North America dominates the Foot SpO2 Sensor market with a 35% share, driven by advanced healthcare infrastructure, high adoption of remote patient monitoring, and a growing aging population. Europe follows at 25%, fueled by stringent regulatory frameworks promoting non-invasive diagnostics, increased investments in telehealth, and a rising prevalence of chronic diseases. The Asia Pacific region is the fastest-growing market, with 20% CAGR, attributed to expanding healthcare access, rising diabetes and cardiovascular disease prevalence, and government initiatives to modernize rural healthcare systems.