A smartwatch ECG app records through a wearable; a handheld ECG device uses a separate sensor unit. Compare the exact model's labeling, recording workflow, compatible app and FDA record.
Smartwatch and handheld ECG products use different hardware. This comparison covers the physical device, app and regulatory record; it does not interpret ECG results.
Compare the product
| Check | Smartwatch ECG app | Handheld ECG device |
|---|---|---|
| Recording hardware | Electrical sensor built into a compatible wearable | Separate electrodes or handheld sensor |
| Workflow | Wearable paired with its supported app | Device paired with its supported app or display |
| Compatible models | Check watch generation, phone and region | Check device model, phone and region |
| FDA record | Search the exact app and manufacturer | Search the exact device and manufacturer |
| Intended use | Read the app’s instructions for use | Read the device’s instructions for use |
FDA’s record lists Apple’s ECG 2.0 app, K201525. The agency also lists the KardiaMobile Card, K211668. These records identify specific devices and submissions; check the current record and labeling for any product being considered.
Regulatory-status checklist
- Copy the exact product and app names from the product label.
- Search the FDA database by manufacturer and device name.
- Open the relevant 510(k) summary or authorization record.
- Compare the record’s intended use with the manufacturer’s current instructions.
- Review the supported phone, wearable and geographic availability.
For broader regulatory terms, read FDA-cleared vs wellness features, compare smart rings and smartwatches, and check wearable feature specifications. Browse heart and blood pressure devices.
This page describes device features and regulatory records. Ask a doctor about ECG results or health decisions.
Sources
Common questions
Are smartwatch ECG apps all FDA cleared?
No. Regulatory status belongs to a specific product and intended use. Check the FDA record for the named app and device.
Is a handheld ECG device the same as a smartwatch ECG app?
They have different hardware and workflows. Compare the product instructions and device record for each model.
Does FDA clearance make two ECG products interchangeable?
No. Read the labeling and intended use for each specific device.