Published July 5, 2021, 7:30 AM The latest FitbitOS release is jam-packed with new features and updates that make it easier than ever to stay healthy, connected, and motivated—right from your wrist. Fitbit Sense and Versa 3 users can now track SpO2 levels from the Today dashboard on-wrist,¹ plus get access to new clock face switcher functionality, new celebrations, and hear audible responses from Google.² Versa 3 users will also join Sense users in being able to better understand their heart health with high and low heart rate notifications. Ready to learn more? Let’s dive in. What’s new with this update? Oxygen saturation (SPO2) tracking. You can now access your SpO2—the level of oxygen in your blood—from more places. In addition to the SpO2 clock face and within the Health Metrics Dashboard in the Fitbit app, you can now see your nightly average and trends from the past week in the on-wrist Today dashboard. With Premium, your Health Metrics dashboard shows your trends from the past month and personal ranges to help you interpret your data.¹