Comparative Analysis of Vital Signs Measured Using a Smartwatch and Conventional Medical Devices: A Cross-Sectional Study on Digital Innovation in Healthcare

Background: Smartwatch devices that leverage digital technology for blood pressure (BP) measurement are increasingly being recognized as valuable instruments for managing hypertension and heart failure. Continuous blood oxygen saturation (SpO2) monitoring is critical for patients experiencing low blood oxygen levels. The advent of smartwatches has introduced an innovative method for monitoring these levels; however, it is essential to understand their accuracy and limitations to determine their suitability for clinical applications.

Material and Methods: A total of 70 patients, consisting of 27 males and 43 females with a mean age of 28.7 ± 13.3 years, were recruited for this study. Each subject underwent observed single measurements using a smartwatch device, which was subsequently compared to readings taken by an auscultatory sphygmomanometer and fingertip pulse oximetry. Both monitoring devices for BP measurements were positioned concurrently on the same arm throughout the monitoring period.

Results: The analysis indicated that the systolic values of the infrared BP monitor recorded on smartwatches displayed a mean difference of 5.82 mmHg compared to those obtained by auscultatory sphygmomanometry. Similarly, diastolic values exhibited a mean difference of 5.62 mmHg. Furthermore, the study revealed a mean difference of -0.67% between the SpO2 readings from smartwatches and those acquired from fingertip pulse oximetry.

Conclusion: The Fire-Boltt smartwatch has demonstrated efficacy in monitoring and managing BP and SpO2, with recorded values closely aligning with those derived from standard clinical methodologies. These devices possess significant potential for telemetric treatment monitoring, enhancing patient care in outpatient settings.