I looked into the Google Pay Community forums about this. Their responce:
"As long as you use the same Google account credentials that you used on your primary phone."
So 2 different Google accounts may not fly. They have to be signed into the same account. So one Andriod is different than the other.
Two phones with the same Google account is ok.
@Anonymous wrote:
@ForwardLooking wrote:Why not just make your wife an authorized user?
Well, I don't know OPs reason(s) but in my case it just adds extra stuff to a credit record (which can be good or bad). Once Samsung Pay came along, my wife and I were able to use many cards that were just in one of our names. Like giving your partner your physical card, but with that, at least in the old days, they might have been asked to sign.
What's the bad stuff? The good stuff is your partner's credit will benefit from being an authorized user: their total credit limit will include the authorized card. Wouldn't you want your partner to establish their own stable creditworthiness?
In some cases you can add your credit card to both platforms, Apple and Android and in other cases it's prohibited. It depends on the card issuer. If you add it to let's say Apple and then you add it to Google/Samsung it will delete it from Apple and issue you a brand new virtual card number upon registration with the Google/Samsung device.
In the literature I've seen, they break it down as to say only one device is permitted per card on file without exclusively noting device platforms as a work around, just a point blank road block at "one device per card" all together.
The Schell gas card link below gives an example. Your best bet is to call Discover and ask.
