A new card on the Google Fi app’s Home tab now tells a Pixel owner whether the phone is riding the primary network or has hopped to a second one. Google announced on Nov. 10 that Fi network switching is returning, and that a phone will move to the secondary network on its own when doing so meaningfully improves performance.
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The feature is limited to Pixel 9 and newer phones that run on a Google Fi eSIM with no other SIM active, and it rolls out gradually from Nov. 10. There is no manual switch at launch, so the choice of network belongs entirely to Google’s software and the thresholds it sets. Customers who want to know what happened after the fact can open the app, because the switching log records each move.
Abner Li of 9to5Google reported that Google Fi describes the combined service as a “super network” and the switching rule as “smart thresholds.” Google calls the two carriers behind it “two of America’s fastest 5G networks,” a marketing claim from Google, and it has not named the secondary partner. Ultra Wideband is supported on the secondary network.
Primary, secondary and the QCI priority rule
Traffic on the primary network is never deprioritized, according to Google. The secondary network carries what 9to5Google describes as the highest QCI priority, the class that governs who gets slowed first when a tower is crowded, so Fi subscribers on it should be among the last customers throttled during congestion.
Google’s own coverage page adds conditions. Fi says it will switch between the two networks to connect a phone to the stronger signal, that switching depends on connection health and battery level, that it “happens more conservatively” when the battery is low, and that it may not be available everywhere. The page says Pixel 9 and newer get the secondary network in the United States, and that actual results may vary. The same page repeats the company’s position that Google Fi Wireless is not subject to data traffic deprioritization, and it lists international coverage in more than 200 destinations at no extra cost on select plans, with Pixel 7 and newer receiving additional networks abroad on Unlimited Premium and Flexible plans.
Multiple Enabled Profiles and a long history of switching
The technique that makes this possible is Android’s Multiple Enabled Profiles, which lets one eSIM chip hold and run two carrier profiles at once. That is why the phone must use a Fi eSIM exclusively: a physical SIM or a second active eSIM would occupy the slot the secondary profile needs. Both requirements, Pixel 9 or newer and an eSIM-only setup, appear together in the 9to5Google report of the announcement, and the coverage page repeats the Pixel 9 and newer limit for the domestic secondary network.
Fi has done something similar before. In a post dated Oct. 22, 2019, product manager Daniel Chak explained that Designed for Fi phones switched among three 4G LTE networks and that the Pixel 4 added dual connect, which kept two LTE networks ready at once by pairing a physical SIM with an eSIM. Project Fi originally leaned on T-Mobile and Sprint, and the second partner was later dropped, leaving one main network until now. For subscribers, the practical result is that coverage choices once handled by a second carrier are coming back without a second SIM card.
On June 9, Jane Harnett, a senior product manager for Google Fi Wireless, described an upgraded international version of the idea in a Google blog post. Fi on Pixel 7 or newer switches between multiple international networks in selected locations, using Multiple Enabled Profiles, and 9to5Google’s coverage noted the 5G footprint reaching more than 110 countries. The domestic secondary network extends that approach to home soil.
App changes, Wi-Fi Auto Connect+ and Ask Fi
Alongside switching, the Fi app gains a “See activity” view that lists switching history and the time of the last switch, and it signals when a phone is within range of the carrier’s Wi-Fi networks. Wi-Fi Auto Connect+, which joins encrypted premium Wi-Fi in airports, malls, stores and restaurants through the Google Fi Virtual Carrier Network, is expanding beyond Pixel to select Samsung Galaxy phones, starting with the S23 and the Fold 5 and Flip 5, and to modern Motorola phones.
Fi is also adding Ask Fi, an AI chat inside the app for quick answers and guided troubleshooting, with a path to a human agent that carries the conversation context over. For new subscribers buying a Pixel 11 Pro, Google lists $500 off instantly plus $599 back over 24 monthly credits and a $10 monthly service credit for two years on Unlimited Premium, ending Nov. 18, 2026. Existing Pixel owners who are not on Fi can get 50% off select unlimited plans for 12 months through Dec. 1, 2026.
What remains unknown is which carrier sits behind the secondary connection and how often phones will actually flip. Google says the rollout reaches customers gradually, and neither the company nor 9to5Google gave a date by which every eligible Pixel 9 owner will see the new card.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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