Document title: Track Your SpO2 to Uncover Changes in Your Wellbeing - Fitbit Blog
`Capture URL: https://blog.fitbit.com/track-your-spo2/
`Capture timestamp (UTC): Fri, 17 Feb 2023 01:37:50 GMT
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`SEPTEMBER 7, 2020
`
`Track Your SpO2 to Uncover
`Changes in Your Wellbeing
`
`BY FITBIT STAFF
`
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`Health Metrics
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`
`Oxygen saturation (Sp02)
`
`Recent sleep: 98%
`LEARN MORE
`
`ote a bs
`
`Note: As of December 15, 2020, Fitbit Sense and Versa 3 users can now view their SpO2
`
`trends over the past week without a Premium membership.
`
`At Fitbit, we are always working to identify new ways we can tell you more about your body
`
`and your wellness with new and existing technology. As part of our ongoing feature
`
`development, we have introduced a new capability—an estimate of your blood oxygen
`
`saturation. We're excited to announce that in select markets, you can access it through the
`
`free SpO2 Signature clock face on your smartwatch, so that you can track potential changes in
`
`your wellbeing.*
`
`What is Oxygen Saturation (SpO2)?
`
`Blood oxygenation is a crucial part of your body properly metabolizing the energy it needs to
`
`function at an optimal level. Our bodies distribute oxygenated blood to every part of our body
`
`—and SpO2 is the level of oxygen in your blood.
`
`Oxygen levels in blood tend to remain relatively constant, even during exercise and sleep. If
`
`the cardiorespiratory system is working and a person is breathing room air, typically most of
`
`the blood’s oxygen carrying capacity is used, so that blood oxygen saturation during the day is
`
`generally between 95 and 100 percent. When blood oxygen saturation levels are significantly
`
`lower than normal, it can be detrimental to the functioning of the body.
`
`Nighttime SpO2 is usually lower than daytime SpO2 due to the fact that the total amount of air
`
`you breathe in tends to drop during sleep. In general, SpO2 values during sleep are typically
`
`above 90 percent. Tracking SpO2 can help you be more aware of your oxygen saturation
`
`trends during sleep, which may help you learn when there may be an indication of important
`
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`MASIMO 2092
`Apple v. Masimo
`IPR2022-01291
`
`

`

`Document title: Track Your SpO2 to Uncover Changes in Your Wellbeing - Fitbit Blog
`Capture URL: https://blog.fitbit.com/track-your-spo2/
`Capture timestamp (UTC): Fri, 17 Feb 2023 01:37:50 GMT
`
`Page 2 of 3
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`@ stress
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`~
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`@
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`SLEEP
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`& Fiver News ~
`
`above 90 percent.
`
`[racking
`
`SpO2
`
`can
`
`help you be more aware of your oxygen saturation
`
`trends during sleep, which may help you learn when there may be an indication of important
`
`changes in your fitness and wellness.
`
`Of course, everyone’s oxygen levels are different. If you want to see your SpO2 trends over
`
`time, you'll be able to view them in the new Health Metrics dashboard, available to Fitbit
`
`Premium members.**
`
`How We Measure SpO2
`
`There are several ways to evaluate the oxygen saturation in your blood. One method involves
`
`actually getting a sample of blood and using laboratory chemistry equipment to measure
`
`oxygen saturation, and while this is one approach, it is not practical for many uses. That’s why
`
`it became common to use pulse oximeters, which use optical techniques to non-invasively
`
`measure SpO2.
`
`How does it work? Deoxygenated blood, which is returned to your lungs via your veins, is a
`
`slightly darker red color than the fully oxygenated blood in your arteries and arterioles (small
`
`blood vessels that bring oxygenated blood to your tissues). By using Fitbit sensors to measure
`
`the relative reflection of red and infrared light from your blood via your wrist, and seeing how it
`
`varies as your heart beats, we can estimate your SpO2 value.
`
`It's important to note that Fitbit does not measure or display SpO2 values below 80 percent.
`
`Fitbit SpO2 data is not intended for medical purposes, nor is it intended to diagnose, treat,
`
`cure, or prevent any disease or condition. The data provided by Fitbit SpO2 is intended to be a
`
`close estimation of your blood oxygen saturation levels, but may not be precisely accurate.
`
`You should not use or rely on Fitbit SpO2 for any medical purposes.
`
`Get Started
`
`With the SpO2 Signature clock face, your Fitbit smartwatch (Fitbit lonic, Versa family, and
`
`Fitbit Sense) will track your average SpO2 levels while you're sleeping. To get started, install
`
`the SpO2 clock face, then go to sleep wearing your smartwatch with the clock face, and within
`
`about an hour of waking up, you'll be able to see your average SpO2 and range. Plus, you can
`
`expect more SpO2 clock faces soon to come in 2020!
`
`If you have a Fitbit Premium membership, you will be able to check your trends in the Health
`
`Metrics dashboard. Want to learn more about what you can expect with Health Metrics? Read
`
`all about the new dashboard here.
`
`
`
`Not available in all markets. This feature is not intended to diagnose or treat any medical
`
`condition or for any other medical purpose. It is intended to help you manage your well being
`
`and keep track of your information.
`
`*Not available in all markets. Availability will be rolling. You should not rely on SpO2 for any
`
`medical purposes.
`
`**The Health Metrics dashboard and the metrics displayed in the dashboard are not available
`
`in all countries. The Health Metrics dashboard is not intended to diagnose or treat any medical
`
`condition and should not be relied on for any medical purposes.
`
`This information is for educational purposes only and is not intended as a substitute for
`
`medical diagnosis or treatment. You should not use this information to diagnose or treat a
`
`health problem or condition. Always check with your doctor before changing your diet, altering
`
`your sleep habits, taking supplements, or starting a new fitness routine.
`
`
`
`MASIMO 2092
`Apple v. Masimo
`IPR2022-01291
`
`

`

`Document title: Track Your SpO2 to Uncover Changes in Your Wellbeing - Fitbit Blog
`Capture URL: https://blog.fitbit.com/track-your-spo2/
`Capture timestamp (UTC): Fri, 17 Feb 2023 01:37:50 GMT
`
`Page 3 of 3
`
`@ = F actvr ~
`
`> el
`
`@ stress
`
`~
`
`@
`
`SLEEP
`
`& Fivert News ~
`
`actually getting a sample of blood and using laboratory chemistry equipment to measure
`
`oxygen saturation, and while this is one approach, it is not practical for many uses. That’s why
`
`it became common to use pulse oximeters, which use optical techniques to non-invasively
`
`measure SpO2.
`
`How does it work? Deoxygenated blood, which is returned to your lungs via your veins, is a
`
`slightly darker red color than the fully oxygenated blood in your arteries and arterioles (small
`
`blood vessels that bring oxygenated blood to your tissues). By using Fitbit sensors to measure
`
`the relative reflection of red and infrared light from your blood via your wrist, and seeing how it
`
`varies as your heart beats, we can estimate your SpO2 value.
`
`It's important to note that Fitbit does not measure or display SpO2 values below 80 percent.
`
`Fitbit SpO2 data is not intended for medical purposes, nor is it intended to diagnose, treat,
`
`cure, or prevent any disease or condition. The data provided by Fitbit SpO2 is intended to be a
`
`close estimation of your blood oxygen saturation levels, but may not be precisely accurate.
`
`You should not use or rely on Fitbit SpO2 for any medical purposes.
`
`Get Started
`
`With the SpO2 Signature clock face, your Fitbit smartwatch (Fitbit lonic, Versa family, and
`
`Fitbit Sense) will track your average SpO2 levels while you’re sleeping. To get started, install
`
`the SpO2 clock face, then go to sleep wearing your smartwatch with the clock face, and within
`
`about an hour of waking up, you'll be able to see your average SpO2 and range. Plus, you can
`
`expect more SpOQ2 clock faces soon to come in 2020!
`
`If you have a Fitbit Premium membership, you will be able to check your trends in the Health
`
`Metrics dashboard. Want to learn more about what you can expect with Health Metrics? Read
`
`all about the new dashboard here.
`
`
`
`Not available in all markets. This feature is not intended to diagnose or treat any medical
`
`condition or for any other medical purpose. It is intended to help you manage your well being
`
`and keep track of your information.
`
`*Not available in all markets. Availability will be rolling. You should not rely on SpO2 for any
`
`medical purposes.
`
`**The Health Metrics dashboard and the metrics displayed in the dashboard are not available
`in all countries. The Health Metrics dashboard is not intended to diagnose or treat any medical
`
`condition and should not be relied on for any medical purposes.
`
`This information is for educational purposes only and is not intended as a substitute for
`
`medical diagnosis or treatment. You should not use this information to diagnose or treat a
`health problem or condition. Always check with your doctor before changing your diet, altering
`
`your sleep habits, taking supplements, or starting a new fitness routine.
`
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`MASIMO 2092
`Apple v. Masimo
`IPR2022-01291
`
`