In the contemporary landscape of technological advancement, the concept of Smart Life has emerged as a multifaceted domain, encapsulating a myriad of interconnected elements that deeply influence our daily experience. A lot of research works are published on this topic each month, and new devices continue to appear. However, after examining the existing literature, we found out the need for a consistent definition of Smart Life. This chapter addresses this limitation by providing a more precise definition of the Smart Life concept. We present various terms related to “Smart,” characterize in detail the concept of Smart Life, present a systemic view on this topic, and, finally, introduce the basic elements for Smart Life governance.