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mendmyi
Sell your Galaxy S21 5G to mendmyi, paid the same day

Sell Your Samsung Galaxy S21 5G in Any Condition

2021 · G991b, SC-51B, SCG09, SM-G9910, SM-G991B, SM-G991N, SM-G991Q, SM-G991U1, SM-G991W

We pay up to £123, paid the same day.

Selling your Samsung Galaxy S21 5G starts with the condition you choose. Cracked glass, physical damage and a worn battery are all condition choices, so the quote matches the phone as it is. Once we inspect the device and confirm an offer, it is held for 14 days. You can choose free collection, our Haverhill counter or posting it in, and the route does not alter the offer.

Storage
Condition
Confirm your device matches - tick all that apply:

Not sure whether a part is original? How to check a refurbished phone

Before you sell

We cannot buy a device that is still under contract or on finance, because until it is paid off you are not yet its legal owner. We also cannot buy a device that is part of an ongoing insurance claim, or that has been reported lost or stolen.

We record the name and address of everyone we buy from, and check them against photo ID and proof of address. HMRC requires it: buying from a private seller, we have to raise the purchase invoice ourselves and it must carry your details. Bring the documents into the shop and show us, or send a photo if the device is reaching us another way.

GOV.UK: VAT margin schemes, section 6.2
We'll pay youCalculating your price

Choose a storage size for a price

★★★★★ 4.9 from 767 reviews

Combined rating across Google, Trustpilot and Facebook reviews.

Paid the same day

Bank transfer as soon as your device is checked, or store credit towards an upgrade or downgrade.

Price held 14 days

Once we send your offer it will not drop, so you have time to decide.

We repair, so faulty still pays

Cracked screen or worn battery is a job on our bench, not a write-off.

Not the Galaxy S21 5G storage or condition you were looking for?

We buy a lot more than we list here. Older iPhones, Samsung and Pixel handsets, iPads, Apple Watches, MacBooks and games consoles all get a real offer, and a cracked or faulty device is still worth something to us because we repair them in house. Tell us what you have and we will come back with a firm price.

No obligation, and nothing to pay. We will not give you a number we cannot honour, so if we need to see it first we will say so.

Three steps

How selling your Galaxy S21 5G works

No haggling, no waiting on a callback, and no offer that quietly drops when you arrive.

Get your price

Pick your Galaxy S21 5G storage and condition above and the price we pay appears straight away, no waiting for a callback.

Get it to us, three ways

Walk into the shop, book a free collection from your door within 5 miles, or post it free from anywhere in mainland UK.

Paid the same day

Accept the offer and you are paid there and then, by bank transfer, or store credit towards an upgrade or downgrade.

How selling your phone works, start to finish →

Your price

What your Galaxy S21 5G is worth depends on

Storage

Bigger storage means a better price. Tell the finder above which Galaxy S21 5G you have and it prices that exact variant.

Check which storage version you have, because we buy both the 128GB and the 256GB Galaxy S21 5G. Picking the right capacity in the quote form means the details of the sale match the handset in front of you.

Screen condition

A cracked screen does not drop you to a faulty price. You keep the condition the phone is otherwise in and we simply take off what the glass costs us to replace, because we replace them ourselves.

Body and connector

Dents, scuffs and cracks to the casing are graded as part of the overall condition. A cracked back or a bent frame lowers the offer but rarely rules a device out.

You can send the Galaxy S21 5G to us by arranging a free collection, dropping it off at our Haverhill counter or posting it in. The route you choose does not change the offer, so it is simply a matter of convenience.

Battery health

We check battery condition ourselves on the bench rather than asking you to self-report a figure online, since there is no single on-device reading we can rely on for every brand. A genuinely worn cell comes off at what a real replacement costs us, worked out once we have the Galaxy S21 5G in front of us.

Start by choosing the condition of your Galaxy S21 5G accurately. Cracked glass, physical damage and a worn battery are all part of the condition choices, so the offer we confirm will match the phone as it actually is. There is no need to repair those faults before getting a quote.

The Galaxy S21 5G holds a 4000 mAh battery, but age can leave that battery holding noticeably less charge. If yours is in that position, choose the worn battery option honestly. We accept a worn battery and you will not need to replace it before selling.

Whether it powers on

A device that boots and passes our checks is worth more than one that does not, but a dead handset is still worth telling us about rather than binning.

iCloud or Google account lock

We can only buy your Galaxy S21 5G once it is signed out of your Google account, which is what clears Factory Reset Protection.

Before sending the Galaxy S21 5G, remove your Google account and switch off any screen lock. A phone that is still protected by factory reset protection is tied to your profile, and that has to be cleared before we can process the sale, so dealing with it in advance avoids a delay.

Original parts matter to the price: an aftermarket screen, battery or camera fitted by someone else changes what we can pay. If you are not sure what is in your Galaxy S21 5G, our guide on how to check a refurbished phone walks through what to look for.

Five minutes

Before you sell: five minutes that protect you

Do these before you hand the device over and the sale goes through without a hitch.

  • 1.Back up what you want to keep

    Photos, contacts and anything else you would not want to lose. If an upgrade is replacing it, here is our guide to moving everything to your new phone.

  • 2.Sign out of iCloud or your Google account

    Turn off Find My before you hand over the Galaxy S21 5G. A device still signed in cannot be bought from you.

  • 3.Take out the SIM and any memory card

    These are yours to keep and are not part of the sale.

  • 4.Note down the IMEI

    Dial *#06# or check Settings to find it, in case you want a record for your own files.

Want the full walkthrough? Read our guide on how to wipe your phone before selling.

No surprises

Ownership, ID and your data

Three things worth knowing before you sell anything to anyone, not just to us.

The device has to be yours to sell

We cannot buy a device that is still under contract or on finance, because until it is paid off you are not yet its legal owner. We also cannot buy a device that is part of an ongoing insurance claim, or that has been reported lost or stolen.

"This device is not under contract or finance, is not part of an insurance claim, and has not been reported lost or stolen - I own it outright."

We record name, address and ID on every purchase

We record the name and address of everyone we buy from, and check them against photo ID and proof of address. HMRC requires it: buying from a private seller, we have to raise the purchase invoice ourselves and it must carry your details. Bring the documents into the shop and show us, or send a photo if the device is reaching us another way.

It protects you as much as us: the purchase can always be traced back to a genuine sale rather than an anonymous one. A photocard driving licence showing your current address covers both documents on its own.

GOV.UK: VAT margin schemes, section 6.2

Your data is wiped at our shop

Once your device is checked in, it is fully wiped and factory reset at our shop before it goes anywhere else. Nothing of yours is left behind on it.

Locked in

Your price is held for 14 days

Once we send you an offer for your Galaxy S21 5G, it is held for 14 days. That gives you time to compare us against the online recyclers before deciding, without the price moving under you.

What Our Customers Say

Rated 5★ across multiple platforms

Darren
“Brilliant efficient service, never ever trade your old Iphones in with anyone else!!!”
Trustpilot
Ann
“Friendly attentive staff, who listened well to the situation regarding my broken phone, and was able to provide sound support and advice. Thank you.”
Trustpilot
Haydar
“They fixed my phone right away, thank you”
Facebook
Naser
“My phone had a cracked back glass, and I brought it in for repair yesterday. The repair was done perfectly, and everything looks great. The customer service was professional and friendly, and my phone was ready right on time. I’m very satisfied with the service and would highly recommend them.”
Google
Donna
“Had to take my son’s iPhone in for a repair. Was fitted with a new battery within an hour and screen sorted where battery had swollen. Excellent service and would definitely recommend.”
Trustpilot
Cheryl
“Fantastic service today; many thanks to the young man who helped me, sorry I did not catch your name. without any booking he was able to repair my daughter’s phone very fast. Thanks will recommend to everyone 😀”
Google
Karen
“Popped in for help with an iPhone. Service was great, helpful, polite and friendly. They sorted the issue. Great service. Would definitely recommend 👌”
Google
john
“Nothing is too hard in the store, a very helpful and knowledgeable young man”
Google

Selling your Galaxy S21 5G

Once you've checked my Galaxy S21 5G and sent me an offer, how long do I have to accept it?

Once we inspect the device and confirm the offer, it stays valid for 14 days. You can take your time to decide without the offer changing.

Can I expect the quote for my Galaxy S21 5G to drop after your physical inspection?

No, the quote we show you is not an opening offer, so it will not be lowered when the phone arrives. If the Galaxy S21 5G matches the condition you chose, the amount we pay is the amount quoted.

Can I sell my Galaxy S21 5G as it is, with a cracked screen and a worn battery?

Yes, sell it as it is. A cracked screen and a worn battery are both condition choices you make when requesting a quote, and the offer will take both faults into account.

Is it a problem if my Galaxy S21 5G is still linked to my Google account and has a screen lock on?

Yes, it is a problem. Sign out of the Google account and remove the screen lock before sending the phone, because doing so clears factory reset protection and avoids a delay when the device is checked.

Can I bring my Galaxy S21 5G to your shop rather than post it, and does that change what I receive for it?

Yes, you can bring it to our Haverhill counter. We also offer a free collection and the option to post the phone in, and the quote is the same for all three routes.

Will you need to see proof of who I am before paying me for my Galaxy S21 5G, and will the money go out immediately?

Yes, photo ID and proof of address are required for every purchase, with no exceptions. Once those details are confirmed, payment for the Galaxy S21 5G goes out the same day, regardless of how the phone arrived.

More ways to sell

Not in Haverhill?

We collect free from towns across the area, or send a tracked postage label.