What a used Samsung Galaxy S21 Plus actually sells for, from 20 listings Flipify tracked on eBay and Facebook Marketplace since Oct 30, 2026. Updated .
A used Samsung Galaxy S21 Plus typically sells for $208 (US Dollar), with most listings between $199 and $210. It's cheapest on Facebook Marketplace ($185 typical). Anything under $199 is a good deal.
Greyed-out options have too few listings to price.
| Day | Median | Listings |
|---|---|---|
| Oct 30, 2026 | $210 | 8 |
| Oct 31, 2026 | $208 | 6 |
Listings priced at least 10% under what that model usually goes for. Titles are the seller's own; good deals usually sell the same day, so some may be gone.
| Found | Listing | Price |
|---|---|---|
| Oct 31 | Samsung Galaxy S21 Plus(opens Facebook Marketplace)Used · Facebook Marketplace | $18511% below typical |
| Oct 27 | Samsung Galaxy S21 Plus(opens Facebook Marketplace)Used · Facebook Marketplace | $18511% below typical |
| Oct 26 | Unlocked Samsung Galaxy S21 Plus(opens Facebook Marketplace)Used · Facebook Marketplace | $18511% below typical |
| Oct 26 | Samsung Galaxy S21 Plus(opens Facebook Marketplace)Used · Facebook Marketplace | $18511% below typical |
| Oct 25 | Samsung Galaxy S21 Plus(opens Facebook Marketplace)Used · Facebook Marketplace | $18511% below typical |
Flipify watches every marketplace and alerts you seconds after an underpriced Samsung Galaxy S21 Plus is listed.
How we calculate this: asking prices from public marketplace listings Flipify matched to the Samsung Galaxy S21 Plus, one per listing, with placeholder and outlier prices removed. Each currency is its own market of local listings, not a conversion. Asking prices are not sale prices.