Sell Samsung Galaxy S21 Plus 5G 128GB in the UK – Quick, Safe & Top Cash Offer

If you're searching for the best place to sell your Samsung Galaxy S21 Plus 5G 128GB online in the UK, Sell.Zextons is your most reliable trade-in partner. Whether your phone is brand new, used, or has light wear and tear, we guarantee a fast online quote, free postage, and same-day bank transfer — with no hidden charges.

As phone models depreciate over time, now is the ideal moment to turn your Galaxy S21 Plus into real value and make space for your next upgrade.

Why Sell Your Galaxy S21 Plus 5G 128GB with Sell.Zextons?

• Instant Online Quote Based on Condition and Network Status
  
  

• Free, Fully Tracked Royal Mail Postage Across the UK
  
  

• Same-Day Bank Payment After Device Approval
  
  

• No Surprise Deductions – Get What You're Quoted
  
  

• Trusted UK Platform with Thousands of Happy Sellers
  
  

We make selling your Samsung phone simple, secure, and convenient.

What Affects the Resale Value of Samsung Galaxy S21 Plus 5G 128GB?

Your device quote is influenced by several factors, including:

• Cosmetic Condition – Phones without scratches or screen damage fetch higher prices.
  
  

• Storage Capacity – This page covers the 128GB variant, popular for everyday users.
  
  

• Network Lock Status – Unlocked devices typically earn better trade-in prices.
  
  

• Functionality – Phones that fully power on, charge, and perform as expected are worth more.
  
  

• Original Box or Accessories – While not required, they may help increase your offer slightly.
  
  

How to Sell Your Samsung Galaxy S21 Plus 128GB Online with Us

Selling your phone with Sell.Zextons is fast, easy, and doesn’t require technical know-how. Here's how:

1. Get an Instant Online Valuation
   Select your phone's condition, storage, and network lock status to generate an immediate quote.
   
   

2. Ship Your Phone for Free
   We'll email you a prepaid and tracked shipping label. Pack your device securely and send it using Royal Mail.
   
   

3. Get Paid the Same Day
   Once your phone is received and passes verification, the full quoted amount is transferred to your bank account.
   
   

No more auctions, time-wasting messages, or unsafe meetups—just straightforward, transparent trade-ins.

Why Now Is the Best Time to Sell Your Samsung S21 Plus 5G 128GB

The Samsung Galaxy S21 Plus 5G 128GB still holds solid market value, but as newer models are released, the resale price will naturally drop. By selling now, you lock in a better offer and avoid further depreciation. Use that cash to upgrade or invest it elsewhere.

Explore More Trade-In Options

• Sell Samsung Phones – View our full range of Samsung phone trade-in options.
  
  

• Sell Samsung Galaxy S21 Series – Trade in other models like the S21 5G or S21 Ultra.
  
  

• Sell My Phone UK – Browse trade-in prices for iPhones, Pixels, and other Android phones.
  
  

Frequently Asked Questions

How much can I sell my Samsung Galaxy S21 Plus 5G 128GB for in the UK?

 Depending on condition, you can get up to £230 or more. Use our quote tool to check the current market value for your specific phone.

Is it safe to sell my phone online through Sell.Zextons?

 Yes. We offer secure postage, data protection, and same-day bank transfers. All phones are data-wiped for your security.

Do you accept Samsung phones that are damaged or have screen issues?

 Yes, we do. Simply describe the faults during your quote request. You’ll still receive a fair, adjusted offer.

Do I need to send my phone in its original box or with a charger?

 No. Accessories and packaging are optional, but including them may slightly increase your offer.