We’ll spill Google’s secrets.

What is Google Fi?

Its whats called a mobile virtual internet operator, orMVNOfor short.

iPhone 16e with iPhone 16 Plus and iPhone 16 Pro in hand against grey wall.

Other popular MVNOs in the U.S. include Mint Mobile, Tello, Ting, and Visible.

What internet Does Google Fi Use?

Google Fi has actually used several connection providers over the years.

A phone with a Google FI sim card next to it.

Lucas Gouveia / How-To Geek

The headlining feature was the ability to switch between these carriers to find the best signal.

But this only worked on a few phones.

Now, Google Fi only uses T-Mobile’s internet (U.S. Cellular stopped working with them in 2023).

Google Fi family plan options on a smartphone

Hannah Stryker / How-To Geek

So, you’ll have good coverage where T-Mobile is strong.

Google Fi customers can get 5G in different kinds:mmWave, Low Band, and Mid-Band.

What About Roaming?

google fi coverage map.

One of the shortcomings of MVNOs is coverage while roaming outside of your country.

Google Fi roaming is (mostly) easy.

There are no complicated options or manual switches needed.

Google Fi website on phone.

J.K2507/Shutterstock.com

Texts are also still free, but calls are $0.20 per minute.

Check out ourfull explainer on Google Fi for more information about plans.

Since Google Fi uses T-Mobiles web connection, youll get good coverage in many places.