To export Apple Watch ECG data, HealthSave reads your electrocardiogram results from Apple Health and writes them to CSV or JSON: the classification (Sinus Rhythm, Atrial Fibrillation, and the inconclusive states), the average heart rate, the sampling frequency, the number of voltage measurements, and the recording date and time. It exports the ECG result, not the raw microvolt waveform, which is exactly what you need to track your rhythm history over time.
What you get (and what you don't)
| Exported by HealthSave | Not exported |
|---|---|
| Classification (Sinus Rhythm, Atrial Fibrillation, inconclusive states) | Raw microvolt-by-microvolt waveform |
| Average heart rate for the reading | The drawn ECG strip image |
| Sampling frequency (Hz) and number of voltage measurements | Any re-interpretation, HealthSave reports Apple's result as-is |
| Recording date and time |
If you need the full clinical waveform PDF of a single ECG, Apple's own Health app can export that one reading. HealthSave's job is the history: every ECG you've ever taken, as structured rows you can sort, filter, and chart.
Why export your ECG history
- Track Atrial Fibrillation over time. A dated log of classifications shows how often AFib appears, which a single reading can't.
- Share a pattern with your cardiologist. Bring a clean table or PDF instead of scrolling the Health app in the exam room.
- Correlate with other metrics. Line ECG dates up against heart rate and HRV trends.
Export it in 5 steps
- Download HealthSave free from the App Store, no account.
- Grant Health access, including Electrocardiogram (ECG), when prompted.
- Select ECG in the Export tab and pick a date range.
- Choose CSV or JSON, CSV for spreadsheets, JSON for analysis.
- Export and share, save to Files, email it, or make a doctor-ready PDF (Pro).
What's free vs Pro
| Capability | Tier |
|---|---|
| Export ECG results to CSV / JSON | Free |
| Date-ranged PDF report for your doctor | Pro |
| Unlimited history, background sync, REST API | Pro |
Pro is a one-time $24.99 (US price, varies by region), Family Sharing included, no subscription.
Honest limits
- Results, not raw waveform. You get classification, average HR, and metadata, not the microvolt trace.
- Apple's classification is final. HealthSave reports it verbatim and does not diagnose anything.
- iOS only; ECG must already be in Apple Health (recorded on a supported Apple Watch).
- Accuracy is Apple's. The ECG feature and its labels come from your Watch and Apple's algorithm.
Related
- How to export Apple Health data, the full guide across every metric.
- Export heart rate data from your iPhone and Watch.
- Export HRV and sleep data, and what the numbers mean.
- Bring a clean health trend to your doctor, the PDF report.
FAQ
Does HealthSave export the raw ECG waveform?
No. HealthSave exports your ECG results, the classification (such as Sinus Rhythm or Atrial Fibrillation), average heart rate, sampling frequency, number of voltage measurements, and the recording date and time. It doesn't export the raw microvolt-by-microvolt waveform.
What ECG classifications can it export?
Whatever Apple recorded: Sinus Rhythm, Atrial Fibrillation, Inconclusive (low or high heart rate, poor reading, or other), Unrecognized, or Not Set. HealthSave reports Apple's classification exactly, it doesn't re-interpret your ECG.
Can I track my AFib history over time?
Yes. Export every ECG you've taken to CSV or JSON and you get a dated log of classifications and average heart rates, useful for spotting how often Atrial Fibrillation appears and for sharing the pattern with a clinician.
Is exporting ECG data free?
Yes. CSV and JSON export are free. PDF reports for your doctor and unlimited history are part of the one-time Pro upgrade.
Can I share my ECG history with my doctor?
Yes. Export a date-ranged PDF with HealthSave Pro, or send the CSV. For the underlying clinical PDF of a single ECG, Apple's Health app can also export that directly.
HealthSave is not a medical device and does not diagnose, treat, cure, or prevent any disease or condition. ECG classifications are produced by Apple Watch and Apple's algorithm; HealthSave only reports them. Always consult a qualified clinician about your heart health. The accuracy of any health data depends on your device and its sensors.
Get HealthSave
Download free, export your ECG history to CSV or JSON, and unlock the doctor-ready PDF with a one-time Pro purchase when you need it.
Download HealthSave on the App Store