The ultra low power sensing systems are most powerful and offer tremendous opportunity in different IoT applications like healthcare monitoring systems, human activity recognition, and assets of personal environments exposures. The ultra low power systems satisfy the requirements of less training, the maximum comfort level of users, and minimum complexity with long-duration monitoring systems. The ultra low power sensing systems are widely employed in healthcare-based IoT environments, as the wearable sensors increase the survival rate of humans.
   The ultra power sensing models consume less power and ultimately achieve high performance in self-powered operations. The ultra power sensing systems necessitate developing different types of continuous, real-time, and wearable sensors to provide benefits to diverse IoT application scenarios. In a biomedical IoT system, the miniaturized platform technologies with ultra power sensing are essential to perform biomedical sensing behaviors of the assistance center.