DB Labs
The Resale Math
Higher storage tiers consistently resell for more, but not by enough to fully offset their original price. After two years, a Pro model at 256 GB typically resells for $40 to $80 more than the same phone at 128 GB. The 512 GB tier adds another $50 to $100. Beyond that, the premium flattens. Apple Trade-In offers the lowest cash but the easiest process; Swappa and Facebook Marketplace pay the most but take effort. Pro models hold storage premiums best because the buyers seek out larger tiers specifically. Cleaning and resetting the phone before sale boosts perceived value too.
How Storage Affects Trade-In Offers
Apple Trade-In is the most transparent benchmark. As of April 2026, here is what Apple offered for an iPhone 15 Pro in good condition:
- 128 GB: around $400
- 256 GB: around $450
- 512 GB: around $510
- 1 TB: around $550
The premium for stepping up one tier is roughly $50 to $60 at the trade-in counter. Apple originally charged $100 per tier when new, so you recover about 50 percent of the upgrade through trade-in alone. Add two years of less storage stress and the math usually justifies the original choice.
Pro vs Standard: Different Patterns
Standard iPhone models (non-Pro) hold storage premiums less well. Buyers of used standard iPhones tend to be cost-sensitive and pick whichever tier costs least, so the 128 GB version sells faster. Pro models attract buyers who specifically want more storage for ProRAW or video, so the 256 GB and 512 GB Pros command real premiums.
Pro Max models are the strongest. The 512 GB and 1 TB Pro Max are sometimes the only used phones available in those tiers within a region, which lets sellers ask near-new prices.
What Else Affects Resale
Storage is one factor among many. The biggest movers in 2026:
- Cosmetic condition. A cracked screen drops value 20 to 40 percent. A clean, scratch-free phone earns the top of any range.
- Battery health. 90 percent or higher is the sweet spot. Below 80 percent, value drops sharply because the buyer faces a battery replacement.
- Original box and accessories. Adds $20 to $40 for collectors and gift buyers.
- Activation Lock removed. A phone still signed in to Apple ID is essentially unsellable. Always erase fully before listing.
- Color. Standard colors (Black, White, Natural Titanium) hold value best. Limited edition colors fluctuate.
Selling Channel Comparison
Different channels trade speed for cash:
- Apple Trade-In: Easiest. Lowest cash. Instant credit toward new purchase. No risk.
- Carrier Trade-In: Sometimes higher than Apple, but locked to a new line. Promotions inflate offers temporarily.
- Back Market and Decluttr: Mailed in for inspection. Pay 10 to 20 percent more than Apple. Takes 5 to 10 days.
- Swappa: Peer-to-peer. Pays the most. You ship and handle disputes if any arise.
- Facebook Marketplace and Craigslist: Local cash. Highest payout. Most effort and some risk.
Should You Buy Higher Storage for Resale?
If you are torn between two tiers, here is the honest math. The $100 jump from 128 to 256 GB on a Pro model is almost always worth it: better day-to-day experience, $50 to $80 of resale recovery, and you can shoot ProRAW without panic. The next jump (256 to 512 GB) is more discretionary. Recovery is around $40 to $60, and the day-to-day benefit only matters if you actually fill 256 GB. The 1 TB and 2 TB tiers have the worst resale ratio because so few used buyers need that much space.
If you want pure resale value, buy a standard color, treat the phone gently, replace the battery before selling if it has dropped below 85 percent, and pick the tier that genuinely fits your needs. Storage choice for resale is real but secondary to those basics.