A single Wifi point covers homes up to 1,500 sq. ft. while the three pack covers homes up to 4,500 sq. ft. You may need additional Wifi points, for example if you have a long narrow home or thick walls.
Will it work with my Internet Service Provider and modem?
Yep! Google Wifi works with almost all Internet Service Providers, and is compatible with almost all modems.
I have a combination modem/router, can I use Google Wifi?
Definitely. Google Wifi will replace the router function of your combination device. You can turn off the router function on your combination device by enabling bridge mode.