Apple Watch ECG App Not Available — What It Means & How to Fix It

What Does This Error Mean?

The ECG (electrocardiogram) app on your Apple Watch is not accessible or shows as unavailable. This is almost always caused by your country not being on Apple's approved list for ECG, or the feature not being set up in the Health app. ECG is only available in specific countries due to medical regulations.

Affected Models

Apple Watch Series 9
Apple Watch Ultra 2
Apple Watch SE (2nd gen)
Apple Watch Series 8
Apple Watch Series 4 and later

Common Causes

Your country or region does not support ECG (regulatory restrictions)
ECG has not been set up through the Health app on iPhone
Age in Health profile is set below 22 years (required minimum)
Apple Watch model is Series 3 or older (ECG requires Series 4 or later)
iPhone iOS version is outdated

How to Fix It

Verify your country supports ECG: check apple.com/au/apple-watch for the list of supported countries.

ECG is approved in the USA, EU, Canada, Australia, UK, Japan, and many others — but not all countries. This restriction is set by local medical regulators, not Apple.
Set up ECG in the Health app on iPhone: open Health > Browse > Heart > Electrocardiograms (ECG) and follow the setup.

ECG must be activated through the Health app before it appears on the watch. If you skip this step, the app remains hidden.
Check your age in Health: open Health app > your profile > Date of Birth. ECG requires age 22 or older.

Apple restricts ECG to adults 22 and over due to the clinical validation parameters used. If your birth date is wrong in the app, correct it.
Update iPhone to the latest iOS version.

ECG feature availability sometimes requires the latest iOS. Go to Settings > General > Software Update and install any pending updates.

When to Call a Professional

ECG is a regulated medical feature — Apple cannot enable it in unsupported countries regardless of the watch model. If you are in a supported country and ECG is still unavailable, contact Apple Support. For any health concerns, always consult a qualified medical professional — Apple Watch ECG is a screening tool, not a diagnostic device.

Frequently Asked Questions

Which Apple Watch models have ECG?

ECG is available on Apple Watch Series 4 and all newer models, including SE (2nd gen), Series 7, 8, 9, and Ultra. Apple Watch Series 1, 2, and 3 do not have the hardware for ECG and cannot be updated to support it.

Is Apple Watch ECG medically accurate?

Apple Watch ECG is FDA-cleared and can detect atrial fibrillation (AFib) with clinical-grade accuracy for that specific condition. However, it is a single-lead ECG and cannot replace a full 12-lead ECG done in a hospital. Always share Apple Watch ECG results with your doctor for proper interpretation.