- Free postage
- Price locked for 2 days
- Paid by bank transfer
- Checked within 2 working days
Sell your Microsoft Surface Laptop 4 15-inch (2021) for cash
Up to£40
How much is my Microsoft Surface Laptop 4 15-inch (2021) worth in 2026?
Thinking of selling your Microsoft Surface Laptop 4 15-inch (2021)? It could be worth up to £40. What you get depends on two things: its configuration and its condition. Answer a few quick questions and you'll see your price straight away. There's no account to set up first.
It doesn't need to be perfect. You can sell a Microsoft Surface Laptop 4 15-inch (2021) that works perfectly, trade in one with a cracked screen, or recycle one that won't switch on at all. Every condition has a price.
Not sure what's inside? Go to Settings > System > About to see the processor and RAM, and Settings > System > Storage for the drive size.
Why sell your Microsoft Surface Laptop 4 15-inch (2021) now?
Trade-in prices don't stand still. Each time a newer model comes out, older ones drop in value.
If your Microsoft Surface Laptop 4 15-inch (2021) is sitting in a drawer, it's losing value every month. Selling sooner almost always means more cash.
Why sell your Microsoft Surface Laptop 4 15-inch (2021) to us?
Paid straight to your bank
We check your device within 2 working days of it arriving. Once it passes, the money reaches your bank within 3 working days.
Free postage
Print your trade-in slip, pack your device and post it to us for free within 7 days of confirming your offer.
Safe, and better for the planet
Every device is fully wiped when it arrives, then refurbished or recycled responsibly instead of sitting in a drawer.
How to sell my Microsoft Surface Laptop 4 15-inch (2021) in 3 steps
No listings. No haggling with strangers. No fees taken off your price.
Get your price
Answer a few quick questions about your Microsoft Surface Laptop 4 15-inch (2021). Your offer appears instantly and stays locked for 2 days.
Post it to us
Wipe your laptop, print the trade-in slip from your account, and post it within 7 days of confirming.
Get paid
We check it within 2 working days of it arriving. Once it passes, the money lands in your bank within 3 working days.
What affects your Microsoft Surface Laptop 4 15-inch (2021) trade in price?
Two of the same model can be worth very different amounts. These are the things that matter most.
Passwords and locks
Remove any BIOS or startup password and sign out of your Microsoft account. A locked laptop can't be reset.
Configuration
The processor, RAM and storage set the starting price.
The screen
Cracks, dead pixels or lines lower the offer.
The body and hinges
Cracked casing or a loose hinge reduces the value.
Battery
A battery that won't hold charge lowers the price.
Keyboard, trackpad and ports
Missing keys, a dead trackpad or broken ports change the price.
Charger
Send the original charger with it. A missing charger can lower the final offer when we check it.
Be honest when you answer the questions. It means your offer won't change when we check it.
Can I sell a broken Microsoft Surface Laptop 4 15-inch (2021)?
Yes. We buy laptops that are cracked, damaged or not working.
That includes a laptop that won't switch on, or has a faulty camera, speaker or button. Tell us it isn't working when you get your price. There's nothing to repair first.
We can't accept a laptop that is bent or has liquid damage (signs of oxidation).
Selling your Microsoft Surface Laptop 4 15-inch (2021): PhoneMart vs other UK buyers
How selling your Microsoft Surface Laptop 4 15-inch (2021) to us compares with the biggest names in UK trade-in.
| Compared | PhoneMart | musicMagpie | Mazuma | Envirofone |
|---|---|---|---|---|
| How you're paid | Cash to your bank | Cash to your bank | Cash | Cash to your bank, or 7% more as store credit |
| When you're paid | Within 3 working days of passing its check | Same day, once checked | Same day, if it arrives Mon–Fri before 2pm | Same day |
| Sending it | Free postage, within 7 days of confirming | Free, by post or at a Timpson store | Free label or QR code | Free Royal Mail postage |
| Price held for | 2 days | 21 days | Not stated | 14 days |
| Broken or cracked | Yes, cracked and not working too | Yes | Yes, unless snapped in half | Yes, any condition |
Other buyers' terms taken from their own websites, checked 12 November 2026. Their prices for your exact device may differ. Sources: musicMagpie, Mazuma, Envirofone.
Before you trade in your Microsoft Surface Laptop 4 15-inch (2021)
A few minutes of prep keeps your files safe and gets your trade-in through first time.
Forgotten a step? We wipe every device that arrives, so your data is never left on it.
- 1
Back it up
Use OneDrive or an external drive.
- 2
Turn off Find my device
Settings > Privacy and security > Find my device.
- 3
Remove any BIOS or startup password
- 4
Reset the laptop
Settings > System > Recovery > Reset this PC > Remove everything.
- 5
Pack it safely
Use a padded box.
- 6
Include the charger if you have it
Get your Microsoft Surface Laptop 4 15-inch (2021) price
Answer a few quick questions and see your offer straight away. Postage is free.
Want to sell something else?
Sell Microsoft Surface Laptop 4 15-inch (2021): your questions answered
Up to £40. The exact amount depends on configuration and condition. Answer a few quick questions at the top of the page for your offer.
Yes. It came out in 2021, and we still pay up to £40 for it today.
Yes. Tell us the screen is cracked and you'll see your price straight away. You don't need to repair it first.
Get your price, confirm the offer, then print your trade-in slip and post your laptop to us within 7 days.
Yes. Sign out and turn off Find my device. If it's still locked, we can't complete the trade-in and will get in touch to help you sort it.
Your offer is locked for 2 days. Once you confirm it, you have 7 days to post it.
We check your Microsoft Surface Laptop 4 15-inch (2021) within 2 working days of it arriving. If it passes, the money reaches your bank within 3 working days.
We'll send you a revised offer. If you'd rather not accept it, we'll send your Microsoft Surface Laptop 4 15-inch (2021) back to you free of charge.
Yes. Every device is fully wiped when it arrives. It's still worth erasing it yourself before you post it.
Sell a similar laptop
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Upgrading? Get a refurbished laptop
Once you sell your Microsoft Surface Laptop 4 15-inch (2021), put the cash towards something newer. Every refurbished laptop at PhoneMart is tested with up to 100 checks and comes with a 24-month warranty. Delivery is free and tracked on orders over £50.
