iPhone support added to Google Fi wireless internet access program
Google has expanded the range of smartphones that can use the low-cost carrier Google Fi, formerly known as Project Fi, with the service opening itself up for use on iPhones for the first time, albeit with support offered in "beta."

As part of the rebranding effort, Google Fi now includes support for a wide variety of smartphones from a number of manufacturers, rather than the limited range previously offered. As part of this, the iPhone is also formally supported by the Google-operated MVNO for the first time.
While previously it was possible to get an iPhone onto Google Fi by changing various data settings after installing the SIM, as well as the ability to use a data-only SIM in an iPad, Google's change now specifically allows newer iPhones to work straight away. Notably the device checker advises the iPhone 5S and newer models will work with the service, including the iPhone SE, but the iPhone 5C and older devices are incompatible.
Google warns Fi for iOS is in beta, meaning that not every feature of the service will be available from the outset. While it will work with iMessage straight away, some MMS settings need to be adjusted for it to work properly with non-iPhones.
Visual Voicemail will not work, however traditional voicemail will, as well as Google Fi's text message transcripts. Features including 4G LTE connectivity and no roaming fees in more than 170 countries are still offered, but international tethering is not yet supported on iOS.
There is also a new Google Fi iOS app, which is used to activate the service, check usage and bills, and to manage the account and other settings.
Google Fi costs $20 per month for unlimited talk and text, with each extra line priced at $15 apiece. Data is provided at $10 per gigabyte up until 6 gigabytes in a month, with any extra data usage on top provided at no cost due to the carrier's Bill Protection cap.

As part of the rebranding effort, Google Fi now includes support for a wide variety of smartphones from a number of manufacturers, rather than the limited range previously offered. As part of this, the iPhone is also formally supported by the Google-operated MVNO for the first time.
While previously it was possible to get an iPhone onto Google Fi by changing various data settings after installing the SIM, as well as the ability to use a data-only SIM in an iPad, Google's change now specifically allows newer iPhones to work straight away. Notably the device checker advises the iPhone 5S and newer models will work with the service, including the iPhone SE, but the iPhone 5C and older devices are incompatible.
Google warns Fi for iOS is in beta, meaning that not every feature of the service will be available from the outset. While it will work with iMessage straight away, some MMS settings need to be adjusted for it to work properly with non-iPhones.
Visual Voicemail will not work, however traditional voicemail will, as well as Google Fi's text message transcripts. Features including 4G LTE connectivity and no roaming fees in more than 170 countries are still offered, but international tethering is not yet supported on iOS.
There is also a new Google Fi iOS app, which is used to activate the service, check usage and bills, and to manage the account and other settings.
Google Fi costs $20 per month for unlimited talk and text, with each extra line priced at $15 apiece. Data is provided at $10 per gigabyte up until 6 gigabytes in a month, with any extra data usage on top provided at no cost due to the carrier's Bill Protection cap.
Comments
Maybe I’ll wait for a phone that can take advantage of Elon Musk’s SpaceX run Starlink satellite service once it goes online. Once it becomes available, expect it to be a major disruptive force in cell services and cable/satellite TV with it’s extremely low-latency, high-bandwidth service.
So 2 lines w/ "unlimited" data - runs you $95 mo. That's pretty competitive. If they threw in Google services like Music or YouTube or Play credits, it would probably get more people.
No visual voicemail and not auto switching to another carrier (it will be TMO only) is the drawback for iOS folks.
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NM - I was wrong about this. The data cap scales based on # of lines. https://support.google.com/fi/answer/6201699/?hl=en&authuser=2
2 lines = 10GB billing cap. $135 mo.
For me, the deal breaker was no IPad LTE support...
Starlink as it is currently planned has two constellations arranged like concentric shells. The low-altitude constellation is planned to be at 210 miles, so the absolute minimum round-trip distance you will ever see is 840 miles (210 up, 210 down, then the reply has 210 up, 210 down). The high-altitude constellation is going to be at 750 miles. If you have to go through a high-altitude relay, your minimum round-trip distance now goes to 3000 miles. Plus, you'll have to contend for timeslots with every other user seen by the satellite serving you, since radio waves are a shared medium. This will not be low-latency.
Here are the alleged actual details:
https://en.wikipedia.org/wiki/Starlink_(satellite_constellation)#Satellite_hardware
And here's the link to the FCC's approval for SpaceX to deploy their second lot of satellites (PDF link):
https://docs.fcc.gov/public/attachments/DOC-354775A1.pdf
Here red in Ireland I pay $18 a month for unlimited calls texts and 40gb Data on a network that offers 96% LTE coverage,
Always fascinated at the insane cost of data plans in the US
I guess it's not a bad deal for unlimited talk and text if you're not much of a data user and don't care about privacy ... think mom/dad or grandma/grandad ...
https://support.google.com/fi/answer/6181037?hl=en
Now compare this to the privacy policy for your current provider to see what differences there are if any. For instance here's the link to ATT's for those that don't know how to find it:
https://about.att.com/sites/privacy_policy/terms#collect
So again, 840 miles round-trip minimum, up to 3000 miles round-trip if you need to go through a high-altitude relay.
Having worked with satellites, I would be shocked if the total latency, including channel contention, was less than 100ms.