The co-founders who turned Fitbit into a wearables giant are back with a new mission. James Park and Eric Friedman just unveiled Luffu, an AI-powered family health platform that aggregates medical data from connected devices, manual inputs, and apps like Apple Health to provide personalized insights and proactive alerts. The startup marks the duo's first major move since departing Google in 2024 and signals their bet that AI can solve what wearables couldn't - making sense of fragmented family health information.
Two years after walking away from Google, the founders who built Fitbit from a startup into a $2.1 billion acquisition are making their next play. James Park and Eric Friedman just pulled back the curtain on Luffu, a platform that uses AI to tackle one of healthcare's messiest problems - scattered family health information spread across incompatible apps, devices, and handwritten notes.
The timing couldn't be more pointed. While Google continues to struggle with integrating Fitbit into its ecosystem, Park and Friedman are building what they believe Fitbit should have evolved into: an AI-first health intelligence system. According to the official announcement, Luffu doesn't just track steps or heart rate. It pulls health data from connected devices, platforms like Apple Health and yes, even Fitbit, then layers on information family members share through voice prompts, text messages, or photos.
What makes Luffu different is the AI working behind the scenes. The system automatically extracts and organizes medical details - medication schedules, dietary changes, sleep patterns, symptoms - without forcing users to manually log everything. But the platform goes beyond passive data collection. Users can ask Luffu specific questions like "How might changing Dad's diet affect his sleep quality?" or "Did Mom take her blood pressure medication this morning?" and get personalized answers drawn from that family member's aggregated health profile.
