google fi has several usage plans. they all appear to switch you to a slower data speed based on a data cap. See https://fi.google.com/about/plans?selectedplan=

google fi has several usage plans. they all appear to switch you to a slower data speed based on a data cap. See https://fi.google.com/about/plans?selectedplan=4&pli=1#compare-plans https://fi.google.com/about/plans?selectedplan=4&pli=1#compa... the highest plan, "unlimited plus", has "Unlimited data, with slower data after 50 GB per person". The lowest plan says "Pay $10/GB for the data you use, with slower data after 15 GB per person".