How can I reinstall the ecg app on my watch
It shows as uninstalled
Are you currently in a country that has not authorized the use of the ECG app?
watchOS - Feature Availability - Apple
M1 Mac mini, macOS 13.5.2; Watch, series 7 GPS/cellular, watchOS 10.0.1; iPad Pro 2nd Gen, iPadOS 17.0.1; iPhone 12 Pro, iOS 17.0.1; TV 4th Gen, tvOS 17; HomePods, audioOS 17 and Airport Express w/ Airplay 2