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![Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U [RETAIL BOX]](https://i5.walmartimages.com/seo/Fully-Unlocked-Samsung-Galaxy-S21-Ultra-5G-128GB-SM-G998U-RETAIL-BOX_6bf25aa9-acfb-47ce-8a87-d744a97dcd9b.74994b69d56ede587e6375509868be36.jpeg)
![Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U [RETAIL BOX]](https://i5.walmartimages.com/asr/61a09a1d-9ddf-46bb-9a4f-59af26f7e4f1.ebd8b5d215d5f6726b90601c2d45f10c.jpeg)
![Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U [RETAIL BOX]](https://i5.walmartimages.com/asr/2238a1a4-fe86-4db6-b0b4-b730d5c05cfb.68ca07a05e797f74585737abd858fcbb.jpeg)
![Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U [RETAIL BOX]](https://i5.walmartimages.com/seo/Fully-Unlocked-Samsung-Galaxy-S21-Ultra-5G-128GB-SM-G998U-RETAIL-BOX_6bf25aa9-acfb-47ce-8a87-d744a97dcd9b.74994b69d56ede587e6375509868be36.jpeg?odnWidth=180&odnHeight=180&odnBg=ffffff)
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![Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U [RETAIL BOX]](https://www.ubuy.je/productimg/?image=aHR0cHM6Ly9pNS53YWxtYXJ0aW1hZ2VzLmNvbS9zZW8vRnVsbHktVW5sb2NrZWQtU2Ftc3VuZy1HYWxheHktUzIxLVVsdHJhLTVHLTEyOEdCLVNNLUc5OThVLVJFVEFJTC1CT1hfNmJmMjVhYTktYWNmYi00N2NlLThhODctZDc0NGE5N2RjZDliLjc0OTk0YjY5ZDU2ZWRlNTg3ZTYzNzU1MDk4NjhiZTM2LmpwZWc.jpg)
Item #:
170649934
Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U [RETAIL BOX]
75% of respondents would recommend this to a friend
Item #:
170649934
GBP 398
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 1 item left in stock.
Order now and get it around Friday, September 11
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Our devices are literally with no sign of use, fully functional with 100% Battery health.
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What Stands Out
Fully Unlocked
Experience ultimate freedom with a fully unlocked device, allowing use on any carrier without restrictions, increasing flexibility for users who frequently travel or prefer specific network options.
Exceptional Camera System
Capture stunning photos and videos with a versatile camera system featuring 108MP resolution, 100x Space Zoom, and advanced night mode for professional-quality imagery and creativity—ideal for photography enthusiasts.
5G Capability
Enjoy lightning-fast data speeds with 5G connectivity, ensuring seamless streaming, downloading, and browsing while future-proofing your investment in technology enhancements as networks evolve.
Product Details
- Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U RETAIL BOX
| Device type | Unlocked Cell Phones |
| Screen size | 6.8" (17.3 cm) |
| Wireless | 5G |
| HD capacity | 128 GB |
| Ram memory | 12 GB |
| Brand | Samsung |
| Mobile OS | Android |
| Series | S21 |
| Model name | Samsung Galaxy S21 Ultra |
| Service provider | AT&T; T-Mobile; Verizon |
| Resolution | 3200x1440 |
| Rear cam mpx | 108 MP |
| Front cam mpx | 40 MP |
| Color | Silver |
| Accessories included | Original Box, User Manual, Charging Cable, Sim Ejector Tool |
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
-
Photography Enthusiasts
The Galaxy S21 Ultra boasts a superior camera system, ideal for users who prioritize high-quality photography.
-
Power Users
With its high performance and 128GB storage, it suits users needing a reliable device for demanding applications.
-
5G Users
This phone allows users to take full advantage of 5G networks for faster data speeds and improved connectivity.
-
Budget-Conscious Consumers
The Galaxy S21 Ultra is a premium device, making it unsuitable for users looking for low-cost smartphones.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What condition are the devices in?
Answer: The devices are in excellent condition with no signs of use. -
Question:
What does the 90-day warranty cover?
Answer: The warranty covers any functional defects in the device within the 90 days. -
Question:
Is this phone compatible with my carrier?
Answer: Yes, it's factory unlocked and compatible with all major carriers.
Samsung Galaxy S21 Ultra 5G Unlocked Phones Editorial Review
Fully Unlocked Samsung Galaxy S21 Ultra 5G 128GB SM-G998U offers a stunning 6.8-inch display with a resolution of 3200x1440, perfect for enjoying high-definition content. With a powerful 12 GB RAM and 128 GB internal storage, it provides ample space for apps and media. The 108 MP rear camera ensures stunning photography, while the 40 MP front camera is ideal for selfies. Users appreciate its versatility with compatibility across major carriers such as AT&T, T-Mobile, and Verizon. Although some might find the weight of 0.5 lbs slightly heavier than competitors, the premium features make it a top choice in the smartphone market.
Customer Reviews & Ratings
8 customers ratings
-
5 Star
25%
-
4 Star
12%
-
3 Star
12%
-
2 Star
12%
-
1 Star
37%
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Pros
- Stunning 6.8" AMOLED display
- Impressive 108 MP rear camera
- Robust 12 GB RAM for multitasking
- Compatible with multiple carriers
- Comes with necessary accessories
Cons
- Slightly heavier compared to other models
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
EK
Emmanuel
Verified buyer
“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
F
fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
LC
Leana
Verified buyer
“Ubuy is extremely efficient and to order online is an easy process. The verity of products to buy is really unlimited! My order was urgent and I got it on time. The products are great! Thank you Ubuy!”
25 August 2026 · via Trustpilot
HL
Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
GBP 398
Order now and get it around Friday, September 11
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 1 item left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Devices are verified with Samsung Diagnostic + Phonecheck Software.
- No signs of use, ensuring top condition.
- Factory unlocked for all major carriers including T-Mobile, AT&T, and Verizon.
- Includes original box, user manual, charging cable, and sim ejector tool.
- Comes with a 90-day warranty for peace of mind.
- Please note: fast adapter charger and sim card not included.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.