A mobile hotspot is a feature available on some smartphones and other mobile devices that allows them to function as a wireless access point, providing internet connectivity to other nearby devices that are Wi-Fi enabled. Essentially, a mobile hotspot turns a mobile device into a wireless router that can share its cellular data connection with other devices, such as laptops, tablets and other smartphones.

To use a mobile hotspot, the user typically needs to activate the feature on their device and create a Wi-Fi network with a unique name and password. Other devices can then connect to the network and use the mobile device's cellular data connection to access the internet.

Mobile hotspots are a convenient way to access the internet on the go, especially when a Wi-Fi network is not available, or the user wants to avoid using public Wi-Fi, which can be less secure. However, it is important to be mindful of data usage as mobile data plans often have limited data allowances. Using a mobile hotspot can quickly consume a significant amount of data.