Xfinity Mobile’s WiFi PowerBoost lets your phone access Wi-Fi speeds in excess of the internet plan you’re paying for. So far it’s supported iPhones and Samsung Galaxy flagships and mid-rangers, but ...

Xfinity, Comcast’s internet brand, is the largest internet service providers (ISP) in the United States, serving more than 31 million broadband customers in parts of 40 states. It’s known for wide ...