Is there any extra watermelon card bound to iphone that can be transferred out?

You can turn it out. You can transfer from the iphone in the following ways:

1, open the wallet application of the mobile phone.

2. Select "Scan and Add Card", and then select "suica" as the recharge card.

3. Enter the last four digits of the card number on the back of the watermelon card and click "Next".

4. Enter the recharge amount and click "Transfer from existing card".

5. Place the upper back of the mobile phone near the card reader and start to transfer the balance.

6. After the transfer is successful, you can check the card and balance in the mobile wallet and suica application.