Mobile hot spots affect a mobile bill depending on the individual data plan and how the mobile hot spot is used. If there are devices other than the mobile hot spot on the same data plan, then mobile plan fees may increase if the data limit is exceeded. A telecommunications provider may also charge additional fees for having a mobile hot spot on a plan in addition to other mobile devices.
If a mobile hot spot has its own data plan, then it does not affect other parts of any existing mobile plan. Any data used through devices connected to the hot spot comes solely from the hot spot's data limit. The amount of data available and the price per unit of data vary across telecommunications providers.
While a mobile hot spot is convenient, as it provides high-speed Internet access anywhere inside of the provider's network, using a hot spot as a primary Internet connection is much more expensive than traditional options. While stationary Internet setups such as cable, DSL and fiber optic either have no data limits or very generous ones, mobile high-speed Internet has much smaller data limits. Using data-intensive Internet services such as video chat or media streaming through a mobile hot spot can quickly cause data limit overages, leading to high fees.