Fitbit users woke up last week to find their reliable tracking app transformed. The familiar interface had vanished. In its place stood the Google Health app. Heavy with AI coaching and stripped of longstanding features. The shift has sparked widespread anger among longtime owners who never asked for the overhaul. Complaints flooded Reddit’s r/fitbit forum. One post titled “Thanks, Google, for ruining Fitbit” gathered nearly 2,000 upvotes in days. Users described the new experience as cumbersome. Data that once sat front and center now requires scrolling past paragraphs of AI-generated summaries. “Why must I now scroll through paragraphs of AI slop on every tab before I can actually see my activities and data?” one reviewer asked. The backlash intensified on the Google Play Store. The app that once carried the Fitbit name now carries a wave of one-star ratings. Reviewers call it “terrible” and “unbelievably bad.” Some canceled premium subscriptions immediately.…