https://support.google.com/pay/answer/7454247?authuser=1&hl=en
Important: To make contactless purchases, you must have an Android phone with Near Field Communication (NFC). Check if your phone can make contactless purchases.
To find out if your bank or card supports contactless payments with Google Pay on your phone, choose your country below.
Australia
Austria
Belgium
Brazil
Bulgaria
Canada
Chile
Croatia
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Hong Kong
Hungary
India
Ireland
Israel
Italy
Japan
Kazakhstan
Latvia
Lithuania
Netherlands
New Zealand
Norway
Poland
Portugal
Romania
Russia
Singapore
Slovakia
Spain
Sweden
Switzerland
Taiwan
Ukraine
United Arab Emirates
United Kingdom
United States and outlying territories
when to use?