Will I be able to turn my iPhone 11 Pro Max in to get a iPhone 13 pro max?

See the following link to calculate the value of your 11 Pro Max and how much it would take off of a new iPhone 13 Pro Max: click here: Buy iPhone 13 Pro and iPhone 13 Pro Max - Apple

The option to enter a trade-in iPhone is there after you select storage capacity and color.

Check this link...

Apple Trade In - Apple

Start here: https://www.apple.com/shop/trade-in

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