Google has revealed a new, AI-powered personalised health coach for wearers of Fitbit and Pixel trackers and smartwatches.

The new assistant, built using Google’s Gemini AI platform, can act as a personal fitness trainer, sleep coach and a general health and wellness advisor that’s both proactive and responsive to user requests.

Wearers of supported devices can, for example, request a completely bespoke fitness routine based on their goals and available equipment. The health coach will create an entire plan designed to progress as the user improves.

Because the Fitbit/Pixel device is continually monitoring the physical metrics of the wearer, workouts will be tailored to their current physical state.

For example, after a Pixel Watch detects a poor night’s sleep, the next-day’s routine may be altered to reflect the body’s need for a less intense workout.

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Google says the coach “constantly adapts based on personal health and wellness metrics and is uniquely tailored to goals and real-life circumstances.”

Users can also tell the coach how they’re feeling through a chatbot, so, when work commitments get in the way, or a slight injury makes the scheduled workout less desirable, the health coach can always tweak the schedule.

The health coach can also answer specific questions such as: “Should I get an extra hour of sleep or work out tomorrow morning” giving users a sense of what would better suit their body’s needs.

Because the coach can also pull in data from Google Health Connect or Apple HealthKit-compatible devices, information from smart scales and glucose monitors also becomes part of the equation.

The new AI health coach will become available in preview for Fitbit Premium subscribers within the Fitbit app from October 2025. Users in the US can sign up to be part of the preview.