How Wearable Blood Oxygen Sensors Evolved Beyond COVID

Episode 21 of The Wearable Tech Podcast explores the journey of SpO2 sensors from hospital pulse oximeters to wrist-worn health tools. Lucas and Luna examine how Apple, Garmin, and Masimo turned a single-number metric into a multi-signal wellness indicator, covering the 2024 Masimo lawsuit outcome, the FDA's 2025 clearance of watch-based oxygen monitoring for COPD, and the latest research linking nocturnal desaturation to sleep apnea detection. They discuss why raw SpO2 data can mislead consumers without context and how next-gen wearables are adding perfusion index and plethysmograph waveforms. Specific examples include the 2023 Stanford study showing consumer watch accuracy within 2% of medical-grade devices and the 2025 Withings ScanWatch 2 implementation. The hosts close on whether SpO2 is becoming table stakes or a genuine health breakthrough. #WearableTech #SpO2 #BloodOxygen #AppleWatch #Garmin #Masimo #PulseOximetry #HealthTech #COPD #SleepApnea #FDA #Withings #Wearables #Podcast #Technology #FexingoBusiness #BusinessPodcast #HealthInnovation Keep every episode free: buymeacoffee.com/fexingo