Samsung Galaxy S21 Ultra 128GB unlocked typically costs $1.51 less than Samsung Galaxy S21 128GB unlocked on eBay right now ($162 vs $164 median asking price, item + shipping). Per GB storage, Samsung Galaxy S21 Ultra 128GB unlocked is cheaper: $1.27 vs $1.28. Prices from filtered US eBay listings, checked twice a day; asking prices, not sold prices. How we price.
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Samsung Galaxy S21 128GB unlockedBuy from $107 on eBay
Typical $164 · $1.28/GB storage · 32 listings
Tracking began 2026-11-11, so there isn't enough history for a buy/wait call yet. Today the cheapest clean listing is 35% under the typical one.
Samsung Galaxy S21 Ultra 128GB unlockedBuy from $121 on eBay
Typical $162 · $1.27/GB storage · 120 listings
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.