Apple today brought ECG functionality and irregular heart rate notifications to additional markets after debuting these health-focused capabilities in the United States last October.

The new watchOS 5.2.1 software update, now available in the General → Software Update section within the Watch app on your paired iPhone, brings a new Pride face along with ECG fictionality and support for irregular heart rate notifications in these markets:

  • Croatia
  • Czech Republic
  • Iceland
  • Poland
  • Slovakia

With this expansion, the ECG feature in Apple Watch Series 4 is now available in more than two-dozen markets worldwide. For a list of available regions for ECG functionality, visit Apple’s website. For a list of countries where irregular heart rhythm notifications are officially supported, visit Apple’s iOS Feature Availability webpage.

Apple’s watchOS 5.2.1 release notes:

This update includes new features, improvements and bug fixes:

  • ECG app on Apple Watch Series 4 now available in Croatia, Czech Republic, Iceland, Poland and Slovakia
  • Irregular heart rhythm notifications now available in Croatia, Czech Republic, Iceland, Poland and Slovakia
  • New Pride face inspired by the rainbow flag
  • Fixes an issue where the numbers on the Explorer face would not appear for some users
  • Disables accessories with insecure Bluetooth connections

The update’s security content is listed in a support document on Apple’s website.

Before you can download and install the update, place your watch on its charger and be sure that it has at least 50 percent battery and is within range of the paired iPhone. To dramatically speed up these updates, disable Bluetooth on your iPhone as soon as the update begins deploying and you see a message dying “About x minutes remaining”.

TUTORIAL: How to use the Irregular Rhythm Notifications on Apple Watch

Doing so will prompt your Apple Watch to fall back on Wi-Fi, but both the watch and the phone must have Wi-Fi enabled in Settings and be connected to the same local network.