Your Heart's Full Story
Apple Watch ECG readings sync automatically to Leo with interactive waveforms, day context, and provider sharing built in.
ECG Classifications
Apple Watch ECG recordings are classified into four categories, all synced and displayed in Leo.
Sinus Rhythm
Normal heart rhythm detected by Apple Watch
Interpreted by Apple's ECG App
Atrial Fibrillation
Irregular heart rhythm pattern detected
Interpreted by Apple's ECG App
Inconclusive
Recording quality needs review by a provider
Interpreted by Apple's ECG App
Not Classified
Unable to determine a classification
Interpreted by Apple's ECG App
Powerful Features
Scrollable Waveform
Pan through 30-second recordings with pinch-to-zoom for granular detail on every QRS complex.
Day Context
See medications, symptoms, vitals, and sleep from the same day as your ECG recording.
Provider Sharing
Share ECG recordings with your healthcare provider for informed clinical decisions.
PDF Reports
Include ECG summary tables and waveform images in exportable health reports.
Pattern Analysis
Correlate ECG metrics with sleep, medications, and symptoms to find patterns over time.
Timeline View
Full ECG history with summary stats and classification breakdown across weeks and months.
See Your Waveform
Interactive ECG waveforms let you explore every detail of your heart's electrical activity, right from your phone.
- Pan and scroll through 30-second recordings
- Pinch-to-zoom for detailed waveform inspection
- See classification and heart rate at a glance
- View day context alongside each recording
- Share waveform images with your provider
- Include ECG data in PDF health reports
ECG Recording
Jan 15, 2026Interpreted by Apple's ECG App
ECG Recording
Jan 15, 2026 at 2:34 PM
Medications Taken
Metoprolol 25mg, Lisinopril 10mg
Symptoms Logged
Mild palpitations at 1:45 PM
Vitals Recorded
BP 118/76, HR avg 74 BPM
Sleep Quality
7h 12m — Good quality
Understand the Full Picture
Every ECG recording is paired with your complete day context -- medications, symptoms, vitals, and sleep -- so you and your provider can spot what matters.
- See which medications were active during the recording
- Correlate symptoms logged around the same time
- Review vitals from the same day for full context
- Understand how sleep quality may affect your heart rhythm
Seamless Integration
From your wrist to your care team, every step is automatic and secure.
Apple Watch Sync
ECG recordings sync automatically in the background
Secure Sharing
Send recordings to your care team with one tap
Data Protected
AES-256 encryption at rest and in transit
Full History
Every recording stored and searchable over time
Start Monitoring Your Heart Today
Automatic sync from Apple Watch ECG recordings with full day context and provider sharing.