This whitepaper presents HITLAB’s heuristic evaluation of Kardi Ai, a digital cardiac monitoring platform designed to improve heart-health outcomes through continuous ECG-tracking, real-time insights, and AI-enabled clinical support. The platform combines a lightweight wearable ECG chest strap with an intuitive mobile application, enabling users and clinicians to access long-term cardiac data that enhances early detection and ongoing heart-health management.

Using Jakob Neilsen’s Usability Heuristics for User Interface Design, HITLAB conducted a comprehensive review of Kardi Ai’s mobile application and device experience. The evaluation examined the platform’s design, interaction flow, system feedback, instructional clarity, error-recovery mechanisms, and alignment with established usability principles to determine overall effectiveness for both patients and clinicians.

Findings indicate that Kardi Ai excels in device simplicity, clinical-grade aesthetic design, intuitive onboarding, and real-time ECG visibility, making it approachable and confidence-building for users. The platform demonstrates strong potential to support continuous cardiac monitoring with minimal burden on the user. However, opportunities exist to strengthen usability improvements such as real-time recording guidance, clearer electrode preparation instructions, proactive connectivity and battery alerts, and enhanced help documentation.

Overall, Kardi Ai shows strong adherence to user-centered design and stands out as a scalable model for technology-enabled cardiac care. HITLAB’s insights provide a structured roadmap for usability enhancements that can promote greater user confidence, improved data quality, and stronger engagement across diverse patient populations.