Samsung Galaxy S21 Ultra - Grade A, Phantom Black, 128GB
Samsung Galaxy S21 Ultra - Grade A, Phantom Black, 128GB
The Samsung Galaxy S21 Ultra Grade A in Phantom Black is Samsung's 2021 flagship at a much lower price than new. It comes with 128GB of storage and 12GB RAM, and a large 6.8-inch Dynamic AMOLED 2X display with a 120Hz refresh rate for gaming, streaming and browsing.
The quad rear camera has a 108MP main lens, a 12MP ultra-wide lens, a 10MP 3x telephoto lens and a 10MP 10x periscope telephoto lens for sharp zoom shots. The 40MP front camera takes detailed selfies and clear video calls.
The 5,000mAh battery supports fast and wireless charging, so you stay powered all day. This Grade A device has been fully tested, cleaned and reset for reliable use.
Key features
- 6.8-inch Dynamic AMOLED 2X display, 120Hz
- 128GB storage, 12GB RAM
- Quad rear camera: 108MP main, 12MP ultra-wide, 10MP 3x telephoto, 10MP 10x telephoto
- 40MP front camera
- 5,000mAh battery with fast and wireless charging
- S Pen support (S Pen sold separately)
- Grade A condition – tested and fully functional
Frequently asked questions
What does Grade A mean?
Looks almost brand new. It may feature little to no visible signs of wear, such as very faint micro-scratches or light scuffing that are completely invisible from a normal viewing distance.
Is this phone unlocked?
Yes, it works on any UK network.
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Delivery & Returns
Delivery & Returns
Last updated February 08, 2025
Thank you for your consideration. If you are not completely satisfied with your purchase for any reason, you may return it to us for store credit or an exchange.
Payment Information
During the checkout at our website you can select the following secure payment methods:
- American Express
- Apple Pay
- Google Pay
- Visa
- Mastercard
- PayPal
If you have any questions please contact our customer service: contact@phone-base.co.uk
Shipping
Cutoff time: 16:30 (GMT +1) Order Processing Time: (3-5 working days) Delivery time: According to the method We use Royal Mail as our shipping partner.
Refunds
After receiving your return and inspecting the condition of your item, we will process your return or exchange. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. We will notify you by email when your return has been processed.
Return Policy
This return policy is valid for the countries: United Kingdom
You have the right to return 14 days after the arrival of your order.
The products can easily be returned.
The actual return costs are the responsibility of the customer and must be paid to the shipping party. This applies in the case of dissatisfied products.
With most packages, the return labels are in the box. If this is not the case, send us an email at contact@phone-base.co.uk and we will send them digitally. You can then print them and add them in the return package.
Note: only products in NEW* condition can be returned. We reserve the right to refuse a return with traces of use.
*New = These are unopened products in their original packaging and products that have never been used.
Once we have received and verified your return, you will have your refund within 2-3 business days using the payment method you used when ordering.
We comply with all relevant laws regarding returns and refunds.
We reserve the right to change our return and refund policy at any time to comply with applicable legal requirements.
Return Process
To return an item, please email customer service at contact@phone-base.co.uk to obtain a Return Merchandise Authorisation (RMA) number. After receiving an RMA number, place the item securely in its original packaging, and mail your return to the following address:
Phone Base
Attn: Returns
RMA#
220 Holderness Rd
Hull, HU9 2AA
United Kingdom
Questions
If you have any questions regarding our Refunds policy, free free to submit your query here.

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I had a speed problem with my new tablet and after several emails with knowledgeable support they managed to resolve the issue as it was a problem with my old router. Now Its replaced , everything is way better, not just the tablet. I also have to commend the response turn around time to my emails, which was really fast.
Happy to purchase and got a good deal. Condition is of the product matched description.
Best phone ever, size is perfect, everything is really large for by awful eyesight recommend zanco tiny T1 even though it’s not very tiny!
Great phone in clean condition
Bought IPhone 15 and it was in very good condition and working well. Very pleased with my purchase
I am very pleased with the purchase. It is a great store. Everything is exactly as described. The phone is brand new, and the packaging is sealed with the original stickers. I would also like to express my gratitude for the significant discount. I will certainly keep this marketplace in mind for future purchases and would recommend it to others. Sincerely.
A truly brand-new phone. Factory-sealed packaging. Thank you. A really great discount and an awesome seller. Sincerely.
Great price for phone!
Very nice phone , not the latest , but it’s good for me, looks like new , very happy 👍🏻😀
I'm delighted with my purchase. The slim S24 feels great in my hand and simple to use. The sales person was extremely helpful
Fantastic service at a fantastic price delivered special deliver the following day
I would recommend this company
Fast easy
Excellent company to deal with cannot fault
First purchase from phone base. Customer service are helpful, professional and responsive. Phone was in tip top condition and boxed which was an unexpected extra. I would definitely buy a device from them again.