A smart device is a network-connected device that has the ability to autonomously learn, adapt and respond to user interactions. Smart devices are a central component of the Internet of Things (IoT) and Industry 4.0. A clear definition of what qualifies as a smart device is vital for technology consultants and researchers developing frameworks to execute the IoT and Industry 4.0.
In this article, we propose a simple and straightforward smart device definition based on an analysis of the literature. Our definition of a smart device includes a sensor, a processor and a connectivity module that allows it to be connected to a wireless network, either directly or via another smart device. A smart device is also context-aware and can be mobile. Finally, a smart device can also store data.
The most common uses of smart devices are found in the home where they help consumers improve their lifestyles and productivity. For example, a smart speaker with Alexa or Google Assistant can act as the hub of your smart home ecosystem and allow you to control other devices and gadgets by voice. A smart coffee maker can brew a cup of coffee at a programmed time or create a recipe based on the ingredients you have in your fridge. Smart kitchen appliances such as slow cookers and toasters can be controlled remotely and automatically. Smart household monitors can detect power surges or other potential issues and alert you to them.
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