Can I buy an iPhone 12 Pro Max with Apple Card monthly installments?

Yes, you can go into an Apple Store or order online at the Apple Store, an iPhone that uses the esim. You can also use the Apple Card to do their installment plan.

Here is a link to an Apple Support article that goes over the Apple Card installment procedures,

https://support.apple.com/en-us/HT210644

The sale must be done correctly. You’re not Apple to do an installment after the sale is completed.

I hope this helps.

More info;

https://support.apple.com/en-us/HT211204

Yes to all.