Can't add Discover card to Watch paired with iPhone 5s

Only Discover can answer that.

You might wish to let Apple know what Discover told you:

https://www.apple.com/feedback/apple-pay.html

Incorrect! You can have a 5S and an Apple Watch with your discover. A user on Macrumors was able to provide insight. Unpair your watch from your phone. Then repair the watch back to your phone, you can restore from backup when you repair so none of your settings/apps have to be re-setup. Once that is complete, shouldn't take more than 20 mins, go ahead and try to add your Discover card to your wallet. Should work just fine. I was able to add my card after this. Good luck!

I had this same problem and un-pairing and re-pairing the phone (several times) didn't fix it.

USE THE DISCOVER APP. They ask an additional security question. (You have to enter a code they text to you) and then it will work fine.

It's a problem .. I'm sorry i dont have a solution

Keyword Cash loophole

Not sure if unpair/repair helped because I did that and initially it didn't work until I realized my iPhone and Watch were on two different networks because of how Netgear sets their routers up with a separate 2.4 and a 5 that talk to each other. So the watch and phone were talking with everything else but once I put the phone on the 2.4 it paired Apple Pay right away.

Success setting up Discover with Apple Pay on iPhone 5 with Apple Watch following suggestions from post

iPhone iOS 9.1

watch 2.0

1. Setup Discover as default card on iTunes
2. Unpair watch from iPhone 5 (Takes 3-5min)
3. Pair watch and iPhone 5 (Restore from backup worked)
4. Watch setup asks to add Apple Pay with default account card (match from iTunes card)
5. Requests just the security code on back
6. Success after text verification code
7. Success adding 2nd Discover card from Apple Pay menus
8. Note: 2nd approved cards are also successfully added to iPhone 6 Apple Pay.

Prior this sequence (update, iTunes, unpair, pair) I had the Discover cards successfully paired on iP6 and a This Card is not supported on iP5+watch

The default iTunes card was AMEX and was able to added it to Apple Pay on iP5+W so the system works yet Discover cards would not.

Thanks to the suggestion to update, iTunes, unpair, pair

I have tried the following:

1) Setting Discover card up as default card in iTunes.

2) Unpairing and re-pairing (restoring backup as well as new account).

3) Linking through Discover app.

Still getting the "Could Not Add Card" error message.

Does anyone have any other suggestions??? Please???

Same here

received paper mail indicating the cards were suitable for Apple Pay while did not receive the notification for a third business discover card.

Could only setup the 2 cards that received the note not the business one.

in case calling discover could help if they are not supporting your cards.

Are you saying that Discover is supporting some cards and not others?

I was able to add the card to my ipad the other day. Then removed it wondering if that was what was preventing me from setting it up with my watch. But now I can't add it back to my ipad either.

I called Apple and Discover they both said there shouldn't be a problem and they can't figure out why.

I called Discover as well and they said they thought it was a problem on Apple's end. They had me restart the iPad and I was able to add the Discover card no problem. They could see those "tries" as they came through, even the one that failed yesterday. They haven't received any pings from the iPhone/watch. The rep said they're working on it, but who knows how long this will take...likely after their 2X cashback promotion ends.

Lol that cashback really makes new iphone must-have

Same here, did you resolve the problem now?