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Guides

Guides for buying and selling second-hand.

The questions we get asked most, answered at the length they need. Every guide starts from what matters in our work: knowing what the item is, what condition it is in, and what others ask for it today.

How much is a used phone worth today

How to tell what a used phone is worth: model and storage, battery health, condition, the locks to check, and the price range other sellers ask today.

How we compare second-hand prices

Where the offers come from, what goes into the price, how we work out the price range and the typical price, what we leave out, and who is behind NotDone.