Google has relaunched its Fitbit app as Google Health. The move highlights a deeper integration of Google’s artificial intelligence capabilities into everyday health tracking, with the centrepiece being a new AI-powered coaching tool built on the Gemini model.
The Google Health Coach, available to premium subscribers, is designed to move beyond passive data collection. Rather than simply logging steps or sleep, it analyses a user’s metrics over time and generates adaptive fitness plans, sleep recommendations, and health insights that adjust to changing schedules and circumstances. A user travelling without gym access, for instance, can inform the coach and receive a revised weekly plan accordingly.
Sleep tracking has also been updated. Google says its new machine learning models are 15 per cent more accurate than its previous iteration, with improvements to how the system captures naps, interruptions, and transitions between sleep stages. The resulting Sleep Score is intended to be more actionable, connecting nightly data to daytime behaviour patterns.
Additional features include menstrual cycle tracking with predictive fertile window estimates, nutrition logging via conversational input or photo upload, and the ability to query personal health history — such as when a user last ran a certain distance — through a chat interface.
On the question of expert oversight, Google says the coaching tool was developed with input from a Consumer Health Advisory Panel and validated through large-scale user research. The company has also brought in NBA player Stephen Curry and his performance team as what it describes as trusted innovators, though the precise nature of their involvement is not detailed.
Privacy commitments carried over from Fitbit remain in place: health and wellness data will not be used for Google Ads, users can delete or export their data at any time, and all data transmission is encrypted.
The app redesign and rebranding are live now. The Health Coach feature requires a Google Health premium subscription.
