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
![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)
Garmin patent revealed with aim of improving SpO2 monitoring in smartwatches - NotebookCheck.net News
Pulse oximeter only tracks for a few hours during the night. - Forerunner 245 Series - 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?auto=webp&s=a65ee91ee8d367303b2da0b2640c329d264530bf)
What does your SPO2 look like during sleep? I thought mine was just inaccurate but I'm starting to suspect sleep apnea. : r/Garmin
![Anyone else having SPO2 graphs like this at night? Im not overweight or a snorer, no symptoms of sleep apnea. : r/Garmin Anyone else having SPO2 graphs like this at night? Im not overweight or a snorer, no symptoms of sleep apnea. : r/Garmin](https://i.redd.it/80hyfnfl7hfa1.jpg)
Anyone else having SPO2 graphs like this at night? Im not overweight or a snorer, no symptoms of sleep apnea. : r/Garmin
![Accuracy of sleep pulse ox? What does it mean if SPO2 drops to 84% but respirations movement and HR show Normal at that time? : r/Garmin Accuracy of sleep pulse ox? What does it mean if SPO2 drops to 84% but respirations movement and HR show Normal at that time? : r/Garmin](https://external-preview.redd.it/RWL7L_NX_RYrgCLBn2GgPHzj-VhXFS0J9oj0_boO6nU.jpg?auto=webp&s=00bf61602141431c9783e441dce3b6737c1f95b2)
Accuracy of sleep pulse ox? What does it mean if SPO2 drops to 84% but respirations movement and HR show Normal at that time? : r/Garmin
![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
![My spo2 level drops 5-10 times at night. Sometimes down to 78. Should I worry ? Avarage is allways above 90 - Instinct Solar - Wearables - Garmin Forums My spo2 level drops 5-10 times at night. Sometimes down to 78. Should I worry ? Avarage is allways above 90 - Instinct Solar - Wearables - Garmin Forums](https://forums.garmin.com/resized-image/__size/960x720/__key/communityserver-discussions-components-files/498/021D3EB4_2D00_5AC1_2D00_4131_2D00_8633_2D00_750E62C49F63.png)