The reason you might want to consider buying more than a single router is that Google WiFi uses mesh networking to provide better coverage across your home.
If you live in a studio apartment, one device is probably more than enough.
But if you’re in a 4,500 square foot, multi-story house, Google WiFi is the latest in a series of mesh networking products that have launched this year designed to help blanket your home with wireless internet coverage.
As a recap, Google WiFi is a “mesh” router system that helps blanket your entire house with WiFi.
Instead of having a single wireless router in your office or kitchen that can’t stretch to your upstairs or back bedroom, a system like this allows you to help reach those areas.
It’s a bit modular in that you can add on Google WiFi units as needed, depending on the size of your home.
The router supports 802.11ac dual-band WiFi, Bluetooth LE, and 802.15.4 ZigBee wireless protocols, and uses 802.11s for mesh networking so that you only need to plug a single device into your modem, but each Google WiFi router placed through your house will pick up the signal and amplify it to cover more territory.