Apparently, it will not cost you a single penny to add a tablet to your Project Fi plan, which is definitely good news, of course. Apart from that, you would not have to grapple with the likes of a monthly device fee, and it also does not look as though Google will be placing a levy for SIMs, although that remains unverified just yet. In other words, you pay for the amount of data that you consume, making it as fair as possible for everyone.
It has been confirmed that data-only Project Fi SIMs will play nice on the T-Mobile network only, and there will not be any kind of Sprint connectivity. Google cites that hardware differences are the main stumbling blocks when it comes to the data-only network being different from the main Project Fi network. Not only that, Google has also confirmed that the Wi-Fi Assistant feature will be unavailable on data-only Fi devices.
A maximum of nine data-only devices can be added to the current Project Fi voice plan, and among the compatible hardware include the Nexus 7 – K009 (US LTE), Nexus 9 – 0P82300 (US LTE), iPad Air 2 – Model A1567, iPad mini 4 – Model A1550, and Galaxy Tab S – Model SM-T807V.