Chronic obstructive pulmonary disease is a growing health concern worldwide. Telehealth can facilitate integrated COPD care by providing an opportunity for remote monitoring, early diagnosis and clinical intervention. A design for a telehealth-based system called Wearable Sensing and Smart Cloud Computing for Integrated Care to COPD Patients with Co-morbidities (WELCOME) has been proposed. This study identifies patients', informal carers' and HCPs' acceptance of and requirements for the WELCOME system in four European countries: the United Kingdom (UK), Ireland, Greece and Netherlands.