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Best Used Samsung Galaxy S25 Deals Today

AI-curated top picks from hundreds of eBay listings. Updated daily with verified sellers and transparent pricing.

Top Picks Today

Updated: Apr 20, 2026

Product Image Samsung Galaxy S25 128GB Navy SM-S931U (T-Mobile) Fully Functional DG4939
#1

Samsung Galaxy S25 128GB Navy SM-S931U (T-Mobile) Fully Functional DG4939

Used

$319.13
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Why we picked it #1

This option gives you a 2025 Galaxy S25 for one of the lowest prices in the lineup, making it a standout for value. The condition is used, but only has minor cosmetic wear—so you may notice some light marks, but nothing major. This pick comes from a top-rated, highly trusted seller with stellar feedback, meaning you can count on a smooth buying experience. You also get a 30-day return window with return shipping covered by the seller, which minimizes risk if the phone isn't quite what you expected. You are giving up official unlocking—this device is locked to T-Mobile, so it's a great fit if you’re already with T-Mobile, but not ideal if you want to use another carrier. There's also no included charger or original box, so keep that in mind if those matter to you. Compared to others, like listing #2 (which is unlocked and has 12 months of manufacturer warranty), you're paying significantly less but missing out on the unlocked flexibility and remaining factory warranty. If saving money is your top priority and you’re okay with T-Mobile, this is a smart, low-risk buy.

Product Image Samsung Galaxy S25 128 GB | Silver Shadow | Unlocked | Minor Back Issue
#2

Samsung Galaxy S25 128 GB | Silver Shadow | Unlocked | Minor Back Issue

Used

$379.99
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Why we picked it #2

You get an unlocked Galaxy S25 that you can use with almost any carrier, plus a full year of Samsung’s manufacturer warranty remaining—huge peace of mind compared to most used or refurbished options. The condition is used but only lightly worn, so you'll likely see minimal signs of use. With a strong, top-rated seller, a 30-day return window, and return shipping covered, you can shop with real confidence here. The biggest tradeoff is price: you’re spending more than several other options, including the top-ranked listing, but that extra cost is justified by the warranty coverage and unlocked status. There's a minor back issue noted (details aren’t specific), so if having a cosmetically flawless device matters most, you might prefer a refurbished listing. If you want a phone that’s ready for any carrier and want the extra comfort of warranty protection, it’s absolutely worth the slightly higher price over listings that limit you to one carrier or lack coverage.

Product Image Samsung Galaxy S25 128GB S931U Unlocked - Excellent
#3

Samsung Galaxy S25 128GB S931U Unlocked - Excellent

Excellent - Refurbished

$427.99
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Why we picked it #3

You're getting a Galaxy S25 that's been refurbished to 'excellent' condition, so it's going to look almost new—and it's unlocked, giving you freedom to choose your carrier. This option also stands out by including a certified charging cable and free shipping, which adds convenience right out of the box. The seller has an excellent reputation and offers a 30-day return window with shipping paid, so you’re pretty well covered if anything’s not right. You’re paying more than the top two picks—almost $100 more than the best-value T-Mobile locked option—and there’s no remaining manufacturer warranty, unlike listing #2. However, what you get here is the best cosmetic condition outside of buying totally new, as well as an unlocked phone that’s ready to use wherever you want. If you’re willing to pay a higher price for a phone that looks nearly perfect and comes with a bit more confidence in its condition, this is a strong, low-risk choice—just not the bargain hunter’s top pick.

Product Image Samsung Galaxy S25 - 128GB SM-S931U  Navy (T-Mobile)
#4

Samsung Galaxy S25 - 128GB SM-S931U Navy (T-Mobile)

Excellent - Refurbished

$349.00
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Why we picked it #4

With this listing, you’re getting a certified refurbished Galaxy S25 in 'excellent' condition—a major perk if you care about how your phone looks and feels. It's priced much lower than other excellent-condition options and even beats out several 'good' or 'used' listings on price. This seller is highly rated, offers a 30-day return period (with shipping covered), and even throws in a charger and wall plug, which many listings skip. The key catch is that it’s carrier-locked to T-Mobile, so you’ll need to be on (or willing to switch to) T-Mobile to make use of it. There’s also only a short 30-day warranty from the seller, rather than a manufacturer warranty. Compared to unlocked and warranty-backed listings (like #2), you save quite a bit but give up both carrier flexibility and longer support. If you want like-new condition and value, and you’re with T-Mobile, this is one of the most affordable ways to get a nearly flawless Galaxy S25.

Product Image Samsung Galaxy S25 128GB [SM-S931U1] Navy Unlocked #Q031
#5

Samsung Galaxy S25 128GB [SM-S931U1] Navy Unlocked #Q031

Good - Refurbished

$379.00
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Why we picked it #5

Here you’re looking at a 'good' condition, refurbished S25 that’s unlocked, so you can use it with most carriers. The price is solid (in line with other mid-tier picks), and having a wall charger and cable included is a nice touch if you don’t have extras lying around. The seller is reputable and offers a 30-day return window with shipping covered, so there’s little risk if the phone doesn’t match your expectations. You are making a tradeoff on the condition—this won’t look quite as flawless as the 'excellent' options (#3 and #4), but you’re paying less as a result. There’s only a brief, 30-day warranty from the seller, which isn’t as reassuring as listing #2’s year-long manufacturer coverage. Compared to fully unlocked, excellent-condition choices, you’re saving money but giving up some cosmetic polish. This is a strong value if you want an unlocked phone at a below-average price—and you’re okay with some visible signs of prior use.

Product Image Carrier Unlocked -Samsung Galaxy S25 5G 256GB - All Colors - Grade  A
#6

Carrier Unlocked -Samsung Galaxy S25 5G 256GB - All Colors - Grade A

Used

$491.99
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Why we picked it #6

This listing gives you something unique: a 256GB model with carrier unlock (so you can use it with nearly any provider), plus a full year of warranty from the seller—about as close as it gets to buying with total peace of mind in the used market. The phone is 'used' but graded highly and comes from a reputable seller with a solid return policy. The main tradeoff is price—this is noticeably more expensive than every other option here. You're also not getting the original charger or accessories, just a basic USB cable, which feels a little stingy for the premium you're paying. Compared to top picks like listings #1 and #2, you pay a significant premium for more storage and generous warranty coverage. If you're okay spending extra for double the storage and a warranty that lets you relax for a full year, this could be worth it—otherwise, you'll find better dollar-for-dollar value elsewhere on the list.

Product Image Samsung Galaxy S25 SM-S931U T-Mobile Only 128GB Navy Very Good
#7

Samsung Galaxy S25 SM-S931U T-Mobile Only 128GB Navy Very Good

Very Good - Refurbished

$308.79
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Why we picked it #7

If you’re after the absolute lowest price, this is as cheap as it gets for a Galaxy S25 here. It’s refurbished to 'very good' condition, so you should expect a few more signs of prior use than the top picks—but nothing major functionally. The seller has a great reputation and builds in a 30-day return period (with shipping handled), which is a solid safety net. The main limitation: this phone is locked to T-Mobile, so if you need to use another carrier (or want the option in the future), you’ll need to look elsewhere—listings #2 or #3 are better for that, although they cost more. There’s no charger or box included, so factor that in if you need extras. Compared to the higher-ranked options, you’re getting the most bang for your buck, but accepting a bit more cosmetic wear and no carrier flexibility. If you just want a working, modern Samsung for as little money as possible (and T-Mobile fits your needs), this is the no-nonsense value pick.

Product Image Samsung Galaxy S25 256GB SM-S931U1 Navy Unlocked #W030
#8

Samsung Galaxy S25 256GB SM-S931U1 Navy Unlocked #W030

Good - Refurbished

$449.00
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Why we picked it #8

This listing is for a 256GB refurbished S25, so you’re getting double the storage of the standard models, which is great if you take a lot of photos or want loads of apps on your phone. The phone is unlocked and the seller is both top-rated and very responsive on returns (30 days, shipping covered), so shopping here is worry-free. The biggest downside is that you’re paying a good chunk more than for most 128GB versions—including some in much better cosmetic condition. And while it’s got plenty of storage, it only comes in 'good' refurb condition, so expect some visible wear. There’s also only a 30-day seller warranty. If having more space is a must for you and you want unlocking flexibility, this is a straightforward way to get it, but most people focused on pure value might prefer one of the cheaper 128GB listings unless you know you need the extra storage.

Product Image Samsung Galaxy S25 SM-S931U Unlocked 128GB Navy Good
#9

Samsung Galaxy S25 SM-S931U Unlocked 128GB Navy Good

Good - Refurbished

$377.99
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Why we picked it #9

With this pick, you get an unlocked Galaxy S25 that’s been refurbished to a 'good' standard—meaning it’s fully functional, but will show some visible signs of use. The seller has a great track record, shipping is smooth, and there’s a 30-day return window with free return shipping. Price-wise, you’re in the middle of the pack, but you’re not getting any warranty beyond return coverage, and the cosmetic condition isn’t as nice as the 'excellent' or 'very good' picks higher up. It does include a generic charging cable, which is handy. If you want an unlocked phone (so you’re not tied to T-Mobile), and don’t care about a few scuffs or scratches, this is a good balance between function and flexibility—just know that for a little more, you could get a phone in better condition or get longer warranty coverage with some alternatives.

Product Image Samsung Galaxy S25 128GB [SM-S931U1] Icy Blue (Unlocked) #Q007
#10

Samsung Galaxy S25 128GB [SM-S931U1] Icy Blue (Unlocked) #Q007

Good - Refurbished

$379.00
View on eBay

Why we picked it #10

You’re looking at a refurbished Galaxy S25 in 'good' condition with 128GB storage and an unlocked status—so you can use it on most carriers. The seller is highly rated, the price is fair for the category, and there’s a full month to return it with shipping on the seller if you're unhappy. It also comes with a charger and wall plug, which is a rare bonus among these picks. That said, you're paying about the same as you would for higher-ranked listings that offer better cosmetic condition (#4 costs less and comes in 'excellent' shape, though it’s T-Mobile only). Cosmetic wear is definitely a consideration here, and you only get a short seller warranty (30 days). For value seekers, this is a safe and flexible unlocked option, but you’ll get better physical condition or lower price if you’re okay with T-Mobile—or if you’re able to spend just a little more for a phone that looks newer.

Our AI Expert Finds the Best Samsung Galaxy S25 Deals, Every Day

Every day, our AI analyzes hundreds of Samsung Galaxy S25 listings across major resellers to surface the truly best deals — not just the cheapest.

What Makes Our AI-Powered Rankings Different

Most deal sites sort by price and call it a day. We go deeper. Our AI evaluates every listing across multiple dimensions:

💰 Smart Value Analysis

We compare specs, condition, and features against the asking price — not just looking for cheap, but for worth it.

✅ Condition Intelligence

Refurb grade, cosmetic notes, battery health, included accessories — we read between the lines so you know exactly what you're getting.

🛡️ Seller Trust Score

Feedback ratings, return policies, warranty coverage — we favor sellers with a proven track record of keeping buyers happy.

⚠️ Risk Detection

Missing details, vague descriptions, or red flags? Our AI catches what's not said and adjusts the ranking accordingly.

Fair, Transparent, and Updated Daily

Every listing gets the same rigorous analysis. Our scoring system weighs dozens of real-world signals — from price-to-spec ratios to seller reputation — to produce a single, transparent ranking.

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Samsung Galaxy S25

Samsung Galaxy S25: Why Buy Used?

The Galaxy S25 is Samsung's 2025 flagship -- a premium smartphone with the Snapdragon 8 Elite processor, a 6.2" FHD+ Dynamic AMOLED 2X 120Hz display, and a 50MP+12MP+10MP camera system. Buying used is a smart way to get this top-tier phone at a significant discount, especially as early adopters upgrade or trade in.

What Makes the Galaxy S25 a Great Choice

Every Galaxy S25 has the same core hardware -- the only thing that varies between units is storage capacity. That makes buying used straightforward: you're getting the same phone regardless of who owned it before.

  • Snapdragon 8 Elite processor -- Samsung's 2025 flagship chipset delivers top-tier performance for gaming, photography, multitasking, and everyday use.
  • 50MP+12MP+10MP camera system -- 50MP main, 12MP ultra-wide, 10MP 3x telephoto. Capable of detailed photos and 4K video recording in virtually any condition.
  • 6.2" FHD+ Dynamic AMOLED 2X 120Hz display -- Dynamic AMOLED 2X panel with vivid colors, deep blacks, and smooth 120Hz scrolling. Excellent for media, gaming, and outdoor visibility.
  • 12GB RAM -- Plenty of memory for smooth multitasking and app switching.
  • 128GB or 256GB storage -- Choose the capacity that fits your needs. Larger options command a premium on the used market.
  • 4000mAh battery -- Large battery with fast wired charging and Qi wireless charging.
  • Android 15 + One UI 7 -- 7 years of OS and security updates. Samsung's long update commitment means this phone will receive software support for years to come.
  • IP68 water resistance -- Dust and water resistant (up to 1.5 meters for 30 minutes).
  • Samsung DeX -- Connect to a monitor for a desktop-like experience.

Who Is This Phone For?

  • People who prefer compact phones -- The Galaxy S25's 6.2" screen offers a true flagship experience in a pocketable size.
  • Budget-conscious buyers -- The standard Galaxy S model offers the best value entry point to Samsung's flagship line. As a current-generation flagship, used prices are already notably below retail.
  • Most people -- It has a powerful chip, a capable camera system, and all the modern features you need for daily use.
  • Upgraders from older Samsung phones -- If you're coming from an S21 or older, the jump in performance, display quality, and camera capability is significant.

Smart Tips for Buying Used

  • Check Google FRP lock -- A phone with Factory Reset Protection still tied to someone else's Google account is unusable. Make sure the seller confirms FRP is cleared.
  • Verify Samsung Knox status -- Knox 0x1 means the phone was rooted or modified at some point. This permanently voids Samsung warranty and disables Samsung Pay, Samsung Health, and some enterprise features. Knox 0x0 is what you want.
  • Check IMEI status -- Should be clean (not blacklisted or reported lost/stolen). You can check this for free at imeipro.info or similar services.
  • Screen burn-in -- AMOLED displays can develop burn-in over time, especially around the navigation bar and status bar areas. Ask the seller about any ghosting or permanent marks on the display.
  • Battery health -- Samsung doesn't show battery health percentage as easily as iPhones. Check Samsung Members app data if the seller can provide it, or look at battery cycle count. On a current generation device, some battery degradation is normal.
  • Network lock -- Unlocked phones work on any carrier and command a premium. Carrier-locked phones are cheaper but restricted to one network.
  • Look for returns and warranty -- 30-day returns at minimum. Some professional sellers offer 90-day or 1-year warranties. All units are past Samsung's original warranty -- seller warranty matters more.
  • Trust the AI rankings -- Our system analyzes price, condition, seller trust, and return policies to surface the best deals. The top picks represent genuine value.

Frequently Asked Questions

Is the Samsung Galaxy S25 worth buying used?

Yes. Every unit has the same Snapdragon 8 Elite processor, the same camera system, and the same 6.2" FHD+ Dynamic AMOLED 2X 120Hz display -- there's no performance lottery. The only variable is storage size (128GB or 256GB). Buying used saves significantly off the original retail price. As a current-generation flagship, used prices are already notably below retail -- you get a Samsung flagship with 50MP camera and 120Hz display for a fraction of the current retail price.

How does used compare to refurbished?

  • Used: Sold by the previous owner. Condition varies -- check the listing carefully for cosmetic wear, screen burn-in, and battery health.
  • Refurbished: Professionally inspected, tested, and cleaned by a seller or authorized refurbisher. Often comes with a warranty and graded condition (Excellent, Very Good, Good).

Both can be great value. Our AI evaluates condition, seller trust, and return policies regardless of the label.

What should I check before buying a used Galaxy S25?

  • Google FRP lock -- Make sure Factory Reset Protection is cleared. A phone still tied to someone else's Google account is unusable.
  • Samsung Knox status -- Knox 0x0 is good. Knox 0x1 means the phone was rooted/modified, which disables Samsung Pay and voids warranty.
  • IMEI status -- Should be clean (not blacklisted).
  • Screen burn-in -- Look for ghosting or permanent marks on the AMOLED display, especially around the navigation bar.
  • Battery health -- Check the Samsung Members app data if available. Some degradation is normal for a current generation device.
  • Network lock -- Unlocked phones work on any carrier. Carrier-locked phones are cheaper but limited.
  • Return policy -- At least 30 days. Many top sellers offer longer.

What's the difference between the Galaxy S25 and the Galaxy S25+ / S25 Ultra?

The Galaxy S25 is the compact, most affordable model in the S25 series. Compared to the Plus, it has a smaller 6.2" display (vs 6.7"), a smaller 4000mAh battery, and FHD+ resolution instead of QHD+. Compared to the Ultra, the differences are larger: no S Pen, no 200MP/108MP camera, and less RAM. But the standard model shares the same Snapdragon 8 Elite chip and core camera hardware -- you're getting flagship performance in a compact, affordable package.

What's the difference between 128GB vs 256GB?

Storage is the only hardware difference between units:

  • 128GB -- The base and most common option. Fine for most users.
  • 256GB -- Good for heavy photo/video shooters or large app libraries.

Our AI factors storage into the value ranking, so higher-storage deals that represent good value will rank accordingly.

Why are prices so different for the same phone?

Pricing varies by storage tier (128GB vs 256GB), network lock status (unlocked costs more), cosmetic condition, screen burn-in presence, battery health, and seller reputation. Our AI analyzes all of these daily to surface the best-value deals.