inclusion criteria: * confirmed sars-cov2 infection and clinical covid-19 disease * age ≥18 years * presence of ≥1 relevan cardiovascular condition, defined as (or): * atrial fibrillation * systolic or diastolic heart failure * lv ejection fraction \<50% * coronary artery disease with past pci or cabg * past myocardial infarction * diabetes mellitus * arterial hypertension (treated or untreated) * active smoking * chronic obstructive lung disease * obesity (bmi ≥30kg/m2) * availability of smartphone and sufficient internet connectivity at home * ability to use smartwatch * informed consent to study participation and data protection concept

inclusion criteria: * confirmed sars-cov2 infection and clinical covid-19 disease * age ≥18 years * presence of ≥1 relevan cardiovascular condition, defined as (or): * atrial fibrillation * systolic or diastolic heart failure * lv ejection fraction \<50% * coronary artery disease with past pci or cabg * past myocardial infarction * diabetes mellitus * arterial hypertension (treated or untreated) * active smoking * chronic obstructive lung disease * obesity (bmi ≥30kg/m2) * availability of smartphone and sufficient internet connectivity at home * ability to use smartwatch * informed consent to study participation and data protection concept

inclusion criteria: - confirmed sars-cov2 infection and clinical covid-19 disease - age ≥18 years - presence of ≥1 relevan cardiovascular condition, defined as (or): - atrial fibrillation - systolic or diastolic heart failure - lv ejection fraction <50% - coronary artery disease with past pci or cabg - past myocardial infarction - diabetes mellitus - arterial hypertension (treated or untreated) - active smoking - chronic obstructive lung disease - obesity (bmi ≥30kg/m2) - availability of smartphone and sufficient internet connectivity at home - ability to use smartwatch - informed consent to study participation and data protection concept

inclusion criteria: - confirmed sars-cov2 infection and clinical covid-19 disease - age ≥18 years - presence of ≥1 relevan cardiovascular condition, defined as (or): - atrial fibrillation - systolic or diastolic heart failure - lv ejection fraction <50% - coronary artery disease with past pci or cabg - past myocardial infarction - diabetes mellitus - arterial hypertension (treated or untreated) - active smoking - chronic obstructive lung disease - obesity (bmi ≥30kg/m2) - availability of smartphone and sufficient internet connectivity at home - ability to use smartwatch - informed consent to study participation and data protection concept

inclusion criteria: - confirmed sars-cov2 infection and clinical covid-19 disease - age ≥40 and <60 years - presence of ≥1 relevan cardiovascular condition, defined as (or): - atrial fibrillation - systolic or diastolic heart failure - lv ejection fraction <50% - coronary artery disease with past pci or cabg - past myocardial infarction - diabetes mellitus - arterial hypertension (treated or untreated) - active smoking - availability of smartphone and sufficient internet connectivity at home - ability to use smartwatch - informed consent to study participation and data protection concept

inclusion criteria: - confirmed sars-cov2 infection and clinical covid-19 disease - age ≥40 and <60 years - presence of ≥1 relevan cardiovascular condition, defined as (or): - atrial fibrillation - systolic or diastolic heart failure - lv ejection fraction <50% - coronary artery disease with past pci or cabg - past myocardial infarction - diabetes mellitus - arterial hypertension (treated or untreated) - active smoking - availability of smartphone and sufficient internet connectivity at home - ability to use smartwatch - informed consent to study participation and data protection concept