Using Google Fi as a HotspotYou can use Google Fi as a simple way to add cellular connectivity to any device that accepts a SIM card, like a mobile hotspot. You'll need to activate your Google Fi SIM card with a phone using the Google Fi app, but once the activation is done, you can put that chip in any device your plan allows. Yes, you do need a Google account to sign up for Google Fi, but you don't need to be all-in on Google to use Fi. Yes, you do need a Google account to sign up for Google Fi, but you don't need to be all-in on Google to use Fi. One final thing worth mentioning: I have not canceled my Google Fi service despite switching to Starlink for most of my hotspot needs.