Mobile Health Data Sync: Multi-Device Deduplication

Mobile healthcare apps pull step counts, heart-rate samples and other vitals from several wearables at once through APIs like Apple HealthKit and Google Fit — a phone in your pocket, a smartwatch on your wrist and a fitness band can all report the same footstep within a fraction of a second of each other. This simulator renders that pipeline in 3D: three devices stream timestamped step events toward a central Health Record hub, and a merge-window reconciliation algorithm decides in real time whether an incoming event is a genuinely new burst of activity or a duplicate report of steps already counted. Adjust the merge window, the trusted priority source and each device's on/off state, and watch the naive raw total pull away from — or converge with — the reconciled total, with the resulting double-counting error tracked live.