Fitbit’s Ionic smartwatch was the model’s first product to characteristic an SpO2 sensor, which is utilized in estimating blood oxygen ranges. A number of different Fitbit merchandise, specifically the Versa, Versa Lite, Versa 2, and Cost 3, got here with the same sensor, nevertheless it had stayed dormant till December. After being examined with a number of customers, the characteristic seems to be rolling out extra extensively.

Fitbit just lately added an “Estimated Oxygen Variation” graph to sleep information in its app, exhibiting vital oxygen saturation variations whilst you’re snoozing, however not all through the remainder of the day. The corporate had beforehand acknowledged that this graph was rolling out to a “small proportion of customers,” however an rising variety of individuals have just lately reported that it confirmed up for them.

Whereas Fitbit hasn’t formally confirmed whether or not the performance is now extensively out there, it has indicated it is creating “FDA-cleared options for sleep apnea,” which suggests the SpO2 sensor will most likely be used for extra detailed analytics. That comes at a time when a number of different exercise tracker firms have began providing related capabilities. Withings, one among Fitbit’s largest rivals, just lately unveiled the ScanWatch, which options each AFib and sleep apnea detection.