How to Export Blood Oxygen (SpO2) Data
In this article
What is Blood Oxygen (SpO2) Data?
Blood oxygen saturation (SpO2) measures the percentage of oxygen carried by red blood cells. Normal SpO2 is 95-100%. Apple Watch Series 6+ measures SpO2 periodically, including during sleep.
How to Export Blood Oxygen (SpO2) Data with HealthSave
1. Download HealthSave
Get HealthSave from the App Store — it's free. No account or sign-up needed.
2. Grant Apple Health Access
When you open HealthSave, grant access to the relevant health metrics in Apple Health. Make sure Blood Oxygen (SpO2) Data is enabled.
3. View on Dashboard
Your latest data appears on the HealthSave dashboard. With Pro, you can track 7/30/90-day trends.
4. Export to CSV, JSON, or PDF
Go to the Export tab, select Blood Oxygen (SpO2) Data, choose your date range and format:
- CSV — opens in Excel, Google Sheets, Apple Numbers
- JSON — structured data for developers and APIs
- PDF — formatted report to share with your doctor (Pro)
Why Export This Data?
Share overnight SpO2 readings with your doctor for sleep apnea screening. Track SpO2 trends during altitude changes or respiratory illness recovery.
Related Metrics You Can Export
HealthSave can also export respiratory rate, heart rate, sleep data and 30+ other health metrics from Apple Health. See the full feature list or check supported devices.
Export Your Health Data Now
Free CSV and JSON export. No sign-up required.
