How Smartwatches Are Catching Sleep Apnea Early

Sleep apnea affects an estimated 936 million people worldwide, yet most cases go undiagnosed. This episode explores how consumer smartwatches — with their built-in blood oxygen sensors and heart rate monitors — are turning into frontline screening tools for the condition. We break down the science behind overnight SpO2 dips, look at how the latest watch algorithms flag potential apnea events, and compare that to a formal sleep study. We also hear how one tech journalist's own watch caught his severe apnea before his doctor did, and why experts say these devices aren't ready to replace clinical diagnosis — but could reduce the millions of undiagnosed cases. Lucas and Luna discuss the current accuracy data, the limitations, and what to do if your watch flags something concerning. If you've ever wondered whether that 'poor sleep' warning is just a gimmick or a genuine health signal, this episode explains exactly what the sensors can and can't tell you. #SleepApnea #Smartwatch #WearableTech #HealthTech #SpO2 #BloodOxygen #SleepTracking #HeartRate #OSA #SleepHealth #TechJournalism #MedicalTech #ConsumerDevices #HealthScreening #TechPodcast #Business #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo