Measurement of Heart Rate Using the Polar OH1 and Fitbit Charge 3 Wearable Devices in Healthy Adults During Light, Moderate, Vigorous, and Sprint-Based Exercise: Validation Study.
David Joseph MuggeridgeKirsty HicksonAimie Victoria DaviesOonagh M GigginsIan L MegsonTrish GorelyDaniel R CrabtreePublished in: JMIR mHealth and uHealth (2021)
Compared with our criterion device, Polar OH1 was accurate at assessing heart rate, but the accuracy of Fitbit Charge 3 was generally poor. Polar OH1 performed worse during trial 2 compared with the activities in trial 1, and the validity of the Fitbit Charge 3 device was particularly poor during our cycling exercises.