Check Android version:

  1. Open your phone's Settings app
  2. Near the bottom, tap System And then System update
  3. See your "Android version" and "Android security update".

Check NFC:

  1. Open “Settings
  2. In the ‘Search settings’ bar, type ‘NFC’
  3. Tap and turn on NFC.

If you can’t find NFC, your Android phone can’t make contactless in-store payments; however, you will still be able to use your phone to make payments on websites and in apps.

For more details, go to Fix problems with tap-to-pay transactions - Google Wallet Help