Exchange my iPhone 12 Pro Max to iPhone 12 Pro

If its been less than 14 days since you purchased the iPhone, and you purchased the iPhone from Apple directly on an Authorized Apple reseller, you can return it for a full refund and use the money to buy whatever you want.

If its been more than 14 days, and then there's no longer an exchange option with Apple, you would need to sell it privately and use the money to buy whatever you want.

If you bought it from a mother retailer, then their own return policy would apply.

Do note that the iPhone 12 Pro has less features than the iPhone 12 Max. Its not just a smaller version of the 12 Pro Max.

You may exchange your iPhone if you purchased it new from Apple in the last fourteen days.

Returns & Refunds - Shopping Help - Apple