Published on in Vol 5, No 1 (2020): Jan-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/17355, first published
.
![Measuring Heart Rate Variability in Free-Living Conditions Using Consumer-Grade Photoplethysmography: Validation Study Measuring Heart Rate Variability in Free-Living Conditions Using Consumer-Grade Photoplethysmography: Validation Study](https://asset.jmir.pub/assets/604f67d642f2ec4d0fbc3234345baacb.png 480w,https://asset.jmir.pub/assets/604f67d642f2ec4d0fbc3234345baacb.png 960w,https://asset.jmir.pub/assets/604f67d642f2ec4d0fbc3234345baacb.png 1920w,https://asset.jmir.pub/assets/604f67d642f2ec4d0fbc3234345baacb.png 2500w)
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