![The Garmin D2 Air X10 Smartwatch has launched with SpO2 sensor, plus a host of aviation and fitness features - NotebookCheck.net News The Garmin D2 Air X10 Smartwatch has launched with SpO2 sensor, plus a host of aviation and fitness features - NotebookCheck.net News](https://www.notebookcheck.net/fileadmin/Notebooks/News/_nc3/D2_Air_X10.png)
The Garmin D2 Air X10 Smartwatch has launched with SpO2 sensor, plus a host of aviation and fitness features - NotebookCheck.net News
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
![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
![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)