The best place to buy a refurbished phone in the UK is the seller that tells you, in writing, who refurbished the phone, how long the warranty lasts and what it excludes, what each grade means, the minimum battery health, how long you have to return it, and that the phone is unlocked and signed out of the previous owner's account. Price matters, but two listings at the same price can carry very different risks. This guide gives you a checklist to judge any seller, compares the five main types of seller against it, and puts The Tech Gadgets through the same test, exclusions included.
Quick answer: where should you buy a refurbished phone in the UK?
Buy from a UK business that publishes its warranty terms, grading definitions, battery-health minimum and returns policy before you pay. That can be a specialist refurbisher, a manufacturer's own refurbished store, a network or a well-run marketplace seller. Buying from a business also gives you rights under the Consumer Rights Act 2015 that a private seller does not owe you. Avoid any listing that cannot answer the checklist below.
No single website is "the best" for everyone. Apple's Certified Refurbished store suits someone who wants a new battery and new outer shell and will pay more for it. A specialist refurbisher suits someone who wants a wider choice of models and lower prices. A network suits someone who wants to spread the cost. A private sale suits someone who can inspect the phone in person and accept the risk.
The five places you can buy a refurbished phone
The route you buy through decides who refurbished the phone, whose warranty you rely on, and who you complain to if something goes wrong.
| Seller type | Who refurbishes the phone | Who you deal with if it goes wrong | Typical strengths | Typical trade-offs |
|---|---|---|---|---|
| Specialist refurbisher (selling direct) | The retailer itself | The retailer | Wide model range, older models, multiple grades and prices | Policies vary a lot between businesses, so you must read them |
| Marketplace (for example Back Market) | A third-party seller listed on the platform | The individual seller, with the platform's own policies on top | Lots of choice and price competition | The refurbisher changes from listing to listing |
| Manufacturer certified (for example Apple Certified Refurbished) | The manufacturer | The manufacturer | Apple fits a new battery and outer shell on refurbished iPhones | Narrow, changing model range and higher prices |
| Network (for example giffgaff) | The network or its suppliers | The network | Monthly payment options, grade-linked warranties | Stock can be limited; finance involves a credit check |
| Private seller (classified ads, social media) | Usually nobody | The individual, with limited legal obligations | Lowest prices, can inspect in person | No cooling-off period and far weaker legal protection |
Back Market describes itself as a global marketplace dedicated to professionally refurbished technology, and it runs a seller portal for the businesses that list on it. On any marketplace, the checklist applies to the individual seller behind each listing.
The refurbished-seller checklist: nine questions to ask before you pay
Use these nine questions on any website, network or individual. A good seller answers all of them on the product page or in a linked policy. If you have to email to find out, treat that as information too.
1. Who actually refurbished the phone?
The refurbisher is the business that tested, cleaned, repaired and graded the phone, and it is not always the business taking your money. A specialist refurbisher selling direct, Apple's Certified Refurbished store and some networks refurbish or certify stock themselves. On a marketplace, the refurbisher is a separate seller. Knowing who did the work tells you whose standards and whose warranty you are relying on.
Ask whether the seller tests every function, factory resets the phone and removes the previous owner's accounts, and whether replacement parts may have been fitted. giffgaff, for example, states in its help centre that its refurbished phones may include replacement batteries or screens that are not from the manufacturer. That kind of disclosure is a good sign.
2. How long is the warranty, and what does it exclude?
Look for at least 12 months and read the exclusions as carefully as the headline. Apple gives a one-year limited warranty on Certified Refurbished products. giffgaff gives 12, 18 or 24 months depending on grade. Most refurbisher warranties exclude physical and liquid damage. The exclusion that varies most is the battery: some warranties cover battery faults and some do not.
The battery exclusion matters because battery capacity is the part of a used phone most likely to decline during the warranty period. giffgaff's refurbished warranty lists battery issues as covered. The Tech Gadgets' 12-month warranty does not cover battery defects or reduced capacity (more on that below). Price that difference in.
Also check how a claim works: repair or replacement, whether you must send the phone back first, and whether you can use the manufacturer's repair network (giffgaff, for instance, says its refurbished warranty claims go only through giffgaff).
3. Are the grades actually defined?
A grade is only useful if the seller writes down what it means for the screen and for the body separately. "Excellent" from one seller is not the same as "Excellent" from another, because there is no single UK standard for refurbished grades. Look for plain descriptions such as "no visible marks on the screen" or "visible marks on the body", not just a star rating or a letter.
giffgaff uses Like New, Excellent, Very Good and Good; The Tech Gadgets uses Like New, Excellent, Very Good and Fair; Apple does not grade, because each Certified Refurbished iPhone gets a new outer shell. Our guide to refurbished iPhone condition grades explains how cosmetic grades translate into what you will see in the hand.
4. What is the minimum battery health?
A trustworthy seller states a minimum battery health percentage, or states that the battery has been replaced. Battery health (Apple calls it maximum capacity) measures how much charge the battery holds compared with when it was new. On the sellers checked for this guide, minimums ranged from 80% (giffgaff) to 85% (The Tech Gadgets), and Apple fits a new battery to every Certified Refurbished iPhone.
For context, Apple says batteries in iPhone 14 models and earlier are designed to retain 80 per cent of their capacity when new at 500 complete charge cycles under ideal conditions, and iPhone 15 models at 1,000 cycles. So a phone at 85% has headroom but is not new, and a phone at 80% is around the point Apple's own design figure describes. On an iPhone you can check it yourself in Settings, then Battery, then Battery Health.
5. How long do you have to return it?
For online purchases from a business, the legal minimum cooling-off period is 14 days from receiving the item, and Citizens Advice notes that sellers can choose to offer longer. Many refurbishers do. Apple's UK online store gives 14 days. giffgaff gives 21 days from delivery. The Tech Gadgets gives 30 days from delivery. Check who pays return postage and whether deductions apply.
6. Is the phone unlocked to all UK networks?
The phone should be unlocked so that any UK SIM works in it. Ofcom banned UK mobile companies from selling locked handsets from 17 December 2021, but phones first sold before then can still be locked. On an iPhone, go to Settings, then General, then About: Apple says "No SIM restrictions" next to Network Provider Lock means the phone is unlocked.
7. Has Activation Lock been removed and the previous owner signed out?
This is the single most important check on a used iPhone. Apple's Activation Lock is linked to the owner's Apple Account through Find My, and Apple says the account password is needed before anyone can turn off Find My, erase the device or reactivate and use it. A phone still linked to someone else's account may be unusable.
A reputable refurbisher confirms that every phone is factory reset and signed out of the previous owner's accounts. A private seller should do this in front of you.
8. What UK consumer rights apply?
When you buy from a business, the Consumer Rights Act 2015 requires goods to be of satisfactory quality, fit for purpose and as described. Which? explains that you have 30 days to reject faulty goods for a refund, and that a fault found in the first six months is presumed to have been there at delivery unless the retailer proves otherwise.
Buying from a private individual is different. Citizens Advice notes that a private seller does not have to offer a cooling-off period. Goods must still match how they were described, but the Consumer Rights Act protections above are rights against a trader, so you cannot rely on them in a private sale.
9. What is included in the price?
Compare the total, not just the headline. Check whether a charging cable is included, whether delivery is free, whether you must buy anything else (some networks require new members to buy a SIM plan with a phone), and whether paying monthly involves a credit check. Apple includes accessories and cables in a new white box. giffgaff includes a phone, a data/charging cable and a SIM key if needed, but no mains plug.
How the main seller types score against the checklist
The table below uses each business's published terms as checked on 2 October 2026. For marketplaces, the answers depend on the individual seller, so read each listing.
| Checklist item | Apple Certified Refurbished (iPhone) | giffgaff refurbished | The Tech Gadgets | Marketplace listing | Private seller |
|---|---|---|---|---|---|
| Who refurbished it | Apple | giffgaff and its suppliers | The Tech Gadgets | The listed seller | Nobody, usually |
| Warranty | 1-year limited warranty; AppleCare available | 12, 18 or 24 months by grade | 12 months | Varies by seller and platform | None |
| Battery covered by warranty? | New battery fitted | Yes, battery issues listed as covered | No, battery defects and reduced capacity excluded | Varies | No |
| Battery minimum | New battery | 80% or better | At least 85% at dispatch (Like New, Excellent, Very Good) | Varies | Check in person |
| Grades defined | Not graded (new outer shell) | Yes, four grades | Yes for Like New, Excellent, Very Good; Fair is the most visible wear | Varies | No |
| Returns window | 14 days | 21 days from delivery | 30 days from delivery | Varies | None required |
| Unlocked | Sold SIM-free | Yes, any UK network | Yes, all UK networks | Check listing | Check yourself |
| Model range | iPhone 15 and 16 models only (on the date checked) | Limited, changes with stock | iPhone X to 16 series, Samsung, Pixel, Nothing, OnePlus | Very wide | Anything |
How The Tech Gadgets measures up against the same checklist
The Tech Gadgets is a Manchester-based online retailer that refurbishes the phones it sells. It is not Apple- or Samsung-certified, and the phones are not refurbished by the manufacturer. Here is how its published policies answer the nine questions, including where it is weaker than some alternatives.
- Who refurbished it: The Tech Gadgets. Each phone is tested, cleaned, factory reset and signed out of the previous owner's account. Phones are activated before dispatch as part of testing.
- Warranty: 12 months on refurbished and pre-owned phones, covering manufacturing defects and functional malfunctions. It excludes physical damage, water damage, electrical damage, and battery defects or reduced battery capacity. A faulty phone must be sent back first; The Tech Gadgets repairs it, or replaces it if repair is not possible. Full terms are on the warranty policy page.
- Battery: product pages state at least 85% battery health on Like New, Excellent and Very Good grades, measured at dispatch. Because the warranty excludes the battery, check the Battery Health reading on arrival and use the 30-day returns window if it is below what was promised.
- Grades: Like New (no visible marks on screen or body), Excellent (light signs of use, hard to spot at arm's length), Very Good (visible marks on the body, screen in good shape) and Fair (the most visible wear).
- Returns: 30 days from delivery, with faulty, wrong or damaged items to be reported within 3 days. You also keep the 14-day legal right to cancel online orders. For a change of mind, you pay return postage and deductions may apply if seals are broken. See the refund policy.
- Unlocked and account-free: every phone is unlocked for all UK networks, and iPhones are supplied with Activation Lock off.
- Delivery: order by 3pm Monday to Friday for same-day dispatch; free UK delivery over £50, usually 1–3 working days. Details are in the shipping policy.
The fair summary: The Tech Gadgets is stronger than the network and manufacturer routes on returns window and model range, and weaker than giffgaff and Apple on battery cover. If a new battery or battery cover is your priority, Apple or giffgaff may suit you better. If you want an older or cheaper model, or an Android phone that the manufacturer does not sell refurbished, a specialist refurbisher is often the only practical route.
Browse all refurbished phones at The Tech Gadgets →
Where is the best place to buy a refurbished iPhone in the UK?
For a refurbished iPhone, the choice usually comes down to Apple's Certified Refurbished store or a specialist refurbisher. Apple fits a new battery and outer shell and gives a one-year warranty, but on 2 October 2026 its UK refurbished iPhone range covered only iPhone 15 and iPhone 16 models. Specialist refurbishers stock older generations and lower price points.
As an example of the price gap, Apple's refurbished iPhone 15 128GB costs more than The Tech Gadgets' 128GB refurbished iPhone 15, whose price depends on grade: Like New costs the most, then Excellent, then Very Good, and Fair is the cheapest (check the product page for today's price). The difference buys you Apple's new battery and shell. If you are unsure whether refurbished is right for you at all, read is a refurbished iPhone worth buying; for model choice, see the best refurbished iPhone to buy in 2026.
Where is the best place to buy a used phone rather than a refurbished one?
A used phone from a private seller has not necessarily been tested, graded or reset by anyone, and you have far weaker legal protection. If you buy privately, meet in person, test the phone with your SIM, check battery health, and watch the seller sign out and erase it. A pre-owned phone from a business is closer to refurbished, because the business owes you Consumer Rights Act protections; judge it with the same nine questions.
Red flags when choosing a refurbished phone seller
- No named business, UK address or contact route.
- No stated battery-health minimum, or warranty terms you cannot read before buying.
- "Unlocked" not mentioned, or "network locked" in the small print.
- Any suggestion that Activation Lock or a previous account "can be removed later".
- A returns window shorter than the 14-day legal cooling-off period for an online purchase from a business.
Frequently asked questions
Is it safe to buy a refurbished phone online in the UK?
Yes, if you buy from a UK business that publishes its warranty, grading, battery minimum and returns policy. Buying online from a business gives you a 14-day cooling-off period and Consumer Rights Act protection for faulty goods. Check that the phone is unlocked and signed out of the previous owner's account when it arrives.
What battery health should a refurbished phone have?
Look for a stated minimum of at least 80%, and ideally 85% or more. Apple says iPhone 14 and earlier batteries are designed to retain 80 per cent capacity at 500 complete cycles, and iPhone 15 models at 1,000 cycles. The Tech Gadgets states at least 85% at dispatch on Like New, Excellent and Very Good grades.
Do refurbished phones from networks come unlocked?
giffgaff says all its refurbished phones are unlocked for any UK network. More generally, Ofcom banned UK mobile companies from selling locked handsets from 17 December 2021. Check the specific seller's listing, and test with your own SIM on arrival.
Does a refurbished phone warranty cover the battery?
It depends on the seller. giffgaff lists battery issues as covered by its refurbished warranty. Apple fits a new battery. The Tech Gadgets' 12-month warranty excludes battery defects and reduced capacity, so check battery health within the 30-day returns window. Always read the exclusions list before buying.
Which is the best refurbished phone website in the UK?
There is no single best website for everyone. The best one for you is the seller that answers all nine checklist questions in writing at a price you are comfortable with. Compare at least two sellers on warranty exclusions, battery minimum and returns window, not only on price.
See refurbished phones with a 12-month warranty and 30-day returns →