$110
Cheapest genuine used listing on eBay, 12 October 2026.
Bought new it was $799, so used is 86% below that. That is the lowest we have recorded in 18 days of tracking. It has barely moved over the last fortnight.
Of the 22 Samsung Galaxy models we track it is the 18th dearest. Its price moved on 13 of the 17 days since we started recording it. Over that period this model is down 4.3% while the category as a whole is down 8.3%.
Today's price comes from this listing: Samsung Galaxy S21 5g - 128gb - Phantom Gray - Unlocked - Scratches. We take the cheapest listing that is the actual product rather than a part, a case or a broken unit, and we record it once a day.
| Day | Cheapest used |
|---|---|
| 12 October 2026 | $110 |
| 11 October 2026 | $115 |
| 10 October 2026 | $110 |
| 9 October 2026 | $115 |
| 8 October 2026 | $115 |
| 7 October 2026 | $115 |
| 6 October 2026 | $115 |
| 5 October 2026 | $119 |
| 4 October 2026 | $115 |
| 3 October 2026 | $119 |
| 2 October 2026 | $115 |
| 1 October 2026 | $112 |
| 30 September 2026 | $115 |
| 29 September 2026 | $110 |
18 days of daily prices so far, starting 25 September 2026. As an eBay Partner Network affiliate, outbound links may earn a commission at no cost to you.
$799 at launch. The cheapest genuine used one today is $110, 86% less.
All 22 models side by side, with the value metric: Samsung Galaxy price tracker. Or see how much every category loses secondhand.