Google Wifi is a new type of connected system for seamless Wi-Fi coverage throughout your home, helping eliminate dead zones and buffering. It replaces your current router and works with your modem and internet service. A single Wifi point covers up to 1,500 sq. ft, a set of three covers homes up to 4,500 sq. ft. Wifi points work together so you can add more if you need additional coverage. The Network Assist technology keeps your connection fast by always selecting the clearest channel and fastest band for your devices.