An Investigation of Heartrate Sensing Accuracy by Wrist-Worn Fitness Tracking Devices

Preliminary results of assessing the accuracy of heartrate measurement by four wrist-worn fitness tracking devices (WFT) during waking and stationary biking in five healthy subjects (2F; age 26.4±3.20 years; BMI 24.7±1.92 kg/m
²
) are reported. The results reveal that the accuracy varies depending on the WFT and exercise mode.