The Internet of Things (IoT) often refers to the addition of network connectivity to ordinary objects or equipment that was previously not internet-enabled. It is about connecting everyday objects to the internet and letting them communicate with each other including human. The IoT makes technologies smarter by enabling automation, personalization, and remote control via networks of Internet-connected sensors. At the same time, IoT technologies raise significant privacy concerns, which may hinder their wider adoption. IoT applications range from smart homes and wearable gadgets to industrial automation, agriculture, healthcare, transportation, ecosystem, warfare, business, education, etc. The IoT has the all potential and prospect to completely transform our lives by enabling smarter, more connected, flexible, more relax, and more efficient systems. IoT has the potential to develop industries efficiency, increase productivity, and improve our daily lives. IoT will be more global technology, and more things will become internet-connected in future. It is an analytical paper to evaluate the IoT as global technologies, as well as depict its domains, challenges and future consequences.