The health of the population is a global concern, and cardiac health is an increasingly studied aspect. In the era of artificial intelligence (AI), there are many possibilities to improve the diagnosis and monitoring of our cardiac system in a non-invasive and unobtrusive and way and accessible to a wider population. This article addresses issues such as the diagnosis of heart diseases in which the heartbeat becomes irregular using wearable systems containing embedded artificial intelligence. This paper is mainly a review of reported studies that have recently been developed that demonstrate how technology is moving from cloud-based AI systems to embedded AI systems in cardiac healthcare.