Electrocardiogram-Capable Smartwatches: Assessing Their Clinical Accuracy and Application

Wearable technology has progressed significantly so that today's smartwatches
are able to offer advanced health monitoring functions such as
electrocardiogram (ECG). This study contains data that can be used to
clinically assess the accuracy of four leading smartwatch models: Apple Watch
Series 9, Samsung Galaxy Watch 6, Fitbit Sense 2, and Withings ScanWatch.
Using the standardized protocol of the International Electrotechnical
Commission (IEC 60601-2-25:2011) and a METRON PS-440 patient simulator,
controlled ECG signals were generated and recorded to assess smartwatches
performance against a reference electrocardiograph (Philips TC30). Parameters
such as heart rate (30 to 300 beats per minute), R-wave amplitude (500 to 2000
µV), and ST-segment elevation/depression (-800 to +800 µV) were configured in
the patient simulator and recorded 5 times in all devices. This extensive
dataset provides valuable information on the feasibility of smartwatches as
diagnostic tools, and both their strengths and limitations for clinical and
remote cardiovascular monitoring can be observed.