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Apple Watch · ECG region availability

ECG not showing on Apple Watch? Start with region, model, and age

The ECG app is not available in every country. Apple maintains a list of supported regions that changes with watchOS updates. Before assuming a hardware problem, confirm your Apple Watch model is supported, your region is on the list, and your age meets the minimum threshold. Device location can also affect what the Health app displays.

Why is the ECG app not available on my Apple Watch?

The ECG app requires a supported Apple Watch model (Series 4 or later, excluding SE), a supported country or region, and a user age of at least 22 in most regions. If your device, region, and age all qualify but the app still does not appear, check that your paired iPhone region is consistent and that the Health app has completed its initial setup.

Which Apple Watch models support ECG?

Apple introduced the ECG app with Apple Watch Series 4. All subsequent numbered Series models (Series 5 through Series 9, and the most recent Series) support it, as do both Apple Watch Ultra generations. The Apple Watch SE and Apple Watch SE 2 do not include the electrical heart sensor needed for ECG.

If you own a supported model and the app is still missing, the issue is almost certainly regional — not your hardware. One quick check: does a friend in the same country with the same watch model also lack the app? If yes, it is a region gate. If no, it is worth a deeper dive.

  • Apple Watch Series 4, 5, 6, 7, 8, 9 or later
  • Apple Watch Ultra or Ultra 2
  • Apple Watch SE models are NOT supported

How Apple determines ECG region eligibility

The ECG app's availability is tied to regulatory approval in each country. Apple can only enable the feature where it has received clearance from the relevant health authority — for example, the FDA in the United States, the MHRA in the United Kingdom, and equivalent bodies elsewhere.

Your paired iPhone's region setting, your Apple ID country, and the device's current location may each play a role in whether the feature appears. Apple does not publicly document the exact signal priority, but in practice all three should be aligned to a supported region.

  • Regulatory approval varies by country
  • iPhone region setting should match a supported country
  • Apple ID country may also factor into availability
  • Device location can affect Health app feature visibility

When device location matters for ECG setup

Even after meeting the model, region, and age requirements, some users report the ECG app appearing only after their phone detects it is physically in a supported country. A Hong Kong user who bought their watch in the US, for example, may find the app appears after setting a Hong Kong target. This is not guaranteed — it is a pattern reported by users, not a documented Apple behavior. This is not officially documented by Apple, but the Health app is known to gate certain features behind a location check.

If you have confirmed all other eligibility criteria, using WLOC to set a test target in a supported country (such as Hong Kong, which is on the current ECG support list) and reopening the Health app is one way to investigate whether the location condition is the remaining blocker.

  • Health app may require a supported-country location
  • Setting a test location does not change Apple ID region
  • Hong Kong, US, UK, EU countries are commonly supported
  • Always verify against Apple's current feature-availability page

Frequently asked questions

Does changing iPhone location enable ECG?

It can help — but only if the location signal is the last remaining blocker. The ECG app also requires the correct Apple Watch model, a supported Apple ID region, an age of 22 or older, and regulatory approval in the relevant country. A location change alone does not guarantee the feature will appear.

Which countries currently support the ECG app?

Apple keeps the current list at apple.com/watchos/feature-availability/. It grows with each watchOS release — check there first — if your country is not listed, no amount of location or device configuration will enable the feature.

Does WLOC change my Apple ID country?

No. WLOC prepares a device-location test target. It does not modify your Apple ID region, App Store country, billing address, or any account-level setting.

What is the minimum age for ECG on Apple Watch?

Apple requires that the user be at least 22 years old in most regions. The exact threshold may vary by country; check the Health app after entering your date of birth.

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