{
  "acc_range": 8,
  "acc_sample_count": 4013,
  "accelerometer_file_size_bytes": 411381,
  "actual_acc_sample_rate": 53.79964804526642,
  "actual_gyro_sample_rate": 53.79965650567181,
  "app_version": "0.4",
  "build_number": "22",
  "device_model": "iPhone17,1",
  "disconnect_count": 0,
  "duration_seconds": 75.649817291,
  "events_file_size_bytes": 859,
  "free_storage_at_end_bytes": 28629033751,
  "free_storage_at_start_bytes": 28631859991,
  "gyro_range": 2000,
  "gyro_sample_count": 4099,
  "gyroscope_file_size_bytes": 438394,
  "heart_rate_file_size_bytes": 4662,
  "heart_rate_sample_count": 75,
  "integrity_status": "complete",
  "integrity_warnings": [],
  "ios_version": "26.6.2",
  "label_count": 0,
  "labels_file_size_bytes": 52,
  "polar_device_id": "1BA31C37",
  "polar_device_type": "Polar Sense 1BA31C37",
  "polar_sdk_version": "8.1.0",
  "prediction_confidence_threshold": 0.7,
  "prediction_feature_schema_version": "motion-window-v2-batch-backfill",
  "prediction_model_id": "motionpulse-personal-seated-standing-logistic",
  "prediction_model_version": "phase2-logistic-v1-window-v2-prototype",
  "prediction_sample_count": 37,
  "predictions_file_size_bytes": 8271,
  "reconnect_count": 0,
  "recording_status": "completed",
  "requested_acc_sample_rate": 52,
  "requested_gyro_sample_rate": 52,
  "schema_version": 1,
  "session_ended_at": "2026-09-21T06:33:09Z",
  "session_file_size_bytes": 865215,
  "session_id": "0a1a48b2-0833-42a0-b62b-6434e4ae57d5",
  "session_started_at": "2026-09-21T06:31:54Z",
  "upload_status": "uploaded",
  "workout_type": "TEST"
}