Fitbit users: You can upload medical records now for AI advice - but is that safe?

▤ Summary

Fitbit will let users upload medical records into the Fitbit app so its AI-powered personal health coach can use lab results, medications, and visit history to contextualize responses. Google says the records are stored securely, will not be used for ads, and users control how the data is used, while also warning the coach will prompt users to consult clinicians when conversations get too medical. Google acknowledges limitations of large language models and says it uses validation and evaluation to reduce inaccuracies and hallucinations. The update also brings public preview support for continuous glucose monitor integration and improved sleep-staging models, and the feature will begin rolling out next month.

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