Name: Sell My iPhone
Address: GB

Sell Apple Watch Series 10 in the UK: 42mm, 46mm & Trade-In Value (2026)

Looking to sell your Apple Watch Series 10 in the UK? Sell My iPhone is currently particularly interested in buying Series 10 smartwatches, including 42mm and 46mm models in aluminium and titanium. Whether you've upgraded to Series 11 or 12, switched to an Ultra or simply stopped wearing yours, it's worth checking whether we can make you an offer.

Introduced in September 2024, Apple Watch Series 10 remains a capable smartwatch in 2026. It features a slim design, an Always-On Retina display, fast charging and many of Apple's health and fitness features.

Importantly, Apple Watch Series 10 is compatible with watchOS 27, meaning it remains supported by Apple's current major Watch operating system.

That makes it an attractive option for somebody who wants a relatively modern Apple Watch without necessarily purchasing the latest generation.

But how much is yours worth? Does the 46mm version sell for more than the 42mm? Is titanium worth more than aluminium? And can you sell a Series 10 with scratches or reduced battery health?

This guide explains everything you need to know before selling.

Sell your Apple Watch Series 10 — check your trade-in options

Quick answer: To sell an Apple Watch Series 10 in the UK, identify whether you have the 42mm or 46mm version, check if it is GPS or GPS + Cellular, and confirm whether the case is aluminium or titanium. Inspect its screen, battery and functionality before searching for the model on Sell My iPhone. Depending on the listing, you may see a price or be asked to submit a custom quote request.

How much is an Apple Watch Series 10 worth in 2026?

There is no single resale value that applies to every Apple Watch Series 10.

Although all Series 10 models share the same generation of hardware, they were released in several configurations.

The original retail price varied depending on the size, case material and connectivity. These differences can also affect the second-hand market.

A clean 46mm titanium Series 10 may be assessed differently from a 42mm aluminium GPS model.

However, the most expensive configuration when new does not automatically guarantee the highest resale offer today.

Condition and demand also matter.

What affects Apple Watch Series 10 resale value?

Factor	Why it matters
Case size	Series 10 comes in 42mm and 46mm
Material	Aluminium and titanium are different configurations
Connectivity	GPS and GPS + Cellular versions have different capabilities
Display	Scratches, cracks and touchscreen faults affect condition
Battery health	Reduced capacity can affect usability
Casing	Heavy scuffs and dents may influence the offer
Functionality	Buttons, sensors, speaker and charging should work
Activation Lock	The Watch needs to be free from its previous owner's account
Current market	Trade-in values can change as newer models arrive

Because prices change, the most useful approach is to check the current selling options for your exact Series 10, rather than relying on a historical price.

Sell My iPhone is particularly interested in acquiring this model.

Check whether we can make you an offer for your Series 10

Where can I sell my Apple Watch Series 10 in the UK?

You have several options, including specialist trade-in services, private marketplaces and manufacturer trade-in programmes.

Each has advantages.

Sell to a specialist smartwatch buyer

A specialist used-technology buyer lets you submit your Watch's details without arranging a private sale yourself.

Sell My iPhone is currently interested in purchasing Series 10 smartwatches.

You can search for the correct device, provide the requested specification and condition details, and follow the offer process shown on the listing.

For selected products, the website uses custom quote requests.

This means the team can review your device and determine whether an offer is possible based on its condition and the current market.

Sell your Series 10 privately

Private marketplaces can be useful if you're comfortable organising the sale.

You may be able to set your own asking price, but you will need to manage:

Photographs and listing details

Questions from buyers

Negotiations

Payment

Packaging and delivery

Potential disputes

Remember that an advertised asking price is not necessarily the amount somebody will pay.

Trade in with Apple

Apple also operates a trade-in programme.

This can be convenient when purchasing another Apple device, although offers and available payment methods depend on the programme's current terms.

If you've already upgraded, compare your options before choosing where to sell.

Can I sell my Apple Watch Series 10 42mm?

Yes. The 42mm Apple Watch Series 10 is one of the configurations Sell My iPhone wants to acquire.

It is the smaller of the two Series 10 case sizes.

Apple offered the 42mm model in aluminium and titanium, with different connectivity configurations.

The important options include:

42mm aluminium GPS

42mm aluminium GPS + Cellular

42mm titanium GPS + Cellular

Before requesting an offer, make sure you know which version you own.

Is the 42mm Apple Watch Series 10 worth selling?

Potentially, yes.

The smaller size can appeal to buyers who prefer a lighter, more compact smartwatch.

It still offers the main Series 10 features, including the Always-On display, health tracking and S10 processor.

A well-maintained 42mm Series 10 remains useful even after its original owner has upgraded.

Does 42mm mean it is less valuable?

Not automatically.

A larger version may have a different resale value, but the difference depends on the exact configuration and market.

For example, a clean 42mm titanium model should not be treated as identical to a heavily worn 46mm aluminium model.

The best way to establish its value is to submit the correct product information.

Search for Apple Watch Series 10 42mm

Can I sell my Apple Watch Series 10 46mm?

Yes. Sell My iPhone is also particularly interested in the 46mm Series 10.

The 46mm version has a larger display and case than the 42mm model.

It was available in the following main configurations:

46mm aluminium GPS

46mm aluminium GPS + Cellular

46mm titanium GPS + Cellular

The larger display may appeal to buyers who prefer more screen space for notifications, workouts and everyday interactions.

However, an offer still depends on the Watch's condition.

Is 46mm Series 10 worth more than 42mm?

It can be, but there is no permanent rule.

The resale market reflects what buyers want at a particular time.

Material, connectivity and condition may be just as important as case size.

A 46mm Watch with a cracked screen may be worth less than a smaller model in excellent condition.

Check the exact listing rather than assuming the larger Watch guarantees a higher price.

Search for Apple Watch Series 10 46mm

Does GPS or Cellular affect Apple Watch Series 10 trade-in value?

Yes, it can.

Apple Watch Series 10 was sold in both GPS and GPS + Cellular versions.

The difference matters because Cellular models have additional connectivity capabilities.

Apple Watch Series 10 GPS

The GPS version uses its connection to a paired iPhone or supported Wi-Fi networks for many connected functions.

It is suitable for people who normally carry their iPhone.

Apple Watch Series 10 GPS + Cellular

The Cellular version can connect to a compatible mobile network using a supported mobile plan.

That allows certain functions to operate when the paired iPhone is not nearby.

The availability of mobile services depends on the network provider.

Does Cellular always sell for more?

Not necessarily.

The Cellular version originally offered additional functionality, but the resale premium can change.

Some second-hand buyers specifically want mobile connectivity.

Others are happy with GPS.

The important step is to select the correct version when requesting a valuation.

Can I sell a titanium Apple Watch Series 10?

Yes. Titanium Series 10 models are another configuration worth checking.

Apple introduced titanium models alongside the aluminium Series 10.

The titanium versions feature sapphire front crystal rather than the Ion-X glass used on aluminium models.

Apple offered three main titanium finishes:

Natural titanium

Gold titanium

Slate titanium

These models use GPS + Cellular connectivity.

Does titanium Apple Watch Series 10 sell for more?

Potentially.

Titanium is a premium case material, and its original retail price was higher than that of comparable aluminium models.

However, the resale difference depends on condition and demand.

A heavily scratched titanium Watch may receive a different assessment from one in excellent condition.

Do not assume that choosing titanium automatically guarantees a particular price.

What about Apple Watch Hermès Series 10?

Apple also offered a Hermès Series 10 configuration.

If you own one, identify it accurately and check whether the exact variant is supported by the device catalogue.

Do not select a standard aluminium listing simply because the model generation is the same.

How do I identify my exact Apple Watch Series 10?

Before selling, make sure you actually own a Series 10.

The Series 10 and Series 11 have similar designs and case sizes.

A Watch being 42mm or 46mm is therefore not enough to identify the generation.

Find your model number

On the iPhone paired with your Watch:

Open the Watch app.

Select My Watch.

Tap General.

Open About.

Locate Model Number.

Tap it to reveal the model number beginning with A.

For UK and European Series 10 models, Apple lists these identifiers:

Model number	Configuration
A2997	Series 10 42mm GPS
A2999	Series 10 46mm GPS
A3001	Series 10 42mm GPS + Cellular
A3003	Series 10 46mm GPS + Cellular

The Cellular model numbers also apply to the corresponding titanium versions, so check the case material separately.

Other regional model numbers exist.

For the official full list, see Apple's Apple Watch identification guide.

How much storage does Series 10 have?

Apple Watch Series 10 has 64GB of internal storage.

There are not separate 32GB and 128GB Series 10 versions.

When identifying your Watch, concentrate on the case size, material and connectivity.

Is Apple Watch Series 10 still worth selling after Series 12?

Yes, it's worth checking its resale value.

Series 10 was introduced in 2024, meaning it is only around two years old in November 2026.

Although Apple has released newer generations, the Series 10 still offers modern smartwatch capabilities.

These include:

S10 processor

Always-On Retina LTPO3 display

Fast charging

ECG functionality in supported regions

Heart-rate monitoring

Sleep tracking

Temperature sensing

Depth gauge

Water temperature sensor

GPS and fitness tracking

Apple Pay

Double tap gesture

It also remains compatible with watchOS 27, Apple's current major operating system.

That is a positive consideration for second-hand buyers.

Check Apple's current watchOS compatibility

Does watchOS 27 support Series 10?

Yes.

Apple's official compatibility list includes:

Apple Watch Series 9

Apple Watch Series 10

Apple Watch Series 11

Apple Watch Series 12

alongside certain SE and Ultra generations.

Series 10 therefore remains part of the current software-supported lineup.

Not every feature is necessarily available on every compatible Watch, but current software compatibility helps preserve the device's usefulness.

Why is this important when selling?

Some buyers worry that an older smartwatch will no longer work with modern software.

Series 10 remains relatively recent, and continued major operating-system compatibility can make it more attractive than much older hardware.

That does not guarantee its future value.

However, it is a genuine reason not to assume your Series 10 is obsolete.

Should I sell Series 10 after upgrading to Series 11 or Series 12?

If you have already upgraded and no longer need your Series 10, checking its resale value makes sense.

Many people keep their previous Watch as a backup.

That can be useful if they genuinely switch between devices.

However, consider whether yours has been used since the upgrade.

If it has spent several months in a drawer, it may be worth more to you as money from a sale.

When is the best time to sell Series 10?

There is no guaranteed perfect date.

New product launches can influence demand, while the condition and supply of used Watches also matter.

If you still use your Series 10 every day, there is no need to sell it merely because a newer model exists.

But if it has already been replaced, checking the current market rather than waiting indefinitely is reasonable.

Does Apple Watch Series 10 battery health affect its value?

Yes.

Battery performance matters because smartwatches are designed to be worn throughout the day.

As rechargeable batteries age, their capacity gradually decreases.

That can reduce the time between charges.

How to check Series 10 battery health

On your Apple Watch, open:

Settings → Battery → Battery Health

Look for the Maximum Capacity percentage.

This estimates the battery's remaining capacity relative to when it was new.

You should also consider how the Watch behaves.

Does it:

Charge normally?

Last through your usual activities?

Shut down unexpectedly?

Lose power much faster than expected?

Become unusually hot?

A device with poor battery performance may be assessed differently from one with a healthy battery.

Should I replace the battery before selling?

Not automatically.

Battery replacement costs money.

If you only intend to sell the Watch, consider whether the additional resale value would justify the repair.

You may be better off checking whether Sell My iPhone can consider it in its current condition.

Can I sell an Apple Watch Series 10 with scratches?

Potentially.

Cosmetic wear is common on used smartwatches.

A Watch may acquire small marks through everyday use, even when its owner has been careful.

However, the severity and location of the marks matter.

Scratches on the display

Inspect the screen in bright light, both switched on and off.

Look for:

Light surface marks

Deep scratches

Chips

Cracks

Abnormal display lines

A small surface mark is not necessarily equivalent to a damaged screen.

Scratches on the casing

Check the edges and areas around the buttons.

Light cosmetic marks are different from heavy dents or significant impact damage.

Does titanium scratch?

Yes.

Titanium is a durable material, but it is not immune to wear.

Likewise, sapphire crystal is scratch-resistant rather than indestructible.

Choose a condition grade that reflects the Watch you actually own.

Can I sell a Series 10 with a cracked screen?

You can enquire, but acceptance depends on the damage.

A cracked display can affect:

Touch functionality

Display visibility

Repair cost

Water resistance

Overall usability

If the Watch still powers on, that is useful information, but it does not mean the screen damage is insignificant.

Do not assume a cracked Series 10 has no value.

Equally, do not assume it will receive the same offer as a fully working device.

Describe the fault accurately and contact the buyer if you are uncertain whether the Watch can be accepted.

What should I test before selling Apple Watch Series 10?

A short functionality check can help you describe the device accurately.

Display and touchscreen

Check the screen across its full area.

Look for dead pixels, display lines or sections that do not respond to touch.

Digital Crown

Rotate and press the Digital Crown.

Make sure it responds normally.

Side button

Check that the side button functions.

Charging

Connect the Watch to a compatible charger.

Confirm that it charges consistently.

Speaker and microphone

Check audio functions where possible.

Battery

Review Battery Health and note any unexpected shutdowns.

Connectivity

Check Wi-Fi, Bluetooth and Cellular functionality where applicable.

Sensors

If you are aware of a problem with heart-rate monitoring or another important function, disclose it.

You do not need specialist diagnostic equipment for a basic self-check, but you should not hide known faults.

How do I remove Activation Lock before selling Series 10?

Activation Lock must be removed before transferring your Apple Watch Series 10 to another owner.

Activation Lock is designed to prevent unauthorised use of a Watch linked to somebody else's Apple Account.

If it remains enabled, the next owner may be unable to activate the device.

How to unpair Apple Watch Series 10

Keep the Watch and paired iPhone close together.

Then:

Open the Watch app on your iPhone.

Select My Watch.

Tap All Watches.

Tap the information button beside your Series 10.

Choose Unpair Apple Watch.

Confirm the action.

Remove the mobile-data plan if you are selling a Cellular model.

Enter your Apple Account password when requested.

Complete the unpairing process.

When performed correctly through the paired iPhone, unpairing erases the Watch and removes Activation Lock.

Is factory-resetting the Watch enough?

Not necessarily.

Apple explains that erasing a Watch directly without unpairing it may leave Activation Lock enabled.

That means the Watch could appear reset while still being associated with your account.

Use Apple's recommended unpairing process wherever possible.

Read Sell My iPhone's Apple Watch unpairing guide

For further details, see Apple's official instructions.

Can I sell Series 10 without my old iPhone?

Potentially.

However, you still need to remove the Watch from your Apple Account.

If you no longer have the paired iPhone, follow Apple's official process for erasing the Watch and removing Activation Lock through your account.

Do not send a device that remains locked to you.

A buyer needs to be able to set it up normally.

Do I need to cancel my Series 10 Cellular plan?

If your Series 10 has GPS + Cellular, check whether it still has an active mobile-data subscription.

When unpairing for sale, remove the mobile plan as appropriate.

You may also need to contact your network provider to cancel the subscription.

Removing a plan from the Watch does not necessarily cancel the billing arrangement.

Check this before transferring the device.

Do I need the original Series 10 box, charger and strap?

Sell My iPhone's published preparation guide says smartwatches should include their charger and strap.

This is important because the requirements differ from some ordinary phone trade-ins.

Charging cable

Find the compatible Apple Watch charging cable.

If it is missing, contact the team before dispatch.

Strap

Include the required strap and follow the instructions for your particular sale.

Apple Watch Series 10 was sold with different strap options, but a particular strap does not guarantee a higher offer.

Original retail box

A missing original box does not automatically prevent an ordinary used Watch from being considered.

However, the requirements for a product submitted as factory-sealed and brand-new are different.

Do not describe an opened Watch as sealed.

Read the Sell My iPhone preparation guide

How do I get a Series 10 offer from Sell My iPhone?

Sell My iPhone is particularly interested in buying Apple Watch Series 10 devices.

The process starts with selecting the correct product.

Step 1: Search for Series 10

Visit Sell My iPhone's device catalogue.

Search for:

Apple Watch Series 10

Step 2: Choose the exact version

Identify whether yours is:

42mm or 46mm

GPS or GPS + Cellular

Aluminium or titanium

Step 3: Enter the requested information

Choose the applicable specification and condition.

Describe any significant faults honestly.

Step 4: Follow the listing's selling process

Depending on the exact listing, you may see an advertised price or a request for a custom quote.

For selected products using custom quotes, complete the fields and follow the Submit and Check Out process.

Step 5: The team reviews the request

For custom quote submissions, the details reach the Sell My iPhone team.

We can consider the exact model, condition and current market before deciding whether to make an offer.

Submitting a custom quote request does not guarantee a price or mean the device has already been sold.

Step 6: Proceed if an offer is agreed

If an offer is made and you wish to accept it, follow the instructions for completing the sale.

Do not send the Watch solely because you submitted a request.

Wait for the appropriate offer and dispatch instructions.

Search for your Apple Watch Series 10 and request an offer

What happens after Sell My iPhone receives my Series 10?

Once a sale has been agreed and the device is received, it is inspected to confirm that the condition matches the information supplied.

The assessment can include:

Display condition

Case wear

Buttons and charging

Battery performance

Functionality

Activation Lock status

If the actual condition differs, an updated offer may be necessary.

Sell My iPhone's published FAQs explain that sellers can accept a revised offer or request the device's return if the revised amount is not satisfactory.

This is why selecting the correct grade from the beginning matters.

How long is an agreed price valid?

Sell My iPhone's published guidance states that quoted prices are generally held for 14 days under its applicable conditions.

This applies after a price has actually been agreed.

It does not mean that every custom quote submission automatically receives a guaranteed offer.

How should I package Apple Watch Series 10 for posting?

Once you've accepted an offer and received dispatch instructions, protect the Watch carefully.

Photograph it first

Take clear photographs showing:

Screen

Casing

Digital Crown

Side button

Rear sensors

Any existing marks

These provide a useful record of its condition.

Protect the display

Use appropriate padding and secure packaging.

Do not place the charging cable or other hard items directly against the screen where they could cause damage in transit.

Include required accessories

Follow the current instructions regarding the charger and strap.

Keep proof of postage

Retain your postage receipt and tracking information.

Sell My iPhone's preparation guide recommends considering Royal Mail Special Delivery for higher-value devices because the standard label has a limited compensation amount.

Follow the dispatch instructions for your agreed sale.

Is it better to sell my Series 10 or keep it?

That depends on whether you still use it.

Keep it if it meets your needs

Series 10 remains compatible with watchOS 27 and offers capable smartwatch features.

If you wear it every day and have no reason to upgrade, keeping it may be the better decision.

Sell it if it has become redundant

If you have already upgraded to Series 11, Series 12 or an Ultra, the old Series 10 may no longer serve a useful purpose.

It is worth checking whether Sell My iPhone can make you an offer.

Compare the options

You do not need to accept an offer simply because you requested one.

Knowing the current selling options can help you make a more informed decision.

Why does Sell My iPhone want Apple Watch Series 10 devices?

Apple Watch Series 10 occupies a useful position in the second-hand market.

It is not the newest Watch, but it still offers modern features and current software compatibility.

Some buyers may want a lower-cost alternative to a brand-new Series 12.

Others may specifically prefer:

A 42mm Watch

A larger 46mm display

A Cellular model

A premium titanium case

A particular colour or finish

This creates potential demand for used Series 10 devices in different configurations.

It is one reason Sell My iPhone is particularly interested in acquiring them.

Ready to sell your Apple Watch Series 10?

Sell My iPhone is currently particularly interested in:

Apple Watch Series 10 42mm GPS

Apple Watch Series 10 46mm GPS

Apple Watch Series 10 42mm GPS + Cellular

Apple Watch Series 10 46mm GPS + Cellular

Apple Watch Series 10 Titanium

If you have upgraded or stopped wearing yours, check whether we can make you an offer.

Before submitting, confirm the model and condition.

If you proceed with a sale, remove Activation Lock, unpair the Watch correctly and follow the packaging instructions.

Your Apple Watch Series 10 could still have resale value in 2026. Find out whether Sell My iPhone wants to buy it rather than leaving it unused.

Sell your Apple Watch Series 10 — check your offer options

Frequently asked questions

Can I sell my Apple Watch Series 10 in the UK?

Yes. Sell My iPhone is particularly interested in buying Series 10 smartwatches. Search for your exact version and follow the listing's instructions.

How much is Apple Watch Series 10 worth in 2026?

Its value depends on size, material, connectivity, screen condition, battery health and market demand. Check the current offer options for your exact device.

Where can I sell Apple Watch Series 10?

You can use a specialist trade-in service such as Sell My iPhone, sell privately or compare manufacturer trade-in options.

Can I sell my Apple Watch Series 10 42mm?

Yes. Both GPS and GPS + Cellular 42mm versions are worth checking.

Can I sell Apple Watch Series 10 46mm?

Yes. Sell My iPhone is particularly interested in Series 10 devices, including 46mm configurations.

Is Apple Watch Series 10 46mm worth more than 42mm?

Not necessarily. Larger size, case material, connectivity, condition and market demand can all affect its value.

Can I sell a titanium Apple Watch Series 10?

Yes. Identify the titanium variant accurately and select the appropriate listing.

What colours does Apple Watch Series 10 come in?

Aluminium versions include Jet Black, Rose Gold and Silver. Titanium versions include Natural, Gold and Slate.

Does Apple Watch Series 10 support watchOS 27?

Yes. Apple includes Series 10 in its official watchOS 27 compatibility list.

What are the UK Apple Watch Series 10 model numbers?

A2997 and A2999 identify the 42mm and 46mm GPS models. A3001 and A3003 identify the corresponding GPS + Cellular configurations for Europe and other supported regions.

How much storage does Series 10 have?

Apple Watch Series 10 has 64GB of internal storage.

Does battery health affect trade-in value?

It can. Significantly degraded batteries may affect usability and the offer made for a used Watch.

Can I sell a Series 10 with scratches?

Potentially. Describe the cosmetic condition honestly and choose the appropriate grade.

Can I sell a Series 10 with a cracked screen?

You can enquire, but acceptance and price depend on the extent of the damage.

Should I repair my Watch before selling it?

Not automatically. Check whether the increase in resale value is likely to justify the repair cost.

Do I need to remove Activation Lock?

Yes. Correctly unpair the Watch from your Apple Account before transferring it to a new owner.

Is factory-resetting my Watch enough?

Not necessarily. Erasing the Watch directly can leave Activation Lock enabled. Apple recommends unpairing through the paired iPhone.

Do I need the original charger and strap?

Sell My iPhone's published preparation guide says smartwatches should include a charger and strap.

Can I sell Series 10 without its original box?

Potentially. A missing box does not automatically prevent an ordinary used device from being considered. Factory-sealed devices have different requirements.

Why can't I see an instant price?

Some listings use a custom quote request rather than an advertised price. Complete the requested details so the team can assess whether an offer is possible.