A low-power system is created with a long battery life in mind. One can carefully use low-power design strategies to reduce power consumption while maintaining correct system operation in order to lengthen battery life. The Internet of Things (IoT) is one such system where a lot of gadgets are often battery- operated and connected to the Internet. Devices connected to the Internet of Things are frequently used to collect data, drive a series of operations, and communicate the data for automation, connectivity, and data analysis. IoT communication and computing in IoT devices are the subject of so much study, which increases power consumption in those devices. This essay investigates low-power design strategies used at the architectural level. Highlights IoT elements that allow for the application of low-power design methodologies to achieve low-power consumption in IoT.