www.researchgate.net/publication/315059917_Comparison_of_Heart_Rate_Variability_Recording_With_Smart_Phone_Photoplethysmographic_Polar_H7_Chest_Strap_and_Electrocardiogram_Methods