Atrial fibrillation (AF) is the most common type of arrhythmia, characterized by irregular ventricular responses due to chaotic electrical activity in the atria [1]. AF is relatively prevalent, observed in approximately 1–2% of the general adult population, especially the elderly [1]. It is known as a critical condition due to being a major cause of stroke and heart failure [2, 3]. Of note, the prevalence of AF is reported to be high at 2.05% among agricultural populations in rural mountainous areas [4]. However, residents of these areas are recognized to have less opportunity to receive full disease management because of restricted access to cardiac specialists, travel distance, insufficient testing opportunities, insufficient understanding of the disease, and inadequate self-management support [4–6]. There is a demand for a simple method to detect AF among such residents.