Wearable sensors play a crucial role in sports and fitness by providing real-time data on physical performance and health metrics. Devices such as smartwatches and fitness trackers monitor vital signs like heart rate, speed, and sleep patterns. This data enables athletes and fitness enthusiasts to track improvements, set goals, and adjust their training regimens accordingly. Additionally, these sensors can help prevent injuries by identifying fatigue or overexertion through analytical insights. Consequently, they empower users to make more informed decisions about their health and fitness.