Published on in Vol 6, No 12 (2022): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/37885, first published
.
![Comparing a Fitbit Wearable to an Electrocardiogram Gold Standard as a Measure of Heart Rate Under Psychological Stress: A Validation Study Comparing a Fitbit Wearable to an Electrocardiogram Gold Standard as a Measure of Heart Rate Under Psychological Stress: A Validation Study](https://asset.jmir.pub/assets/81744bf22825c41e634c273cade0c54e.png 480w,https://asset.jmir.pub/assets/81744bf22825c41e634c273cade0c54e.png 960w,https://asset.jmir.pub/assets/81744bf22825c41e634c273cade0c54e.png 1920w,https://asset.jmir.pub/assets/81744bf22825c41e634c273cade0c54e.png 2500w)
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