Breathe easier with built-in oxygen measurement
Galaxy Watch3 uses red LED and infrared rays to estimate your SpO2 levels, or the amount of oxygen in your bloodstream. Because this oxygen saturation is directly linked to physical performance, you can use Galaxy Watch3 to push your routine to the next level.
*Feature not supported in Japan, Angola, South Africa, Thailand, Iran, Libya, France, Algeria, and Brazil. **Availability may vary by country or region. ***SpO2 is defined as saturation of percutaneous oxygen. Normal levels in humans are measured at approximately 95-100%. Factors like vigorous exercise, the amount of oxygen in the air, your elevation, and various health conditions can all result in lower readings.