Google is transitioning the Fitbit app to the Google Health platform, resulting in the removal of features such as Sleep Profile, badges, and social interactions like groups and messaging. New metrics will include Resilience and weekly cardio targets, replacing traditional stress scores and daily goals. The Google Health app will allow users to monitor oxygen saturation levels through SpO2 data, while Estimated Oxygen Variation (EOV) levels will be retired. The cardio fitness core will shift to a standard VO2 max measurement, and minute-by-minute skin temperature data will be replaced with daily and weekly trends. The transition will eliminate social features, with changes effective for older Fitbit users starting May 12, 2026.