Google Fi, formerly known as Project Fi, is a unique cellular service that uses multiple cellular networks and Wi-Fi behind the scenes - automatically picking the best partner wherever you happen to be.

When Google first announced Project Fi in April 2015, the initial two partner networks were Sprint and T-Mobile. In June 2016, they added regional carrier U.S. Cellular to the line-up.

There are several Android phones that were designed specifically to work on Fi, but most popular phones are also compatible with Fi. You can get more information on phone compatibility here. While the list of compatible phones is now greatly expanded, not all phones can take advantage of Google Fi's multi-carrier switching, use over Wi-Fi and international features.

Last Update: October 8, 2020

Sprint is now part of T-Mobile, as per the merger that closed on April 1, 2020.

New Sprint customers are directed to T-Mobile to sign up for their plans, however, some of Sprint's legacy plans are still available in-store or over the phone. Customers on existing direct Sprint plans will be able to retain those plans for the next three years without price increases or changes to features.

The two networks still operate mostly independently with their own towers and frequency bands. Some Sprint customers can have their Sprint phones coded to make the T-Mobile network the primary network for their phones instead of Sprint. Sprint customers with recent 5G phones such as the Galaxy S10 automatically use T-Mobile as the primary network since the combined company is shutting down Sprint's 5G service.

As of October, T-Mobile is offering most Sprint smartphone customers that use the Sprint cellular network the ability to choose the "T-Mobile Network Experience". In short, TNX allows Sprint network customers with compatible devices to trade in their Sprint SIM card for a T-Mobile SIM card and move their plan to the T-Mobile network while retaining the features, billing, and terms of their original Sprint plan. You can read more about what this means here.

At present time - aside from Boost being sold to Dish Network - there are no changes to 3rd party, reseller, non-profit or MVNO plans sold on the Sprint network. However, we are continuing to monitor the situation and will update as appropriate.

Plan Information

Currently Available Plans:

Unlimited (22GB at high speed) - $70/month
Flexible - $20/month + $10/GB pay as you go up to $60, then no additional charge up to 15GB of usage.
Data-only SIM option (no charge - available to current customers only)

Plan Specifications:

Carrier Networks Used: T-Mobile, Sprint, US Cellular
Carrier Relationship: MVNO
Plan Types Available: Phone, Data only
Device Types Permitted: Any, but there is limited set of fully-compatible phones that can take advantage of all of Fi's features.
Unlimited:
- Unlimited Plan - Yes, but high speed capped at 22GB
- Flexible - After you purchase 6GB of data in a month, you get "unlimited" free high speed data up to 15GB, then speeds are reduced to 256k.
High Speed Mobile Hotspot Use: Yes
Throttling:
- Unlimited Plan - throttled to 256kpbs after 22GB
- Flexible Plan - throttled to 256kbps after 15GB
Network Management: Yes
Video Streaming Resolution: 480p
5G Access: Yes, on phones that work with FI and are compatible with T-Mobile’s 5G network.
Device Purchase Required: No
Plan Period: Month
International Roaming: Yes, high speed data in over 200 countries is included at no extra charge
- The majority of your data should be used within the US, or you risk the possibility of termination
- Google Fi does not specify what the threshold is for how long you can use the service without termination, but we have seen reports of threats of termination after 5 months of international travel
Domestic Roaming: Yes
Data Roll Over: On Unlimited Plan, no. On Flexible Plan, you pay for data as you use it.
Overage Charges: Speeds are reduced after caps are met, but additional high speed data can be added for $10/GB
Lines Permitted Per Account: 6
Extras:

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