The 512 GB tier of the iPhone 17 Pro Max on AT&T.

AT&T pricing for the 512 GB iPhone 17 Pro Max isn't currently published in our database. Check AT&T directly for the latest offer.
512 GB is comfortable for most users — about 30,000 photos, ~50 high-quality apps with media, plus several hours of 4K video. Heavy ProRes / RAW shooters and offline-music collectors should consider 512 GB or higher; iPhone 17 Pro Max doesn't expand via SD card.
The 256 GB tier on AT&T typically runs a few dollars more per month than 512 GB on the same plan. Check the storage-tier table above for the live monthly delta.
No — iPhone 17 Pro Max doesn't support expandable storage, and Apple/Samsung don't offer post-purchase storage upgrades. Pick the tier that fits your two-year plan.
AT&T offers trade-in toward new iPhone 17 Pro Max purchases — credit varies by your old phone's condition and any active promo. Higher storage tiers typically receive proportionally larger credits.