Fimiarz, K.J. et al. 2026. ARE SMARTWATCH-BASED BLOOD PRESSURE MEASUREMENTS CLINICALLY RELIABLE? A NARRATIVE REVIEW OF CUFF-BASED AND CUFFLESS TECHNOLOGIES (2020-2026). International Journal of Innovative Technologies in Social Science. 5, 2(50) (Jun. 2026). DOI:https://doi.org/10.31435/ijitss.2(50).2026.5455.