These are the smartwatches that support Google Pay
Travel with Ease with Google Maps and Make Payments Seamless with Google Wallet on Sense 2 and Versa 4 - Fitbit Blog
Metrolinx - PRESTO card in Google Wallet is here – giving more ways to pay
Google Pay on Wear OS: Which smartwatches support it and how to use it - Wareable
Can't set up Google wallet on my oppo watch - Google Wallet Community
Google Pay on Wear OS: Which smartwatches support it and how to use it - Wareable
How to use Google Pay on your Wear OS smartwatch
Google Wallet for Wear OS getting more features this year - 9to5Google
Google Wallet tap to pay not working due to bugged security prompt
How to pay using Google Pay