Cheapest now $121See it on eBay →
Lowest now$121
Typical (median)$162
Per GB storage$0.95
7 days—
30 days—
Live listings120
Buy or wait? Tracking began 2026-11-11, so there isn't enough history for a buy/wait call yet. Today the cheapest clean listing is 25% under the typical one.
Cheapest Samsung Galaxy S21 Ultra 128GB unlocked listings right now
| Listing | Condition | Price + ship | ||
|---|---|---|---|---|
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black Verizon Unlocked W091634 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W094130 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U 128GB Phantom Black Unlocked W094508 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W099406 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W099765 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W101373 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W101769 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W102000 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U 128GB Phantom Black Unlocked W103608 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U 128GB Phantom Black Unlocked W103946 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Silver T-Mobile Unlocked W104430 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W104466 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U 128GB Phantom Black Unlocked W104629 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U 128GB Phantom Black Unlocked W104701 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U 128GB Phantom Black Unlocked W104702 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W105060 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W105079 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U1 128GB Phantom Black Unlocked W095357 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W099375 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W100883 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Silver T-Mobile Unlocked W100973 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G SM-G998U 128GB Phantom Black Unlocked W104703 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W105016 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Silver T-Mobile Unlocked W105041 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W105333 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W105343 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W105346 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W091270 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Silver T-Mobile Unlocked W099441 Buy It Now | Used | $121 · $0.95/GB storage free ship | View on eBay |
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Samsung Galaxy S21 Ultra 5G 128GB Phantom Black T-Mobile Unlocked W102382 Buy It Now | Used | $121 sale: was $154, −21% · $0.95/GB storage free ship | View on eBay |
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Where today's prices sit
120 live listings by price (item + shipping). The highlighted bar is the cheapest band.
Price history starts 2026-11-11 — the chart appears after the second daily snapshot.
Market read
Of 120 Buy It Now listings, 105 used (from $121), 13 refurb (from $165), 2 new (from $280). The cheapest used copy is 57% below the cheapest new one. 96% ship free; the rest add $7.57 shipping at the median. The middle half of asking prices runs $121 to $220, so anything under $121 is in the cheapest quarter. Lowest we have recorded since 2026-11-11: $121 on 2026-11-11 — today matches it.
Asking prices of US eBay listings including shipping, as of 2026-11-11 (checked twice a day); we earn a commission on purchases through these links; parts, broken units and accessories are filtered out. How we price.
Head to head
- Samsung Galaxy S21 Ultra 128GB unlocked vs Samsung Galaxy A25 5G 128GB unlocked
- Samsung Galaxy S21 Ultra 128GB unlocked vs Samsung Galaxy S21 128GB unlocked
Compare
- Samsung Galaxy S23 128GB unlocked $132
- Samsung Galaxy S24 128GB unlocked $177
- Samsung Galaxy S24 Ultra 256GB unlocked $331
- Samsung Galaxy S25 Ultra 256GB unlocked $541
- Samsung Galaxy S22 Ultra 128GB unlocked $144
- Samsung Galaxy S22 Ultra 256GB unlocked $160
- Samsung Galaxy S23 Ultra 256GB unlocked $234
- Samsung Galaxy S23 Ultra 512GB unlocked $242
- Samsung Galaxy S23+ 256GB unlocked $176
- Samsung Galaxy S24+ 256GB unlocked $219