
Nope, they're not interchangeable. Let me save you some frustration and explain what works and what doesn't.
The camera bump on these two phones is completely different. The iPhone 16 Pro has that triangular Pro camera layout. The iPhone 17 has a different design. Your case won't fit both.
Even though the phones are roughly the same height and width, the depth and camera cutout make cases incompatible. You'll need to buy a new case if you switch phones.
Different Dynamic Island positioning and slight dimension variations mean screen protectors aren't interchangeable either.
Here's where Apple does us a solid. MagSafe accessories work on both phones:
Apple keeps the MagSafe magnets in the same spot, so your MagSafe gear transfers over without issues.
Both phones use USB-C, so your cables and chargers work on both. Same with wireless charging pads, whether they're MagSafe or regular Qi/Qi2.
Budget for a new case and screen protector if you're switching. Everything else carries over.
Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from thousands of retailers, and a look at hundreds of user reviews to give you a well-rounded picture.
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