Samsung Electronics GmbH Hello, Please note that proprietary Samsung Galaxy functions may not be supported by other smartphones. However, in general, the Galaxy Watch3 is compatible with smartphones running Android 5.0 (blood pressure and ECG function on Android 7.0 and above) with at least 1.5 GB RAM, as well as iPhone 5 or newer models running iOS 9.0 or above. Blood pressure and ECG only work with Samsung Gakaxy smartphones with Android 7.0 or higher. Best regards from Schwalbach, Your Samsung Service Team
