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Used Samsung Galaxy S21 5G prices: compare Mercari, Swappa, Craigslist & more

1 current listings, from $75 to $75 (median $75). Each card is the title, price, and photo only, and opens the listing on Craigslist.

Last updated Oct 10, 2026, 5:16 PM.

Best sell offer

BuyLow AI has a sell quote for the Samsung Galaxy S21 5G. The quote page shows the highest buyback bid on file for a good-condition unit, without a second marketplace fetch on this page.

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Questions

What is the price range for a used Samsung Galaxy S21 5G?

These 1 listings run from $75 to $75, with a median of $75. The rows on this page are from Craigslist.

Which marketplaces does BuyLow AI compare for Samsung Galaxy S21 5G?

The snapshot pulls Craigslist and Swappa, plus Mercari's public search and Vinted's catalog when those pages respond in time. eBay is included when a Browse API key is set. OfferUp, Facebook Marketplace, Amazon, and the other deep-link marketplaces stay as links to their own search, so this page does not copy their listing text.

When were these prices last updated?

This snapshot was updated Oct 10, 2026, 5:16 PM and refreshes about every 12 hours.

Can I sell a Samsung Galaxy S21 5G on BuyLow AI?

Yes. The sell quote for a Samsung Galaxy S21 5G shows the best buyback offer the app has for that model. This page links to it instead of starting a second price fetch.

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