Key takeaways 

• Fitbit unveiled an AI health coach. 
• The AI coach reflects a broader trend among health wearables. 
• The feature becomes available starting in October. 

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New smartwatches are getting the AI training coach treatment, and Google's unveiling of its revamped Fitbit is no different. The tech giant announced that Fitbit is getting a facelift with the help of Gemini, Google's AI agent. Starting in October, Fitbit Premium will get its own personal AI health coach that is a "fitness trainer, a sleep coach, and a health and wellness advisor" packed into one wellness app. 

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Smartwatches and wearables used to simply collect and present exercise and sleep data to users. Now, as brands beef up their services with AI, these devices are playing a larger role in the planning and execution of exercise habits or bedtime routine. These wearables -- and their AI -- have switched from passive recorders to active informers. 

How Fitbit's new AI coach works

This new AI-powered health coach, available within Fitbit's paid tier, tailors its activity and sleep guidance to your routine, conditions, and behavioral data it's collected. The coach begins by asking questions about the user, like their exercise frequency and ability, their routine, preferences, and available equipment. It then builds an exercise routine tailored to that input. 

After creating a plan, Fitbit's AI coach will adjust workout plans based on data like sleep, recovery, or strain. Plus, the user can make regular adjustments if, let's say, they sprain their ankle one week or have a busy work schedule that impacts their exercise routine the next. 

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Fitbit's new functionalities are supplemented by hardware improvements in the Google Pixel Watch 4. The smartwatch, also unveiled at Google's Made By Google event, comes with upgraded sensors that more accurately detect sleep stages and temperature variations, two biomarkers that inform a person's overall daily readiness. 

The health app will give users more information about their overall sleep quality and provide daily and longitudinal insights into their sleep patterns. It will also now adjust its suggested sleep times based on a user's sleep need, like if they need more sleep after a long flight or less sleep after several days of inactivity. 

The big data question 

For the first time, users can ask the AI coach questions about their routine to receive personalized responses. Fitbit connects to Google Health Connect and HealthKit, two health data storage apps, and the AI coach will use the data users input to inform its health query responses. 

Large language models, like the type used in Google's AI health coach, require lots of data to offer accurate, helpful responses to queries. In its press release, Google said it will be releasing Fitbit Premium as a preview so users can help shape the app as the team makes user experience improvements.

Whether or not Google will train its AI health coach on the data from Fitbit Premium previewers is another question. "We are dedicated to protecting your information and ensuring your data is used responsibly and securely," a Google spokesperson responded in an email to .

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