Today only, they give you $200 service credit if you BYOD, iPhones included. I might jump on this and test it out until I run out of their free service credit.
"Already have a phone you love? Bring your phone to Fi and get $200 Fi service credit." from here: https://fi.google.com/about/phones/
Does anyone know if Google Fi works with eSim on iPhone Xs? Also, does it work with Apple Watch?
I had Fi with a Pixel, a Pixel 2 and a Pixel 3... I was almost always on T-Mobile network. Not sure if the iPhone will switch between carriers like their approved devices can but something to consider.. I assume if it does not switch between carriers you'll be on T-Mobile 24/7...
What if you live in an area with no T-Mobile service?? I’m in Alaska and our only national carriers are AT&T and Verizon.