Will my phone work on Google Fi?
(Android Central)

Best answer: Almost any unlocked phone will work on Fi, but phones that weren`t specifically designed for Fi may miss out on certain features like Google`s VPN and network switching. Unlocked with pure Android and full Fi compatibility: Google Pixel 3a ($350 at Amazon) Flexible plans on nearly any phone: Google Fi (From $20 per month at Google Fi) What phones are designed for Fi? When Google Fi initially launched under the name Project Fi back in 2015, it was only available for the Nexus 6. Google Fi has continued to add its own phones, including the Nexus 5X, 6P, and all Pixel devices. Even Google phones purchased from carriers are fully compatible with Google Fi. Of course, they will need to be unlocked. These phones are all designed for Fi, which means they will work with Google Fi`s VPN as well as automatic switching between Google Fi`s three networks. These phones can also connect to over two million approved hotspots to save on data and improve speed. Designed for Fi ph...