How we turn market data into a useful estimate.
We collect public prices, compare like with like, remove misleading extremes, and show the result with its freshness and source count.
Four checks before a number reaches the page.
Current public prices
We review cash buyback offers, trade-in programs, and used-marketplace listings.
Like with like
We align model, storage, condition, and carrier status before comparing values.
Remove misleading extremes
Expired promotions, obvious outliers, and mismatched configurations do not define the estimate.
Weekly updates
Each model page shows the date and available source count for its current dataset.
What the two prices mean
The best current public cash-buyback reference we found for the selected configuration. It is not a guaranteed quote.
A typical public asking price for a comparable used device. Retailer fees, warranty, and seller margin can create a gap.
How adjustments work
Base values are normalized around a good-condition, unlocked configuration. Storage tiers follow observed model pricing where available. Condition and carrier adjustments use consistent multipliers when the public dataset is too small for a stable direct comparison.
If current comparable buyback references cluster between $340 and $390 while one temporary promotion lists $460, the estimate favors the repeatable market range instead of treating the promotion as a normal offer.
What can change your final quote
Instant Phone Worth is an independent reference tool. We do not inspect your device and our estimates are not guaranteed offers.