What is an example of an Internet of Things (IoT) device?

The selected answer highlights an essential characteristic of IoT devices: the ability to connect to the internet and be controlled remotely through other devices, such as a smartphone. The light bulb that can be turned on or off with a smartphone exemplifies this concept, as it likely incorporates networking capabilities allowing it to communicate with the smartphone app over the internet. This connectivity enables users to manage their home lighting from anywhere, showcasing the convenience and automation that IoT devices provide in daily life.

In contrast, while the tire-pressure indicator, motion sensor, and wireless keyboard may include technology that enhances functionality, they do not possess the same level of interconnectedness typical of IoT devices. The tire-pressure indicator is a display feature rather than a connected device; the motion sensor, while automated, often operates independently without remote control or internet connectivity; and the wireless keyboard, though it connects to a laptop, does not incorporate broader internet connectivity or the collaborative features that define IoT.