Can I exchange an opened iPhone 16 Pro for an iPhone 16 Pro Max?

If you bought from Apple, you have 14 days to return the phone for a full refund. Then, you can use the refund to purchase another phone.

If you purchased the original phone with a credit card, you may need to wait for a credit to be issued to your card.

Check with the store to get all the details.

Yes, you have 14 days from the date of purchase to return your phone for a full refund. Return it and purchase the model you want. It's OK if the box has been opened.

If you purchased it directly from Apple, you have 14 days to return it.

If you purchased it from another retailer, you will have to ask them what their return policy is.