Project Fi is rolling out a new unlimited data named Bill Protection. It assures that individual users who use more than 6GB of data a month will be charged one flat rate and, like current Fi plans, if you use under 6GB in a month, you are credited back money for those unused gigs.
The plan is being rolled out today and it is for individual users as well as groups who are all on Project Fi. For individual users, the maximum out of pocket per month would be $80 per month. That is $60 for the 6GB plus $20 for the calls & text portion of the service. If you go above those 6GB, you still only pay $80. If you have two members in a group, the maximum cost is $135 with a data plan level of 10GB. There is a calculator to help you understand the costs for your plan