The iPhone 17 Pro Max 512 GB in the US is currently listed at about $1,399 new, so when the iPhone 18 comes out, a realistic used or discounted price would likely be around $1,100 to $1,250, depending on condition and carrier locks. Apple’s launch pricing trend and industry estimates suggest the iPhone 18 Pro Max could arrive at a higher starting price, which would usually push the 17 Pro Max down further after launch.

What to expect

  • New/unused stock: around $1,300 to $1,400 if any remains at retail, because the official 512 GB US launch price for the 17 Pro Max was $1,399.
  • Typical resale value: around $1,100 to $1,250 once the next model is out, based on current market pricing and usual post-launch depreciation patterns.
  • Carrier deals: can be lower, but those prices often depend on trade-ins, contracts, or bill credits.

Why the range is wide

  • A cleaner device with battery health in good shape will hold value better.
  • Locked phones usually sell for less than unlocked ones.
  • If the iPhone 18 gets a price increase, the 17 Pro Max may hold value slightly better than usual.

Current benchmark

Right now, market listings show the 17 Pro Max 512 GB trading around the mid-$1,100s on average in the US, with some listings higher and some lower. That makes a post-iPhone-18 price drop into the low-$1,100s a reasonable expectation rather than a guarantee.

TL;DR: expect roughly $1,100–$1,250 for a used iPhone 17 Pro Max 512 GB in the US after the iPhone 18 launches, with retail leftovers closer to $1,399.