Pulse oximeter only tracks for a few hours during the night. - Forerunner 245 Series - Running/Multisport - Garmin Forums
![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
![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/640x480/__key/communityserver-discussions-components-files/400/Screenshot_5F00_20190608_2D00_075731.png)
Why Pulse Oximeter sp02 works at night only from 00 - 04 h - Forerunner 945 - Running/Multisport - Garmin Forums
![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
![Pulse Ox Reading Drops to 0% Issue - Garmin Connect Mobile Android - Mobile Apps & Web - Garmin Forums Pulse Ox Reading Drops to 0% Issue - Garmin Connect Mobile Android - Mobile Apps & Web - Garmin Forums](https://forums.garmin.com/resized-image/__size/960x720/__key/communityserver-discussions-components-files/2/20200927_5F00_055833.jpg)
Pulse Ox Reading Drops to 0% Issue - Garmin Connect Mobile Android - Mobile Apps & Web - Garmin Forums
![Amazon.com: Garmin 010-02173-11 Venu, GPS Smartwatch with Bright Touchscreen Display, Features Music, Body Energy Monitoring, Animated Workouts, Pulse Ox Sensor and More, Black : Everything Else Amazon.com: Garmin 010-02173-11 Venu, GPS Smartwatch with Bright Touchscreen Display, Features Music, Body Energy Monitoring, Animated Workouts, Pulse Ox Sensor and More, Black : Everything Else](https://m.media-amazon.com/images/I/418bP0QX1wL._AC_.jpg)