Start with the identity
Take an overview and a clear photo of any model label, size tag or identifying mark. Confirm the product type before looking at a price. An accessory, replacement part or smaller variant can look like a more valuable complete product.
A photo scanner such as WorthAI can help start the search. If the result conflicts with the label or the physical item, resolve that mismatch before trusting the comparisons.
Look for the costs a photo misses
- Electronics: check the model and included power supply; test relevant functions if the shop allows it.
- Clothing: inspect the size and care labels, seams, stains and alterations.
- Shoes: check both shoes, size labels, soles and material deterioration.
- Collectibles: confirm edition and completeness. A visual match does not authenticate an item.
- Large items: think about transport, storage and packing before you buy.
Compare the right listings
Match condition and contents, not just the thumbnail. Keep active asking prices separate from evidence of completed sales. A single expensive listing can be an outlier, and a low price may be for parts or one piece of a set.
Follow the used-item pricing guide to build a defensible range. If you cannot find relevant comparisons, the sensible answer may be “not enough evidence.”
Work backwards from a cautious outcome
Consider acquisition cost, selling fees, postage, packaging, repairs and the time involved. Leave room for an offer or a return instead of budgeting around the best possible asking price.
Hypothetical example: if you expect a sale at 50, buy at 20 and allow 15 for all other costs, the remaining 15 is not guaranteed profit. A lower sale, a defect or a return changes the outcome. These figures illustrate the calculation; they are not a valuation or current fee quote.
Know when to leave it
Skip the purchase if authenticity is doubtful, a vital function cannot be tested, missing parts are hard to replace, or the potential margin is too small for the uncertainty. A scanner should help you ask better questions—not pressure you into buying.
Already own the item? See the eBay listing checklist before you sell.