Google Pay is a payment platform that connects to your Google account and uses your existing credit or debit cards to make payments.Getty ImagesGoogle Pay is a digital payment platform that uses your credit and debit cards to make purchases.You can use Google Pay with the Google Pay or Google Wallet app.Google Pay is safe, due to tokenized transactions and your phone's passcode and facial or touch ID.Google Pay is Google's digital payment service that you can use to make mobile payments using your phone, watch or tablet.