SpO2 Series

Stream: timeseries | Event type: spo2_series

Blood oxygen saturation (SpO2) samples chunked into 15-minute windows.

Example

{
  "event_type": "spo2_series",
  "data_version": "1.1",
  "source_id": "ts-spo2-c3d4...",
  "provider_ref": "spo2-2026-03-19",
  "device_id": "dev-001",
  "payload_ts": 1742558400000,
  "revision": 1,
  "capture_mode": null,  "window_start": 1742558400000,
  "window_end": 1742559300000,
  "chunk_index": 28,
  "day_complete": false,
  "resolution_s": 60,
  "columns": ["ts", "spo2_pct"],
  "samples": [
    [1742558400000, 97],
    [1742558460000, 96]
  ]
}

SpO2 Columns

Column	Type	Unit	Description
ts	number	epoch ms	Sample timestamp.
spo2_pct	number	percent	Blood oxygen saturation.

See Heart Rate Series for the common timeseries chunking fields.