The primary objective of this research project is to prevent heart failure decompensation through a wearable-based telemonitoring system (smartwatches), with a focus on the development and validation of a multiparametric predictive score.

Inclusion Criteria Age ≥ 18 years Diagnosis of stable heart failure Cognitively able to participate in the study No significant hearing impairment No significant visual impairment Sufficient ability to read and write in Italian Ownership of a smartphone with internet access

Exclusion Criteria Not fully compensated heart failure Lack of a smartphone with internet access

Patients followed in the heart failure outpatient clinic or previously hospitalized in hospital wards (e.g., cardiology, cardiac surgery, or internal medicine).