A Practical Guide to Selling Your iPhone 6s in the UK
If you're wondering whether that old iPhone 6s tucked away in a drawer still has any value, you might be pleasantly surprised. This guide will walk you through how to check its worth, where to sell it for the best price, and how to get it ready for its new owner. There's still a steady market for this model, particularly for trade-ins and private sales, so it's worth a look.
Even a decade after its release, the iPhone 6s holds on to a surprising amount of value, especially if it’s been well looked after. Many people are still looking for them as a first mobile for a teenager, a simple device for an older relative, or just a reliable spare.
Is It Still Worth It to Sell an iPhone 6s?

It’s a question we get asked a lot at the counter: "Is my old iPhone 6s just a paperweight now?" The good news is that it’s far from it.
The iPhone 6s was one of Apple's most successful models, and that lasting popularity means there are still plenty of people in the UK looking for them.
What Determines Your iPhone 6s Value?
So, what actually determines the price you'll get? Think of it like a car MOT; buyers, whether they're trade-in companies or individuals, want to know exactly what they're getting. A few key factors make all the difference between getting a great price and a disappointing one.
The table below breaks down what we look for when we value an iPhone 6s.
| Factor | High Value Impact | Low Value Impact |
|---|---|---|
| Physical Condition | Flawless screen, minimal to no scuffs on the body. Looks almost new. | Visible scratches, dents, or any cracks on the screen or back. |
| Battery Health | Maximum Capacity is high, ideally 80% or above. Lasts a full day. | Needs frequent charging, capacity is significantly degraded (below 80%). |
| Storage Size | Larger capacities like 64GB or 128GB are much more desirable. | Smaller 16GB or 32GB models fetch lower prices. |
| Functionality | All buttons, cameras, Touch ID, and speakers work perfectly. | Any non-working parts, like a faulty home button or a blurry camera. |
| Network Lock | Unlocked to all networks, allowing any SIM card to be used. | Locked to a specific network carrier, which limits its appeal. |
Ultimately, a mobile that looks good and works perfectly will always command the best price. Even small details, like having the original box, can sometimes add a little extra value.
A customer recently contacted us about an iPhone 6s they thought was worthless because it wouldn't hold a charge for more than a few hours. After we diagnosed it, we found it just needed a new battery. They decided to trade it in with us and were pleased to get a fair price for it, which they put towards a newer refurbished model.
Even if your iPhone 6s is faulty or has a smashed screen, don't just chuck it in a drawer. Many trade-in companies, including us at Used Mobiles 4 U, will buy broken devices for refurbishment or to salvage parts. The value will be lower, of course, but it’s still cash in your pocket. If you're curious about its predecessor, you can check out our guide on iPhone 6 pricing to see how values compare.
Where to Sell Your iPhone 6s for the Best Price

When it's time to sell your old iPhone 6s, you’re basically facing one big question: what matters more, convenience or cash? You can go for a quick, guaranteed sale with zero hassle, or you can put in a bit of legwork to squeeze out every last penny.
In the UK, there are really three main routes to take. Each has its own upsides and downsides, so figuring out which one suits you best is the first step.
Specialist Trade-in Companies
This is easily the fastest and simplest way to get cash for your old mobile. Companies like us, Used Mobiles 4 U, are built around buying used phones. The process is designed to be painless: get a quote online, we send you a free postage pack, and as soon as we've checked the phone, the money is sent straight to your bank.
The main draws here are speed and security. You get a locked-in price based on your mobile's condition, and you don’t have to waste time haggling with buyers, taking photos, or figuring out postage. For a model like the iPhone 6s, it’s a brilliant, no-fuss option.
Selling Privately
If your goal is to get the absolute highest price possible, selling privately is the way to go. Using platforms like Facebook Marketplace, eBay, or Gumtree lets you cut out the middleman and deal directly with the end buyer.
Of course, this route demands a lot more of your time and effort. You'll need to:
- Take plenty of clear, well-lit photos that show the mobile from all angles.
- Write a detailed and honest description, mentioning any scuffs or scratches.
- Be ready to field questions from all sorts of potential buyers.
- Arrange a safe handover or manage the packaging and shipping yourself.
There are also risks, from time-wasters and low-ball offers to outright payment scams. For many people, the potential for a bit of extra cash just isn't worth the headache.
A customer recently sold his iPhone 6s to us after trying Gumtree for two weeks. He said he was fed up with buyers failing to show up and others making ridiculously low offers. He just wanted a simple sale and was happy to get a fair, guaranteed price from us without any more fuss.
Mobile Recycling Services
Mobile recycling websites are your third option. They work in a similar way to specialist trade-in companies but tend to accept a much wider range of old electronics, not just phones. While they’re simple to use, the catch is that they usually offer the lowest prices.
These services are really best for mobiles that are very old, badly damaged, or just not worth much anymore—where you just want to get rid of it responsibly. For an iPhone 6s that’s still in decent shape, you’ll almost certainly get a better deal from a specialist trade-in service or by selling it privately.
For a deeper dive, our guide on where to sell your iPhone breaks these options down even further.
How to Accurately Grade Your Mobile's Condition

When you're ready to sell your iPhone 6s, being brutally honest about its condition is the single most important thing you can do. It's not just about getting a fair price; it's about making sure there are no nasty surprises or disputes with the buyer or trade-in company later on.
Think of it as a quick MOT for your mobile. A few minutes of thorough checking now will save you a world of hassle down the line.
The first place anyone looks is the screen. Find a bright light, hold your iPhone 6s under it, and tilt it around at different angles. This little trick reveals any of those faint scratches or deeper scuffs that are almost invisible when the screen is on. Take note of every mark, no matter how small.
Next up, give the aluminium casing a proper inspection. Check the corners and edges for any tell-tale dents, dings, or scuffs from accidental drops. Run your fingers along the sides to feel for rough patches. Don't forget to press all the physical buttons—volume up/down, the mute switch, and the home button—to make sure they still have that satisfying click and respond instantly.
Checking the Insides
A phone's cosmetic condition is only half the story. Its internal health, especially the battery, is just as critical. For an older model like the iPhone 6s, the battery's performance is a massive factor in what it's worth.
Thankfully, checking this is easy. Just go to:
Settings > Battery > Battery Health & Charging
You’re looking for the Maximum Capacity percentage. This number tells you how much charge the battery can hold compared to when it was brand new. A figure over 85% is pretty good for a mobile of this age. If it's dipped below 80%, the battery is showing its age and will likely need replacing soon, which will definitely impact its value.
We recently had a customer looking to sell an iPhone 6s that looked immaculate from the outside. But when we checked the battery health, it was down to 74%. They were genuinely surprised, as they hadn't noticed how quickly the battery was draining day-to-day. Explaining this helped them understand the slightly lower trade-in price we offered.
Finally, give the charging port and headphone jack a quick test to ensure they're working without any issues. A thorough and honest assessment using these steps will help you grade your mobile accurately. If you're not sure how these checks translate into specific grades, you can check out our guide that explains our refurbished iPhone grading system.
Preparing Your iPhone 6s for Its New Owner
Before you can send your old mobile off to its new home, there are a few essential jobs to do. The most important one? Protecting your personal data. This isn't complicated, but it involves two crucial stages: backing up everything you want to keep, and then securely wiping the device so it’s completely clean for the next person.
We see people worry about this part, but it’s actually quite straightforward. WARNING: Always back up your data before wiping your phone. Skipping this step could mean losing years of photos, contacts, and messages forever. It’s not a risk worth taking.
First Things First: Back Up Everything
You’ve got two main options for backing up your iPhone 6s. If you have the time, we usually recommend doing both to be extra safe.
Backing up with iCloud: This is by far the easiest method. It stores your backup on Apple's servers, and you can kick it off anywhere you have a Wi-Fi connection. Just head to Settings > [your name] > iCloud > iCloud Backup. Check the toggle is on and then tap Back Up Now.
Backing up to a computer: Think of this as your physical safety net. It’s a great way to have a second, local copy of all your data. Simply connect your iPhone to your Mac or PC, open Finder (on newer Macs) or iTunes (on older Macs and PCs), select your device, and click Back Up Now.
With a recent backup tucked away safely, you'll be able to restore all your information onto your new iPhone in minutes.
Wipe It Clean: The Factory Reset
Once you are 100% certain your backup is complete and saved, it’s time to wipe the mobile. This isn’t just about deleting a few files; it’s a full factory reset that scrubs all your settings, apps, and personal info, including any bank cards linked to Apple Pay.
Before you hand it over, you need to be certain all your personal data is gone for good; there are some great insights into the secure disposal of old iPhones that highlight just how important this is.
The very first thing you have to do is sign out of your Apple ID. This removes the Activation Lock, which is an anti-theft feature that prevents anyone else from using the phone.
- Go to Settings > [your name].
- Scroll right down to the bottom and tap Sign Out.
- You'll be asked for your Apple ID password—enter it and tap Turn Off.
With that sorted, you can perform the factory reset.
We once had a customer who sold their iPhone 6s privately but forgot to sign out of iCloud. The new owner couldn't set the phone up, and the seller had to share their password to get it unlocked—a huge security risk. This is why we check every single device that comes to us to make sure it's been properly wiped.
To reset the device, just follow this path:
Settings > General > Transfer or Reset iPhone > Erase All Content and Settings
The mobile will ask for your passcode and then your Apple ID password one last time. After a few minutes, it will restart and show the 'Hello' screen, looking exactly like it did the day you first took it out of the box.
Final Touches
The last two steps are simple but so often forgotten. First, grab a SIM ejector tool (or a bent paperclip) to pop out the SIM card tray and take out your SIM card.
Finally, give the mobile a good clean with a soft, microfibre cloth. Wiping away fingerprints and dust is a small touch that makes a great first impression on the buyer.
Following these steps ensures your data stays safe and the phone is ready for its next chapter. You can find more details in our complete guide on how to prepare an iPhone for sale.
Tips for Packaging and Safely Shipping Your Mobile

Once you’ve found a buyer and prepared your mobile, the final hurdle is getting it to them in one piece. We've sent out thousands of mobiles over the years, and if there’s one thing we’ve learned, it’s that proper packaging is something you can’t afford to get wrong.
A poorly packed mobile can easily get damaged in transit, which almost always leads to a disappointed buyer and a lot of hassle.
The absolute key is to stop the mobile from rattling around inside its packaging. A small, sturdy cardboard box is what you need—please avoid using those flimsy jiffy bags. They offer next to no protection against the inevitable knocks and drops that happen during delivery.
Choosing the Right Materials
To make sure your iPhone 6s arrives safely, you need the right materials. You don’t need anything fancy, but the right combination makes all the difference. This essential guide to boxes, wraps, and tapes gives a great overview of what to look for.
Here’s what we always recommend:
- A snug box: Find one that’s not much bigger than the mobile itself. Too much empty space is your enemy here.
- Bubble wrap: Wrap the iPhone 6s in at least two layers of bubble wrap and secure it with a bit of tape so it doesn’t unravel.
- Padding: Fill any gaps left in the box with extra bubble wrap, scrunched-up paper, or foam peanuts to create a tight, protective cushion. Give the sealed box a gentle shake; if you can’t feel or hear anything moving, you’ve done a good job.
Sending Your Mobile Safely
When you sell an iPhone 6s to a private buyer, how you send it is just as important as how you pack it. We always tell people to use a tracked and insured delivery service. It might cost a few pounds more, but the peace of mind is absolutely worth it.
For an item like an iPhone, Royal Mail Special Delivery is the gold standard in the UK. It gives you tracking, requires a signature on delivery, and provides proper insurance coverage.
We once bought an iPhone from a private seller who sent it in a simple padded envelope. It arrived with a cracked screen corner. They hadn't paid for insurance, so they lost the sale and were left with a broken phone. It's a lesson you only want to learn once.
If you have them, including the original box and accessories will make your package feel more premium. Tucking the charger and cable neatly inside the original box before packing it adds a professional touch that buyers really appreciate.
FAQs: Your Questions About Selling an iPhone 6s Answered
Thinking about selling your old iPhone 6s? It's natural to have a few questions. We get asked all the time about what they're really worth, whether a broken one has any value, and how quickly you can get your hands on the cash. Let's clear up some of the most common queries we hear.
What Price Can I Realistically Get for an iPhone 6s?
This is always the first question, and the honest answer is that it really depends on the mobile's condition and specs. A pristine, unlocked iPhone 6s with a higher storage capacity like 64GB or 128GB will always fetch a better price. It's simply more desirable because it’s ready to go for the next user.
On the flip side, a model with just 16GB of storage will be worth less. If it’s locked to a network or has obvious cosmetic damage like screen scratches or dings in the casing, the offer will reflect that. Battery health is another big one—if the capacity has dropped below 80%, it’s a clear sign the battery is ageing, and that will reduce its value.
Can I Sell a Locked or Broken iPhone 6s?
Yes, absolutely. Don't just write off a faulty or network-locked iPhone 6s as worthless. Specialist recyclers like Used Mobiles 4 U are always looking for devices that aren't in perfect shape. We have skilled technicians who can either refurbish them or sustainably salvage the working parts for other repairs.
We regularly buy mobiles with all sorts of issues, including:
- Cracked or completely smashed screens
- Buttons that have stopped working
- Cameras that won’t focus properly
- Batteries that can't hold a charge
Of course, the price you're offered will be lower than for a fully working mobile, as it needs to cover the cost of parts and labour. But it’s a much smarter move than letting it sit in a drawer gathering dust.
How Long Does It Take to Get Paid After a Trade-in?
The speed of payment is a massive plus for trading in, especially when you compare it to selling privately. With a private sale, you could be waiting weeks to find a buyer, and then you have the hassle of chasing them for the money. A good trade-in service is built to be fast and reliable.
Once you’ve accepted our online quote, we’ll send you a free, insured postage pack. The moment your iPhone 6s arrives with us, our technicians get to work testing it to confirm its condition matches what you told us. This usually happens on the same day we receive it.
We had a customer get in touch recently who was worried about how quickly they’d get paid. They needed the cash to put towards a new mobile. We walked them through the process: once our checks are done, the payment goes straight to their bank account and typically clears within a single working day. They were so relieved to hear how straightforward it was.
The whole thing, from getting your quote online to having the money in your account, is usually sorted within just a few business days.
If you've got an old iPhone 6s ready to go, Used Mobiles 4 U offers a quick, secure, and hassle-free way to get a great price for it. You can get an instant quote on our website today.
Written by James Waterston — 24 years in the mobile phone industry from customer service through to Sales Director of a global repair and recycling company. Now running Used Mobiles 4 U for over 8 years.
LinkedIn:
https://uk.linkedin.com/in/james-waterston-9039a21a









































