That old phone in your drawer could still cover a few essentials, reduce the cost of an upgrade or give someone else a useful device. But its value drops quickly if it is damaged further, locked to your accounts or sold with personal data still on it. This guide to selling old phones explains how to get your handset ready, assess its condition and choose a sale route that works for you.
Start by deciding whether to repair or sell
A cracked screen, weak battery or faulty charging port can make an otherwise good phone seem worthless. Before accepting a low offer, work out whether a straightforward repair could increase its resale value. This is especially worth considering for newer iPhones, Samsung Galaxy models and other popular handsets with plenty of life left.
It depends on the repair cost and the phone’s likely value afterwards. A budget handset with a very worn battery may not justify major work. A recent flagship with a cracked display may be a different story. Ask for a clear repair quote, then compare the likely sale price of a working example against the price offered for one in its current condition.
If you are upgrading because the phone no longer suits your needs, selling it is usually a better choice than leaving it unused. Old devices contain useful materials, and a working second-hand phone can be a practical option for students, families and anyone who wants to spend less on tech.
Find out what your old phone is worth
Phone prices are not based on age alone. Make, model, storage size, network status, condition and demand all affect what you can expect to receive. Two phones that look almost identical can have very different values if one has 256GB of storage, a healthy battery and no repairs, while the other is network locked, scratched and missing features.
Check the exact model in Settings, including storage capacity. For iPhones, you can find this under General and About. On Android, look under About Phone. Write down the model number too, as it helps avoid confusion between similar versions.
Be realistic when comparing prices. A private listing may show an optimistic asking price rather than the amount the seller actually receives. Trade-in and buyback quotes are often lower, but they can offer speed, less admin and a more predictable payment. Private sales may bring more money, although you take on the work of photos, messages, postage and dealing with buyers.
Condition makes a real difference
Describe the phone honestly. Buyers and trade-in services generally assess devices as pristine, good, fair or faulty, but the wording varies. Look carefully at the screen, frame, back glass, cameras, buttons, charging port, speakers and fingerprint reader or Face ID.
Light marks from normal use are not the same as a cracked screen or a camera that will not focus. Test the phone on Wi-Fi and mobile signal, make a call, play audio, plug in a cable and check that it charges. If there are faults, say so. A clear, accurate description saves time and avoids a price reduction later.
Battery condition matters too. On an iPhone, Battery Health gives a useful indication. Android devices do not always show a single battery-health figure, so be clear if the battery drains unusually fast, overheats or needs frequent charging.
Back up what you want to keep
Do not wipe your phone until you are sure your photos, messages, contacts, notes and files are safely stored elsewhere. Back up to your preferred cloud service, computer or replacement phone, then check that the backup has completed.
This is the moment to move anything that may be difficult to replace: authenticator app codes, saved documents, voice recordings, downloaded photos and app data. If you use your phone for work, make sure you can still access email, banking and two-factor authentication on another device before handing it over.
Also move your SIM card or eSIM. A physical SIM should be removed before the sale. If you use an eSIM, check your network’s instructions for transferring or deleting it. Never leave an active SIM in a phone you are selling.
Protect your data before the phone leaves your hands
A factory reset is essential, but it should be your final step after backing up. Signing out properly first prevents activation locks that can make the phone unusable for its next owner.
For an iPhone, sign out of your Apple Account and turn off Find My before erasing all content and settings. For Android phones, remove your Google account and any manufacturer account, such as Samsung account, before using the factory reset option. This helps prevent Factory Reset Protection from remaining active.
Take a few extra minutes to remove digital wallets, delete saved cards and sign out of banking, shopping and social media apps. A reset should clear the device, but taking these steps gives you another layer of protection.
Once the reset is complete, stop at the welcome screen. Do not set the phone up again. The buyer should be able to start fresh without seeing your details or being asked for a previous account password.
Get the phone ready to sell
Presentation will not hide faults, but it can make a genuine difference to a buyer’s confidence. Switch the phone off, remove the case and clean it gently with a soft microfibre cloth. Clear dust from the charging port carefully without pushing anything sharp inside. Avoid sprays, harsh cleaners and excess moisture.
If you still have the original box, charging cable or receipt, keep them together. They can help support a private sale, though do not include accessories that you still need unless they are part of the agreed deal. A good-quality USB-C cable or charger can be useful for your new device, so factor replacement costs into your decision.
For a private listing, take clear photos in good natural light. Include the front, back, sides and any wear. Show the device switched on before you erase it, but never photograph serial numbers, account details or personal notifications.
Choose the right way to sell
The best route depends on what matters most: maximum price, fastest payment or least effort.
A private sale can be worthwhile when the phone is in good condition and you are comfortable dealing with buyers. Meet in a public place if collecting in person, confirm payment has arrived before handing over the device and do not rely on screenshots of bank transfers. If posting, use tracked and insured delivery suitable for the phone’s value, photograph the condition and record the serial number or IMEI for your own records.
A trade-in or phone buyback service is often simpler. You receive a quote based on the model and condition, then the device is checked before payment. This option may not deliver the highest possible price, but it is useful when you want a quick, straightforward upgrade without managing a listing.
A local phone retailer can offer the convenience of an in-person assessment. You can ask questions, understand how the device has been valued and sort out a repair, a replacement accessory or another device need in the same visit. For many people, that reassurance is worth more than chasing a slightly higher private offer.
Avoid the mistakes that cost sellers money
The biggest mistake is handing over a phone that is still linked to your Apple, Google or manufacturer account. The next is overstating its condition. If a buyer or service finds undisclosed damage, the price can be revised or the sale may fall through.
Do not post a phone without protecting it properly. Use a sturdy box, padding that prevents movement and a delivery service with enough cover. Keep the proof of postage until the sale is complete.
Be cautious with buyers who rush you, ask to take the phone before paying or request unusual payment methods. A fair deal should feel clear. If something seems off, pause and choose a safer option.
Make your next phone work harder
Selling your old phone is also a good time to prevent the same everyday problems on your replacement. A decent case and screen protector can protect resale value from day one. A reliable charger, spare cable for work or travel, and a power bank can reduce the wear caused by low-quality accessories and constant emergency charging.
If your existing phone needs attention before sale, or you want a quick local option for buying and selling devices, InstaTech can help you keep the process simple. Bring the handset in prepared, ask for a clear assessment and choose the option that gives you the right balance of price, speed and peace of mind.
