A used Apple Watch can cost less than half of a new one, but which model you pick now matters more than it used to. watchOS 27, released in September 2026, dropped five Apple Watch models at once, so some of the cheapest watches on the used market no longer get new features.
This guide ranks every Apple Watch still worth considering, from the Series 6 to the Ultra 3, with current Swappa prices, watchOS 27 status, and what to check before you buy. For Galaxy Watch, Pixel Watch, and fitness trackers, start with Used Smartwatches: The Complete Guide to Buying and Selling.
Quick Answer
For most buyers, a used Apple Watch Series 10 is the best value in 2026. It averages about $233 to $240 on Swappa, roughly $160 less than a new Series 12 at $399, and it runs watchOS 27. The Series 9 (about $179 to $186) is the cheapest full-featured model still on watchOS 27, and the Ultra 2 (about $356) costs less than half the price of a new Ultra 4. Skip the Series 8 and older, the SE (2nd generation), and the first Ultra unless the price is very low, because watchOS 27 dropped them.
Which Apple Watches Get watchOS 27
Apple released watchOS 27 on September 14, 2026. It runs on six models you can buy used, plus the two new watches Apple launched this month:
- Series 9, Series 10, Series 11, and Series 12
- Ultra 2, Ultra 3, and Ultra 4
- SE (3rd generation)
watchOS 27 dropped the Series 6, Series 7, Series 8, SE (2nd generation), and the first-generation Ultra. Those watches keep working on watchOS 26, but they will not get watchOS 27 features, and Apple does not promise how long older watchOS versions get security fixes. The SE (1st generation), Series 5, and Series 4 were dropped earlier, by watchOS 11 in 2024.
watchOS 27 also needs an iPhone 11 or later, or an iPhone SE (2nd generation) or later, running iOS 27. Every Apple Watch needs an iPhone to set up, so check your phone before you buy. Android phones cannot pair with an Apple Watch.
What this means for buyers: Series 9, SE 3, and Ultra 2 are now the floor for a watch you plan to keep for several years. A Series 7 or Series 8 is still a working watch and can make sense as a kid’s first watch or a basic fitness tracker, but price it as a watch at the end of its software support, not as a long-term buy.
SE vs. Series vs. Ultra: Who Each Is For
Apple sells three Apple Watch lines. As of September 2026, the new lineup is the SE 3 at $249, the Series 12 at $399, and the Ultra 4 at $799. Apple stopped selling the Series 11 and Ultra 3 when the new models arrived, so those two are now available only used.
Apple Watch SE: The Budget Pick
The SE covers the basics: GPS, heart rate notifications, fall detection, crash detection (on the 2nd generation and later), fitness tracking, and Apple Pay. It leaves out the ECG app and blood oxygen sensor found on the Series line.
The SE (3rd generation), released in 2025, closed most of the gap. It added an always-on display, the S10 chip, wrist temperature sensing, 5G on cellular models, and faster charging. It is also the only SE that runs watchOS 27. A used SE 3 averages about $181 to $198 on Swappa, a smaller discount than most models because it is still sold new at $249.
The SE (2nd generation) averages about $118 to $131, but watchOS 27 dropped it. It is fine as a starter watch for a child or a light user. It is not a watch to keep for years.
Best for: First-time smartwatch owners, kids, and anyone who mainly wants notifications and fitness tracking.
Skip it if: You want ECG, blood oxygen, or the brightest display.
Apple Watch Series: The Mainstream Pick
The numbered Series models add the sensors the SE leaves out. Each generation added something:
- Series 8 (2022): temperature sensing and crash detection.
- Series 9 (2023): the S9 chip, the double tap gesture, and a brighter display. It is the oldest Series that runs watchOS 27.
- Series 10 (2024): a thinner design, larger 42mm and 46mm cases, a wide-angle display, and faster charging.
- Series 11 (2025): up to 24 hours of battery life, 5G on cellular models, and a more scratch-resistant display on aluminum models.
- Series 12 (2026): the S11 chip and a new health sensor system. It is the current model at $399.
For most buyers, Series 10 is the best mix of features, support, and price. Series 9 saves about $55 more if you do not care about the larger screen and faster charging. Series 11 is worth it if battery life matters most: it averages about $286 to $301, around $100 less than a new Series 12.
Best for: Anyone who wants the full health sensor suite at a used price.
Skip it if: You only need basics (buy an SE 3) or need multi-day battery life (look at Ultra).
Apple Watch Ultra: For Athletes and Outdoor Use
Every Ultra has a 49mm titanium case, the largest battery in the lineup, precision dual-frequency GPS, a programmable Action button, and a design built for diving and endurance sports.
- Ultra (1st generation, 2022): about $229 used, but watchOS 27 dropped it.
- Ultra 2 (2023): about $356 used. It has the S9 chip, a brighter display, and up to 36 hours of battery, and it runs watchOS 27. This is the value pick.
- Ultra 3 (2025): about $507 used. It adds satellite SOS and messaging, 5G, a wider display, and up to 42 hours of battery.
- Ultra 4 (2026): $799 new. It adds the S11 chip and up to 50 hours of battery.
The Ultra 2 is the best used Ultra for most buyers: it costs less than half the price of a new Ultra 4 and still gets watchOS 27. If you do not need its battery life or rugged build, a Series 10 or 11 does the same daily job for less.
Best for: Endurance athletes, divers, hikers, and anyone who wants two days between charges.
Skip it if: You just want notifications and step counts.
Used Apple Watch Prices and watchOS 27 Status
| Model (Year) | Avg. Sale on Swappa | Launch Price | watchOS 27 | Verdict |
|---|---|---|---|---|
| Ultra 3 (2025) | $507 | $799 | Yes | Premium rugged pick |
| Ultra 2 (2023) | $356 | $799 | Yes | Best rugged value |
| Ultra (2022) | $229 | $799 | No | Short-term only |
| Series 11 (2025) | $286 to $301 | $399 | Yes | Best battery life |
| Series 10 (2024) | $233 to $240 | $399 | Yes | Best overall value |
| Series 9 (2023) | $179 to $186 | $399 | Yes | Cheapest supported Series |
| Series 8 (2022) | $134 to $135 | $399 | No | Short-term only |
| Series 7 (2021) | $98 to $110 | $399 | No | Kids or basics only |
| Series 6 (2020) | $97 to $105 | $399 | No | Kids or basics only |
| SE (3rd gen) (2025) | $181 to $198 | $249 | Yes | Best budget pick |
| SE (2nd gen) (2022) | $118 to $131 | $249 | No | Starter watch only |
| SE (1st gen) (2020) | $64 to $85 | $279 | No (dropped in 2024) | Skip |
Average sale prices come from Swappa’s price pages for the GPS models as of September 24, 2026. Where a model comes in two sizes, the range covers both. Prices move with size, case material, GPS vs. cellular, condition, and demand. Launch prices are US starting prices for the smaller GPS aluminum model. The Series 12 and Ultra 4 have too few used listings for a price yet. Check current Swappa prices before you buy or sell.
The gap that matters: a Series 9 averages about $45 to $50 more than a Series 8, and that difference buys a watch that still gets watchOS 27. That is the clearest value line in the used Apple Watch market right now.
Case Size and Band Compatibility
Apple has changed case sizes several times, but the band connector has stayed the same since 2015. Bands fit across generations as long as they belong to the same size family.
| Band Family | Case Sizes That Share Bands |
|---|---|
| Small | 38mm, 40mm, 41mm, and 42mm (Series 10 and later) |
| Large | 42mm (Series 3 and earlier), 44mm, 45mm, 46mm, and 49mm (Ultra) |
Two details trip up used buyers:
- The 42mm size is in both families. On the Series 10, 11, and 12, 42mm is the smaller case and takes small bands. On the Series 3 and earlier, 42mm was the larger case.
- Ultra bands fit the large family. Apple says bands for 44mm, 45mm, and 46mm cases work on the 49mm Ultra, and Ultra bands work on those cases. Apple recommends the Ultra’s own bands for diving and rugged use.
If you already own Apple Watch bands, buy a watch in the same family and they will fit. Used bands also sell for a fraction of their retail price. For fit, smaller wrists usually prefer the 40mm to 42mm sizes, and larger wrists the 44mm to 46mm sizes. The SE 3 comes in 40mm and 44mm.
Battery Health and Cellular: What to Check Used
Battery Health
Apple Watch batteries wear down like any lithium battery. To see the current level on the watch, open Settings, then Battery, then Battery Health. Apple designs Apple Watch batteries to keep up to 80% of their original capacity at 1,000 complete charge cycles.
Swappa requires every listing to have a fully functional battery that charges and discharges properly, and there is no minimum percentage to list. Ask the seller for the battery health percentage if the listing does not show it, and factor a lower number into the price, especially on an Ultra, where battery life is the reason to buy. Battery Health in Used Electronics: What to Know explains how to judge it.
GPS vs. Cellular
Every Apple Watch has GPS. Cellular models add an eSIM so the watch can take calls, send messages, and stream music without your iPhone nearby. Apple charges about $100 more for cellular new, and cellular models usually list for more used as well. Every Ultra has cellular built in.
Cellular is worth it if you run, bike, or swim without your phone. Otherwise, GPS saves money. A used cellular watch needs to be added to your carrier plan, and it must be free of the previous owner’s Activation Lock first. Apple Watch Cellular vs. GPS: Which to Buy Used covers carrier setup in detail.
How to Buy a Used Apple Watch Safely
Before you pay, confirm three things:
- Activation Lock is off. The seller must unpair the watch from their iPhone and remove it from their Apple Account, or you will not be able to set it up. Activation Lock on a Used Apple Watch: What to Check walks through it.
- The model gets the software you want. Check the table above. Series 9, SE 3, Ultra 2, and newer run watchOS 27.
- Condition matches the photos. Look closely at the display, which scratches more easily on aluminum models, and at the back sensor. Used Electronics Condition Grades, Explained explains what each grade means.
On Swappa, staff review listings before approval. A watch cannot be listed with Activation Lock, a stolen report, cracked glass, or water damage. Payments run through PayPal with buyer and seller protection, or Stripe for select sellers, and if a watch arrives not as described, you are entitled to a refund. Swappa’s human support team is available 24/7, with a typical response in about 20 minutes.
Buyers pay a 3% fee that is already included in the listing price, plus sales tax where required. Sellers pay 3% of the sale price, listing is free, and selling fees are lower than other auction-site fees.
Upgrading to a Series 12 or Ultra 4? How to Sell a Used Smartwatch for the Most Money covers pricing and prep, and you can sell your Apple Watch on Swappa.
Frequently Asked Questions
Which used Apple Watch is the best value in 2026?
The Apple Watch Series 10 is the best value for most buyers. It averages about $233 to $240 on Swappa, runs watchOS 27, and has the larger 42mm and 46mm cases and faster charging. The Series 9, at about $179 to $186, is the cheapest full-featured Apple Watch still on watchOS 27.
Which Apple Watch models does watchOS 27 support?
watchOS 27 supports the Apple Watch Series 9, Series 10, Series 11, Series 12, Ultra 2, Ultra 3, Ultra 4, and SE (3rd generation). It dropped the Series 6, Series 7, Series 8, SE (2nd generation), and the first-generation Ultra, which stay on watchOS 26. It also requires an iPhone 11 or later, or an iPhone SE (2nd generation) or later, running iOS 27.
Is a used Apple Watch Series 8 still worth buying?
Only at the right price and for the right use. The Series 8 still works well and averages about $135 on Swappa, but watchOS 27 dropped it, so it will not get new features. For about $45 more, a used Series 9 still gets watchOS 27.
Is a used Apple Watch Ultra 2 worth it?
Yes, if you want Ultra battery life and durability. The Ultra 2 averages about $356 on Swappa, less than half the $799 price of a new Ultra 4, and it runs watchOS 27. The first-generation Ultra is cheaper, at about $229, but watchOS 27 dropped it.
Do Apple Watch bands from older models fit newer ones?
Yes, within the same size family. Bands for 38mm, 40mm, 41mm, and 42mm (Series 10 and later) cases fit each other. Bands for 42mm (Series 3 and earlier), 44mm, 45mm, 46mm, and 49mm cases fit each other, with Apple recommending Ultra bands for rugged use on the Ultra.
What should I check before buying a used Apple Watch?
Confirm that Activation Lock is off and the watch is unpaired from the seller’s iPhone, check the battery health percentage, and make sure the model runs the watchOS version you want. Also compare the condition to the listing photos. On Swappa, staff review listings, and PayPal protection covers you if the watch is not as described.
Conclusion
Match the watch to what you need. The SE 3 covers the basics, the Series 9 or Series 10 gives you every major health feature at a used price, and the Ultra 2 is the value pick if battery life and toughness come first. Keep Series 9, SE 3, and Ultra 2 as your floor so the watch keeps getting watchOS updates, and check battery health before you buy.
