Samsung Galaxy S23+ 256GB unlocked typically costs $10.25 less than Samsung Galaxy S24 128GB unlocked on eBay right now ($280 vs $290 median asking price, item + shipping). Per GB storage, Samsung Galaxy S23+ 256GB unlocked is cheaper: $1.09 vs $2.27. Prices from filtered US eBay listings, checked twice a day; asking prices, not sold prices. How we price.