Evaluating the accuracy of the Biostrap wrist-worn Photoplethysmography sensor in measuring resting heart rate versus a single-lead ECG device

Introduction: Photoplethysmography (PPG) is a popular method for determining heart rate (HR) but the accuracy of most wrist-worn heart rate monitoring using PPG monitors is still uncertain. This study compares the Biostrap EVO sensor's PPG-derived resting heart rate (RHR) with a medically certified ECG device as a gold standard. Methods: This study included 12 healthy adults with a mean (SD) age of 44 (14.4) years, BMI of 24.1 (3.9), and 9 females (75 percent ). Participant ECG recordings were collected with the MyDiagnostick for 1 minute while their heart rate was recorded by a Biostrap EVO wrist-worn device (Biostrap USA LLC, Duarte, USA). A Bland-Altman plot was constructed to show heart rate agreement. Discussion: The Biostrap EVO wrist-worn sensor's PPG-derived resting heart rate was compared with a single-lead ECG. The PPG signal and ECG recording were significantly comparable in terms of resting heart rate. The readings were unaffected by BMI, age, or gender. These findings open the door for long-term remote patient monitoring using a PPG-enabled wearable device. Conclusion: Despite the study's limitations, we can say that the Biostrap EVO wrist-worn wearable with PPG technology can accurately determine RHR