fitbit on Twitter: "Can you track your SpO2❓O YES❗️This free SpO2 Signature clock face for smartwatches shows your nightly oxygen levels at a glance so you can see potential changes in your
![The red light sensor on my Ionic suddenly turned on today—is Fitbit secretly measuring my SpO2 or other data? : r/fitbit The red light sensor on my Ionic suddenly turned on today—is Fitbit secretly measuring my SpO2 or other data? : r/fitbit](https://i.redd.it/chvloxiyezl01.jpg)
The red light sensor on my Ionic suddenly turned on today—is Fitbit secretly measuring my SpO2 or other data? : r/fitbit
![Introducing Fitbit Sense: The Advanced Health Smartwatch Featuring Innovation in Stress Management, Heart Health, and Wellness - Fitbit Blog Introducing Fitbit Sense: The Advanced Health Smartwatch Featuring Innovation in Stress Management, Heart Health, and Wellness - Fitbit Blog](https://blog.fitbit.com/wp-content/uploads/2020/08/sense_Blog.jpg)