The virtual Hop card works with most Android phones running Android 6 or above. (If you’re not sure which version you’re running, go to Settings and look for “About Phone” and then “Android Version.”) You’ll also need the latest version of the Hop Fastpass app. Finally, you’ll need Google Pay 1.55 or above, and Google Pay must be set as your default tap-and-pay wallet. Your phone also needs to support NFC (Near Field Communication) and HCE (Host Card Emulation), but most phones sold since about 2012 have these features.