Track Your SpO2 to Uncover Changes in Your Wellbeing


At Fitbit, we’re all the time working to determine new methods we will let you know extra about your physique and your wellness with new and current know-how. As a part of our ongoing characteristic growth, we’ve got enhanced how we measure your estimated blood oxygen saturation. We’re excited to announce that in choose markets, you may entry it by the free SpO2 Signature clock face in your smartwatch, so as to observe potential modifications in your wellbeing.* 

What’s Oxygen Saturation (SpO2)?

Blood oxygenation is an important a part of your physique correctly metabolizing the power it wants to operate at an optimum degree. Our our bodies distribute oxygenated blood to each a part of our physique—and SpO2 is the extent of oxygen in your blood. 

Oxygen ranges in blood have a tendency to stay comparatively fixed, even throughout train and sleep. If the cardiorespiratory system is working and an individual is respiration room air, usually a lot of the blood’s oxygen carrying capability is used, in order that blood oxygen saturation through the day is mostly between 95 and 100 %. When blood oxygen saturation ranges are considerably decrease than regular, it may be detrimental to the functioning of the physique. 

Nighttime SpO2 is normally decrease than daytime SpO2 due to the truth that the total amount of air you breathe in tends to drop during sleep. Typically, SpO2 values throughout sleep are usually above 90 %. Monitoring SpO2 may also help you be extra conscious of your oxygen saturation developments throughout sleep, which can provide help to study when there could also be a sign of vital modifications in your health and wellness. 

In fact, everybody’s oxygen ranges are totally different. If you’d like to see your SpO2 developments over time, you’ll give you the chance to view them in the brand new Well being Metrics dashboard, coming quickly to Fitbit Premium members.**

How We Measure SpO2

There are a number of methods to consider the oxygen saturation in your blood. One methodology entails truly getting a pattern of blood and utilizing laboratory chemistry tools to measure oxygen saturation, and whereas that is one strategy, it isn’t sensible for a lot of makes use of. That’s why it grew to become widespread to use pulse oximeters, which use optical strategies to non-invasively measure SpO2.

How does it work? Deoxygenated blood, which is returned to your lungs through your veins, is a barely darker purple colour than the absolutely oxygenated blood in your arteries and arterioles (small blood vessels that convey oxygenated blood to your tissues). Through the use of Fitbit sensors to measure the relative reflection of purple and infrared mild out of your blood through your wrist, and seeing the way it varies as your coronary heart beats, we will estimate your SpO2 worth. 

It’s vital to word that Fitbit doesn’t measure or show SpO2 values beneath 80 %. Fitbit SpO2 information shouldn’t be supposed for medical functions, neither is it supposed to diagnose, deal with, remedy, or forestall any illness or situation. The information supplied by Fitbit SpO2 is meant to be an in depth estimation of your blood oxygen saturation ranges, however might not be exactly correct. You shouldn’t use or depend on Fitbit SpO2 for any medical functions. 

Get Began

With the SpO2 Signature clock face, your Fitbit smartwatch (Fitbit Ionic, Versa household, and Fitbit Sense) will observe your common SpO2 ranges when you’re sleeping. To get began, as soon as it’s out there, install the SpO2 clock face, then go to sleep carrying your smartwatch with the clock face, and inside about an hour of waking up, you’ll give you the chance to see your common SpO2 and vary. Plus, you may count on extra SpO2 clock faces quickly to come in 2020! 

If in case you have a Fitbit Premium membership, it is possible for you to to examine your developments in the upcoming Well being Metrics dashboard. Need to study extra about what you may count on with Well being Metrics? Learn all concerning the new dashboard here


Not out there in all markets. This characteristic shouldn’t be supposed to diagnose or deal with any medical situation or for another medical function. It’s supposed to provide help to handle your effectively being and hold observe of your info.

*Not out there in all markets. Availability can be rolling. You shouldn’t depend on SpO2 for any medical functions. 

**Coming quickly. The Well being Metrics dashboard and the metrics displayed in the dashboard usually are not out there in all international locations. The Well being Metrics dashboard shouldn’t be supposed to diagnose or deal with any medical situation and shouldn’t be relied on for any medical functions. 



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