Samsung Health Monitor is an app that enables ECG readings and some other advanced health tracking features for Galaxy Watch users with a Samsung smartphone. However the company is now slightly tweaking it and it will be limited to users on Android 12 or newer versions of the platform.
The app support for older devices will stop on December 23, and after that, only limited services will be accessible.
Samsung Health Monitor screenshots
The notice appears on the screen once the app is updated through the Galaxy Store. It says the next version of Samsung Health Monitor (1.4.1) will not be supported on phones running Android OS 11.0 or lower.
Samsung generally updates its devices regularly, meaning only some moderately old entry-level smartphones and flagships over five-years of age will be left out.
Still if you have a Galaxy Watch with ECG or blood pressure feature tracking and a device on the wrong side of those limitations you might finally have to upgrade.