The 256 GB tier of the iPhone Air on Boost Mobile.

Boost Mobile pricing for the 256 GB iPhone Air isn't currently published in our database. Check Boost Mobile directly for the latest offer.
256 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 Air doesn't expand via SD card.
The 512 GB tier on Boost Mobile typically runs a few dollars more per month than 256 GB on the same plan. Check the storage-tier table above for the live monthly delta.
No — iPhone Air doesn't support expandable storage, and Apple/Samsung don't offer post-purchase storage upgrades. Pick the tier that fits your two-year plan.
Boost Mobile offers trade-in toward new iPhone Air purchases — credit varies by your old phone's condition and any active promo. Higher storage tiers typically receive proportionally larger credits.