Google Fi New Customers: Bring Your Own Device, Get Fi Service Credit of Expired

For the lazy ones,

$200 Fi Service Credit with Compatible Phone Activation on Google Fi Promotion Terms

Limited time offer applies to any customer new to Fi who signs up for Google Fi between 11/28/18 8:00 AM PT through 11/28/18 11:59 PM PT, activates their compatible device that was not purchased at fi.google.com or store.google.com by 12/28/18 11:59 PM PT and remains active for 30 consecutive days. See eligible phones here.

To qualify for the service credit, activation must be for full service (i.e., activation does not apply to a data-only SIM). Afterwards, a service credit will be applied to the purchaser's Fi account. Customer will receive an email notifying them of the service credit after all terms and conditions have been satisfied, and the credit will be applied to the customer's subsequent bills around 45 - 60 days after activation. If the account is paused, credits will only appear once the account is reactivated. Service credits will be applied only toward monthly service costs such as data, calls, texts, and device protection; they cannot be applied device purchase or financing.

New Google Fi users must transfer (port-in) their current personal number over to Google Fi during sign up. The number being transferred must be currently active and have been active with the previous carrier and the user since 8/28/18 12:00 AM PT.

Limit one per person. This offer is only available for U.S. residents ages 18 and older, and requires Google Payments and Google Fi accounts. Unless otherwise stated, offer cannot be combined with other offers. Offer and service credits are not transferable, and are not valid for cash or cash equivalent. Void where prohibited.

Took a while to find out what the service costs. $20 a month, just for voice/texts +$10 a GB for data.
Wife is on Tello for $20 a month including a GB. Son and I are on Xfinity, and it varies between $13 and $20 a month depending on if we use data. 99% of the time on wifi, so usually $13. And that is for 2 phones, not per phone.

fi is too expensive for our usage.

Just confirmed with support that the $20 referral credit stacks with the $200 bill credit, google voice numbers do qualify as well, so you can port them in and you get a $200 credit for every number you port in. Sounds like a pretty good deal to me! I'll be porting two numbers in, pay $35 for a month or two and then have $420 in credits to use. Cancel a line and I've got free phone for more than a year!