This paper explores the transformative role of smart wearables in the evolution of cardiovascular monitoring technologies. With cardiovascular diseases (CVDs) as the leading cause of mortality globally, there's a critical need for continuous, real-time health monitoring outside traditional clinical settings. Smart wearables, ranging from fitness trackers to specialized health-monitoring devices, have emerged as pivotal tools in this regard. They offer personalized, preventive, and real-time management of health, leveraging advancements in technology to provide a continuous stream of health data previously inaccessible. This systematic review draws upon recent studies to examine the effectiveness of wearable technologies in detecting, predicting, and managing CVDs.