Project Fi’s plans appeal to many people, like me, who need data but don’t use a lot of it. This might sound great for some, but if you are one who loves watching videos on the go and stream a lot, you definitely don’t look forward to a huge bill. Today, Google announced a new feature called “Bill Protection” for its MVNO service, which caps your bill to a maximum of $80 if you blow past your data cap and consume too much data.
With Project Fi, you usually pay $10 per GB. This means that if you use up a very large amount of data, you will have a huge bill at the end of the month. This is what Google specifically wants to change. With bill protection, the maximum bill amount you receive is $80, that is if you blow past 6 GB data usage.
However, there is a small caveat here. If you cross the 15 GB mark, you will see slower speeds, as Google will throttle your connection to make sure other users get the available bandwidth.
Source: Google Blog