The internet and its uses are essential to modern human life. In every aspect, it has developed into an essential instrument. Thanks to the demand and need, researchers went beyond just hooking computers up to the internet. For these studies, there is an emerging communication field known as the Internet of Things (IoT). Today, person-to-person exchanges on the web are being eclipsed by machine-to-machine exchanges. Commercial adoption of IoT even though the concept has been around for long time, it is still immature. Both the transportation and home automation sectors are expanding explosively, thanks to IoT. This review paper is focused on this review article explores the most recent achievements in the field of smart homes, with a focus on IoT technology and the challenges it presents.