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• O2 Saturation Reader
• O2 Sat Normal
• O2 Sat Levels
• O2 Sat Meter

The state of being saturated, or the act of saturating. Oxygen saturation the amount of oxygen bound to hemoglobin in the blood, expressed as a percentage of the maximal binding capacity. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. An O2 sat of 90% corresponds to a PaO2 of 60 mmHg. This is the minimum oxygen concentration providing enough oxygen to prevent ischemia in tissues. Once the O2 sat falls below 90%, the PaO2 drops quickly into the dangerously hypoxic range as fewer and fewer oxygen molecules are bound to Hgb. We want to try to keep O2 saturation above 90%. A measurement of your blood oxygen is called your oxygen saturation level. In medical shorthand, you may hear it called a PaO 2 when using a blood gas and an O 2 sat (SpO2) when using a pulse ox. Suggested that up to 60% of patients initially started on oxygen may not need to be on oxygen upon re-evaluation. Where the rubber meets the road is the fact that the majority of these studies only take into account the resting oxygen saturation value. Your activity or exercise saturation. Unlimited Data available on O2 Custom Plans on selected handsets and selected SIM Only tariffs. Fair use policy applies, personal and non-commercial usage only. If you regularly use 650GB of data per month or tether 12 or more devices we may consider this to be non permitted use and have the right to move you to a more suitable plan.

For those people living with a chronic lung disease, such as chronic obstructive pulmonary disease (COPD), there are many factors when measuring one’s health. These factors can include various sets of metrics which help the patient better understand the current state of their health. One of these metrics is oxygen saturation levels.

Oxygen saturation is one factor in determining how easy it is for one to breathe, which is vital for someone with COPD. To better understand this, here’s how COPD affects oxygen saturation levels.

What is COPD?

Chronic obstructive pulmonary disease is a progressive form of lung disease ranging from mild to severe. COPD is known for the restriction of airflow into and out of the lungs, thus making it difficult to breathe. Restrictive lung diseases such as emphysema and chronic bronchitis fall under the umbrella of COPD. There are four stages of COPD, ranging from mild to very severe.

Typically, symptoms of COPD can include shortness of breath, constant “smoker’s cough”, sleep apnea, wheezing and recurring upper respiratory infections – pneumonia and bronchitis. For some people, COPD can develop slowly, but for others, disease progression can happen quickly.

What are Oxygen Saturation Levels?

Oxygen saturation is a measure of how much oxygen the blood is carrying through the body. Oxygen attaches to the hemoglobin molecules in the blood. The oxygen carried in the blood is usually referenced as a percentage of the maximum amount of O2 the blood can carry.

Normal oxygen saturation levels range from 95 to 100 percent. Simply put, oxygen levels under 90 percent are considered low, and are also known as hypoxemia. Oxygen saturation is also referred to as SpO2.

How Oxygen Saturation Levels are Affected by COPD

O2 Saturation Reader

As a patient’s COPD stage diagnosis advances, symptoms get worse. When a patient is diagnosed with stage four or very severe COPD, many people have trouble getting enough oxygen. Doing simple tasks become very difficult.

One way to help oxygen saturation levels is to eat COPD-friendly foods that improve blood oxygen. In addition to a change in diet, doctors often prescribe oxygen therapy to help the body receive enough oxygen. Oxygen therapy is conducted using supplemental oxygen, where patients breathe in air from compressed air tanks or liquid oxygen containers via nasal prongs, masks or breathing tubes.

Oxygen therapy can be a great short-term or long-term treatment plan. It helps people receive the recommended amount of oxygen. However, there are also alternatives. Some COPD patients have turned to cellular therapy as a treatment option. Cellular therapy uses the patients’ own body, and it may affect disease progression and may improve quality of life.

If you or someone you know suffers from a chronic lung disease like COPD, interstitial lung disease emphysema or pulmonary fibrosis, the Lung Health Institute may be able to help. For more information about cellular therapy, please contact us or call 888-745-6697.

Your Fitbit smartwatch uses sensors to estimate your blood oxygen saturation (SpO2) while you sleep.

The Fitbit SpO2 feature is intended for general wellness purposes only and should not be used or relied on for any medical purposes. Consult your health care professional about any questions or health issues you may have.

Your blood oxygen saturation (SpO2) is the percentage of your blood that’s saturated with, or contains, oxygen. The oxygen levels in your blood tend to remain relatively constant, even during exercise and sleep.

O2 Sat Normal

Add SpO2 to your Fitbit device

To collect SpO2 data, install an SpO2 clock face (available on Ionic, Sense, and Versa series) or the SpO2 app (available on Sense and Versa 3).

To install an SpO2 clock face:

1. With your Fitbit device nearby, in the Fitbit app, tap the Today tab > your profile picture > your device image.
2. Tap Clock Faces > All Clocks.
3. Find the SpO2 clock face category. You might have to swipe up to find it. Tap View All to see the complete list of available clock faces.
4. Tap the clock face you want to install > Select > Install.

The SpO2 clock faces are only available in certain countries at this time. If you don’t see them in the Clock Face Gallery, the feature isn’t available in your region. For more information on the availability of Fitbit SpO2, see fitbit.com.

If you have trouble adding an SpO2 clock face to your Fitbit device, make sure you update your watch to run the latest version of Fitbit OS. For instructions, see How do I update my Fitbit device?

To install the SpO2 app (Sense and Versa 3 only):

1. With your Fitbit device nearby, in the Fitbit app, tap the Today tab > your profile picture > your device image.
2. Tap Apps > All Apps.
3. Tap the magnifying glass icon and search for “SpO2 Tracker”.
4. In the results, tap SpO2 Tracker > Install.

The SpO2 app doesn’t appear as an app on your watch; instead, it runs in the background to track your SpO2 data. View your results in the Fitbit app.

Note that your watch must be running Fitbit OS 5.1 to install the SpO2 app. For more information on updating your watch, see How do I update my Fitbit device?

O2 Sat Levels

The Fitbit SpO2 app is automatically added for users in select countries. For more information on updating your tracker, see How do I update my Fitbit device? For more information on the availability of Fitbit SpO2, see fitbit.com.

If you removed the SpO2 app from your device, reinstall it in the Fitbit app on your phone:

1. With your Fitbit device nearby, in the Fitbit app, tap the Today tab > your profile picture > your device image.
2. Tap Apps > All Apps.
3. In the list of apps, tap SpO2 > Install.

See your most recent SpO2 levels on your device

See your nightly SpO2 data on an SpO2 clock face:

1. Wear your Fitbit device to bed, and sync it in the morning.
2. Check your clock face to see your average SpO2 level and the range of values detected.

It may take around an hour for your SpO2 values to appear on the clock face after you sync your device. The clock face shows data for your most recent sleep session. If your sleep session is split into 2 separate logs or you take a long nap, the clock face updates to show data for the most recent sleep session after your device syncs with the Fitbit app.

1. Wear your Fitbit device to bed. Wear your device securely so that the back of your device is in contact with your skin.
2. In the morning, swipe up from the clock face. See your average resting SpO2 level on the SpO2 tile.

It may take around an hour for your SpO2 values to appear after you wake up. The SpO2 tile shows data for your most recent sleep session. If your sleep session is split into 2 separate logs or you take a long nap, the tile updates to show data for the most recent sleep session.

Track your SpO2 trends in the Fitbit app

See your SpO2 trends in the Health Metrics tile in the Fitbit app on your phone. The Health Metrics tile is available with Fitbit Charge 4, Fitbit Sense, Fitbit Versa 2, and Fitbit Versa 3. To see historical data, upgrade to Fitbit Premium. For other devices, a Fitbit Premium subscription is required to see health metrics data.

1. Wear your device for at least a full day, including to sleep at night.
2. In the morning, open the Fitbit app and tap the Health Metrics tile.
3. Swipe up to find the Oxygen Saturation (SpO2) tile.

Note that for Ionic, Versa, Versa Lite Edition, and Versa 2, SpO2 data is only collected when you use an SpO2 clock face. For a list of compatible SpO2 clock faces, see Add SpO2 to your Fitbit device. For Sense and Versa 3 you can install either an SpO2 clock face or the SpO2 app to collect SpO2 data. Charge 4 users must have the SpO2 app installed.

Your Fitbit device measures your SpO2 levels while you sleep using red and infrared sensors on the back of the device. The sensors shine red and infrared light onto your skin and blood vessels, and use the reflected light that bounces back to estimate how much oxygen is in your blood:

• Richly oxygenated blood reflects more red light than infrared light.
• Poorly oxygenated blood reflects more infrared light than red light.

Note that you might see the red and infrared sensors continue to blink for around 30 minutes after you wake up.

SpO2 values naturally vary, and nighttime SpO2 is usually lower than daytime SpO2 due to the fact that your breathing rate is usually slower during sleep. In general, SpO2 values during sleep are typically above 90%. The SpO2 values presented are an estimate and in general can be influenced by your activity, altitude, and overall health.

You may notice an SpO2 value that seems lower than expected. This can be due to:

• Your arm position and movement
• The position and fit of your Fitbit device
• Limited blood flow to the surface of the skin
• Differences in anatomical body structures can also impact the accuracy of your Fitbit device’s sensors.

Several factors can affect your body's ability to maintain blood oxygen levels. These include, but are not limited to, the following:

• There must be enough oxygen in the air you are breathing.
• Your lungs must be able to inhale air containing oxygen and exhale carbon dioxide.
• Your bloodstream must be able to carry oxygen throughout your body.

An issue with any of these factors could impact your SpO2 values. For example, in high altitudes the air is less dense and therefore contains less oxygen. If you experience low SpO2 values while at high altitudes you may want to consider descending to a lower altitude.

Certain health problems can also impact the body's ability to take in oxygen. These factors can be compounded under more extreme circumstances such as during intensive exercise.

You should not use or rely on the SpO2 reading on your Fitbit device for any medical purposes. If you have concerns about your health, you should consult your healthcare provider.

If you see the message “SpO2 not installed” on your clock face, install the SpO2 Tracker app. For instructions, see Add SpO2 to your Fitbit device.

If you see dashed lines on the clock face or SpO2 tile, a message that the SpO2 data couldn’t be read, or missing data in the Health Metrics tile in the Fitbit app on your phone, keep in mind the following:

• Your device doesn’t retroactively measure your SpO2 values. When you start using Fitbit SpO2, you’ll see dashed lines until after your next sleep session.
• You must get at least 3 hours of quality sleep. Data is only collected when you’re still. If you move a lot during your sleep or the sleep session is too short, you might not get SpO2 data.
• Charge your Fitbit device to make sure it’s able to collect data throughout your entire sleep session. Note that you may have to charge your Fitbit device more often when using an SpO2 clock face or app.
• You must sync your Fitbit device with the Fitbit app before the clock shows your SpO2 data. Note that it may take around an hour for your SpO2 values to appear after you sync your device. For troubleshooting syncing, see Why won't my Fitbit device sync?
• Turning off any SpO2 clock face or app permissions can cause the feature to stop functioning. For instructions on adjusting permissions, see How do I install and manage apps on my Fitbit device?
• Your Fitbit device must be able to consistently track your SpO2 data:
  • Wear your device slightly higher on your wrist.
  • Make sure your device is in contact with your skin.
  • Your device should be snug but not constricting.
  • Tattooed skin can impact the accuracy of the red and infrared sensors on your Fitbit device.

You may have to charge your Fitbit device more often when collecting SpO2 data.

O2 Sat Meter

To remove SpO2 tracking, change your clock face to one not listed in the SpO2 clock face category:

1. With your device nearby, in the Fitbit app, tap the Today tab > your profile picture > your device image.
2. Tap Clock Faces > All Clocks.
3. Browse the available clock faces. Tap the clock face you want and tap Select to install it.

If you installed the SpO2 app, uninstall it:

1. With your device nearby, in the Fitbit app, tap the Today tab > your profile picture > your device image.
2. Tap Apps > SpO2 Tracker > Remove > Uninstall.

1. With your device nearby, in the Fitbit app, tap the Today tab > your profile picture > your device image.
2. Tap Apps > SpO2 > Remove > Uninstall.

Estimated oxygen variation (EOV) is an estimate of the changes in your blood oxygen saturation levels. For instructions, see How do I track my estimated oxygen variation in the Fitbit app? The EOV feature is designed to see specific events overnight when your blood oxygen saturation levels varied, which could indicate breathing disturbances.

Fitbit SpO2 estimates your average blood oxygen saturation levels and range while you sleep. It’s designed to see potential changes to your fitness and wellness.

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