| Field | Type | Range |
|---|---|---|
| heart_rate | number | 20–300 bpm |
| rmssd | number | 0–500 ms |
| sdnn | number | 0–500 ms |
| pnn50 | number | 0–100% |
| spo2 | number | 50–100% |
| mean_ibi | number | 200–2000 ms |
| ibi_count | integer | 1–120 (server-side IBI sliding window) |
| Field | Type | Range |
|---|---|---|
| heart_rate | number | 20–300 bpm |
| rmssd | number | 0–500 ms |
| sdnn | number | 0–500 ms |
| pnn50 | number | 0–100% |
| spo2 | number | 50–100% |
| mean_ibi | number | 200–2000 ms |
| ibi_count | integer | 1–120 (server-side IBI sliding window) |