Atrial fibrillation (AF) and diabetes are increasingly prevalent worldwide, both increasing stroke risk. AF can be detected by patient-led electrocardiogram (ECG) screening applications. Understanding patients' views around AF screening is important when considering recommendations, and this study explores these views where there is an existing diagnosis of diabetes. Nine semi-structured qualitative interviews were conducted with participants from a previous screening study (using a mobile ECG device), who were identified with AF. Thematic analysis was completed using NVivo 12 Plus software and themes were identified within each research question for clarity. Themes were identified in four groups: 1. patients' understanding of AF - the 'concept of irregularity' and 'consideration of consequence'; 2. views on screening - 'screening as a resource-intensive initiative', 'fear of outcomes from screening' and 'expectations of screening reliability'; 3. views on incorporating screening into routine care - 'importance of screening convenience'; and 4. views on the screening tool - 'technology as a barrier' and 'feasibility of the mobile ECG recording device for screening'. In conclusion, eliciting patients' views has demonstrated the need for clear and concise information around the delivery of an AF diagnosis. Screening initiatives should factor in location, convenience, personnel, and cost, all of which were important for promoting screening inclusion.