Fitbit Personal Health Coach Gets Medical Records Integration, Enhanced Sleep Tracking, and CGM Connectivity

At Google's annual health event The Check Up, Fitbit announced significant updates including a 15% improvement in sleep staging accuracy, a reimagined Sleep Score, the ability to securely link medical records to the Fitbit app for personalized AI coaching powered by Gemini, and CGM (continuous glucose monitor) connectivity, alongside a Nature-published study on predicting insulin resistance using wearable data.