Mobile internet is the wireless data service that allows you to connect to the full Internet on a mobile internet-capable device through T-Mobile's network. Mobile internet-capable Internet devices from T-Mobile® include tablets, Ultrabooks, mobile hotspots, and laptop sticks.
Mobile internet can be more convenient than Wi-Fi because it allows you to connect to the Internet anywhere you get a T-Mobile data network signal, instead of having to hunt for a free Wi-Fi location. When traveling to areas with T-Mobile coverage, this saves you the chore of purchasing access and memorizing multiple Wi-Fi logins.