An unlimited data hotspot is a location or device that provides an unrestricted Internet connection for computer, tablet and cellphone users. Some Internet service providers offer mobile hotspot devices that provide users with a high-speed connection to the Internet when they're away from their home or work network.
There are also many free Wi-Fi hotspots in public libraries and coffee shops that offer unlimited wireless data connections. The main disadvantage is that the user must remain within the range of that location's Wi-Fi signal.
As of 2014, most ISPs no longer offer truly unlimited data plans for their mobile hotspot devices and cellphones. They offer plans ranging from two to three gigabytes of data per month at their fastest speeds. When the user surpasses the monthly limit, the ISP throttles or slows the data connection down to 2G or 3G, which is barely sufficient by 2014 standards.