Understanding Pulse Ox | You've heard of Pulse Ox, but what exactly does it do? Pulse oximeter sensors in Garmin watches measure SpO2, the % of oxygenated blood in your... | By
![Refurbished: Garmin fnix 7X - Sapphire Solar Edition - Heart Rate Monitor, Pulse Oximeter Sensor, Barometer, Altimeter, Digital Compass, Gyro Sensor, Accelerometer, Thermometer - Clock Display, Alarm, Timer, ... - Newegg.com Refurbished: Garmin fnix 7X - Sapphire Solar Edition - Heart Rate Monitor, Pulse Oximeter Sensor, Barometer, Altimeter, Digital Compass, Gyro Sensor, Accelerometer, Thermometer - Clock Display, Alarm, Timer, ... - Newegg.com](https://c1.neweggimages.com/productimage/nb640/A22FD2210190XKH5N69.jpg)
Refurbished: Garmin fnix 7X - Sapphire Solar Edition - Heart Rate Monitor, Pulse Oximeter Sensor, Barometer, Altimeter, Digital Compass, Gyro Sensor, Accelerometer, Thermometer - Clock Display, Alarm, Timer, ... - Newegg.com
![Why Pulse Oximeter sp02 works at night only from 00 - 04 h - Forerunner 945 - Running/Multisport - Garmin Forums Why Pulse Oximeter sp02 works at night only from 00 - 04 h - Forerunner 945 - Running/Multisport - Garmin Forums](https://forums.garmin.com/resized-image/__size/1280x960/__key/communityserver-discussions-components-files/400/Screenshot_5F00_20190609_2D00_191504_5F00_Connect.jpg)
Why Pulse Oximeter sp02 works at night only from 00 - 04 h - Forerunner 945 - Running/Multisport - Garmin Forums
![What does your SPO2 look like during sleep? I thought mine was just inaccurate but I'm starting to suspect sleep apnea. : r/Garmin What does your SPO2 look like during sleep? I thought mine was just inaccurate but I'm starting to suspect sleep apnea. : r/Garmin](https://preview.redd.it/what-does-your-spo2-look-like-during-sleep-i-thought-mine-v0-kvnxhcho2lz91.jpg?width=640&crop=smart&auto=webp&s=d367e5ff0fbf06828306864796486720f8b36adc)
What does your SPO2 look like during sleep? I thought mine was just inaccurate but I'm starting to suspect sleep apnea. : r/Garmin
![Garmin Forerunner 255S GPS Smartwatch, Battery Upto 12 Days, Advanced Insights, HeartRate Variability & Advanced Sleep Score, SPO2 & Stress Monitoring, Performance Condition with Grey Band : Amazon.in: Electronics Garmin Forerunner 255S GPS Smartwatch, Battery Upto 12 Days, Advanced Insights, HeartRate Variability & Advanced Sleep Score, SPO2 & Stress Monitoring, Performance Condition with Grey Band : Amazon.in: Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71WDnT064WL._AC_UF1000,1000_QL80_.jpg)
Garmin Forerunner 255S GPS Smartwatch, Battery Upto 12 Days, Advanced Insights, HeartRate Variability & Advanced Sleep Score, SPO2 & Stress Monitoring, Performance Condition with Grey Band : Amazon.in: Electronics
![Garmin patent revealed with aim of improving SpO2 monitoring in smartwatches - NotebookCheck.net News Garmin patent revealed with aim of improving SpO2 monitoring in smartwatches - NotebookCheck.net News](https://www.notebookcheck.net/fileadmin/Notebooks/News/_nc3/2019010315245073_32546456.jpg)