Buy & Sell Phones

At Insta Tech, we make buying and selling phones in London simple, fair and fast. Whether you are looking to sell your old iPhone for the best price, find a quality second-hand handset at an affordable cost, trade in your current device towards an upgrade, or get your phone unlocked — we have you covered.

Every phone we buy is fully assessed and every phone we sell is thoroughly tested, cleaned and graded before it reaches the shelf. We offer instant cash payments, same-day transactions and honest pricing across all major brands including Apple, Samsung, Google Pixel, OnePlus, Xiaomi, Huawei and more. No hidden fees, no time-wasting — just a straightforward service you can trust.

Our Buy & Sell Phone Services

From selling your old handset for cash to picking up a quality second-hand device, Insta Tech offers a full range of phone buying and selling services.

📱  Buy a Phone💰  Sell Your Phone
Quality second-hand & refurbished phones in storeEvery phone tested, cleaned & graded before saleAll iPhones, Samsung Galaxy & popular Android modelsCompetitive prices — a fraction of the retail cost30-day return policy on all handsets soldUnlocked phones available — works with any networkInstant cash paid for your old or unwanted phoneFree, no-obligation valuation — find out what it’s worthAll conditions considered: working, faulty or damagediPhones, Samsung, Google Pixel, OnePlus & moreQuick, secure and hassle-free process in storeSame-day payment — walk in and walk out with cash
🔄  Part Exchange / Trade-In🔓  Phone Unlocking Service
Trade in your old phone and put the value towards a new oneInstant trade-in valuation in storeTop trade-in prices for popular modelsUpgrade to a newer handset without the full price tagAny brand, any condition considered for trade-inSimple process — assessed, valued and done in minutesNetwork unlock any phone — works with all UK & international networksPermanent, manufacturer-approved unlocking methodAll iPhone models & Android devices supportedFast turnaround — most unlocks completed the same dayNo data loss and no risk to your warrantyUnlocked phones have higher resale value — unlock before you sell

Our Phone Grading System

Every phone we sell is assessed and graded so you know exactly what you are buying. We are fully transparent about the condition of every handset — no surprises, no hidden faults.

⭐⭐⭐  Grade A⭐⭐  Grade B⭐  Grade C
Excellent conditionGood conditionFair / Heavy use
No scratches or cracksMinor scratchesVisible marks or cracks
Fully functionalFully functionalMay have minor faults
Original accessoriesCharger may be includedNo accessories
Premium price achievedGood value priceBudget-friendly price

Brands We Buy & Sell

We deal in all major smartphone brands. Whether you have an iPhone, a Samsung Galaxy or an Android device from any other manufacturer, we want to hear from you.

Apple iPhoneSamsungGoogle PixelOnePlusXiaomi
HuaweiNokiaMotorolaSony& Many More

Why Buy or Sell With Insta Tech?

We have built our reputation on honesty, fair pricing and a fast, professional service. Here is what you can expect when you walk through our door.

Quality GuaranteedEvery phone we sell is thoroughly tested, cleaned and graded. You know exactly what you are buying — no hidden faults, no nasty surprises.
💰Best Prices PaidWe offer some of the best trade-in and buy prices in London. Get a free, no-obligation valuation and see what your old phone is worth today.
Fast & Hassle-FreeWalk in, get a quote and walk out with cash — often in under 15 minutes. No lengthy forms, no waiting around, no fuss.
🔒Safe & SecureWe handle all transactions securely. Your personal data is fully wiped from any phone we purchase, protecting your privacy completely.
🛡30-Day Buyer GuaranteeAll phones sold at Insta Tech come with a 30-day guarantee. If a fault develops within that period, we will repair or exchange it at no charge.
🤝Honest & TransparentStraightforward pricing with no hidden fees. We tell you exactly what we can offer and why — building trust is at the heart of everything we do.

How to Sell Your Phone — Step by Step

Selling your phone to Insta Tech takes just a few minutes. Here is exactly how the process works:

  • Step 1 — Walk in: Bring your phone into our London store. No appointment needed.
  • Step 2 — Free assessment: Our team inspects your phone and checks its condition, functionality and any faults.
  • Step 3 — Instant offer: We give you a fair, no-obligation cash offer based on the phone’s grade and market value.
  • Step 4 — Accept & get paid: If you are happy with the offer, we pay you immediately — cash in hand, same day.
  • Step 5 — Data wiped: We perform a full, secure factory reset on your device before it is cleaned and prepared for resale.

Frequently Asked Questions

Q: How do I sell my phone to Insta Tech?A: Simply bring your phone into our London store. One of our team will inspect it, grade its condition and give you a free, no-obligation cash offer on the spot. If you’re happy with the price, you’ll receive payment the same day — no waiting.
Q: What condition does my phone need to be in?A: We accept phones in all conditions — from mint to broken. Even if your screen is cracked, the phone won’t turn on, or it has water damage, we may still make you an offer. The better the condition, the higher the price you will receive.
Q: Do you wipe my data before reselling the phone?A: Yes, absolutely. Every phone we purchase undergoes a full factory reset and secure data wipe before it is tested and resold. Your personal information, accounts and files are completely removed — your privacy is fully protected.
Q: Are the phones you sell unlocked?A: Most phones we sell are fully unlocked and compatible with all UK networks. If a phone is network-locked, we will clearly state this and offer an unlocking service so you can use it with your preferred SIM.
Q: Can I part exchange my old phone?A: Yes. Bring in your old phone and its value will be deducted from the price of the handset you want to buy. Part exchange is a great way to upgrade your phone without paying the full price.
Q: What warranty do I get when buying a phone from Insta Tech?A: All phones sold at Insta Tech come with a 30-day guarantee. If a fault develops within this period that was not disclosed at the time of sale, we will repair or exchange the handset at no cost to you.
Buy, Sell or Trade In Your Phone TodayVisit Insta Tech in London for a free, no-obligation valuation on your phone — or browse our range of quality second-hand handsets in store. Walk in, no appointment needed.
📍 Find Us: 785 15h Street, Office 478 Berlin, De 81566
📞 Call Us: 02079160905