Samsung launches Health Monitor app in SG, bringing SpO2 tracking to Galaxy Watch3 (updated) - HardwareZone.com.sg
Amazon.com: SAMSUNG Galaxy Watch Active 2 (40mm, GPS, Bluetooth) Smart Watch with Advanced Health Monitoring, Fitness Tracking, and Long Lasting Battery, Aqua Black (US Version) : Electronics
Samsung Galaxy Watch Active2 and Watch3 get system improvements with new updates - GSMArena.com news
Galaxy Watch 4/5 - How to Measure SpO2 (oxygen saturation) - YouTube
Samsung, Re-enable SpO2 on Galaxy Watch Active, it might save lives now. : r/GalaxyWatch