![]() That’s why it became common to use pulse oximeters, which use optical techniques to non-invasively measure SpO2. 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. There are several ways to evaluate the oxygen saturation in your blood. 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 Of course, everyone’s oxygen levels are different. 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 changes in your fitness and wellness. In general, SpO2 values during sleep are typically above 90 percent. 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. When blood oxygen saturation levels are significantly lower than normal, it can be detrimental to the functioning of the body. 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. ![]() ![]() Oxygen levels in blood tend to remain relatively constant, even during exercise and sleep. Our bodies distribute oxygenated blood to every part of our body-and SpO2 is the level of oxygen in your blood. 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)?īlood oxygenation is a crucial part of your body properly metabolizing the energy it needs to function at an optimal level. As part of our ongoing feature development, we have introduced a new capability-an estimate of your blood oxygen saturation. 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.Īt 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. ![]()
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