Can your smartwatch track oxygen in lung disease? study finds out

This study checks if smartwatches can accurately measure oxygen levels in people with pulmonary hypertension, a condition that affects the lungs and heart. Twenty adults will have their oxygen levels checked by a smartwatch, a finger clip, and a blood test at rest, after exercise, and while breathing low oxygen through a mask. The goal is to see if smartwatches are reliable enough for home monitoring.