Forerunner 245/245 Music Owners Manual - Getting Pulse Oximeter Readings
Garmin Forerunner® 255 | Running Smartwatch
Forerunner 245's pulse ox inaccurate? 90% is not normal for someone who doesn't smoke and who's not out of breath. Plus most of the time they struggle to get a reading. What's
SpO2 and pulse ox wearables: Why wearables are tracking blood oxygen - Wareable