![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_cbe2f53a-c103-422c-9cc6-fe1551231bc7.648b153659fa6fcf977de785718280aa.jpeg?odnWidth=180&odnHeight=180&odnBg=ffffff)
![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)
![Fully Unlocked Samsung Galaxy S21 Ultra 5G 256GB SM-G998U [RETAIL BOX]](https://i5.walmartimages.com/seo/Fully-Unlocked-Samsung-Galaxy-S21-Ultra-5G-256GB-SM-G998U-RETAIL-BOX_6bf25aa9-acfb-47ce-8a87-d744a97dcd9b.74994b69d56ede587e6375509868be36.jpeg?odnWidth=180&odnHeight=180&odnBg=ffffff)
Features & Benefits
- Grade B-, heavy shadow screen
- Compatible with any carrier
- Sleek silver color
- Ample storage capacity of 128GB
- Capture stunning photos with the 108MP camera
- Includes fingerprint and other essential sensors
- Home Page /
- Cell Phones /
- 5G Wireless /
- 5G Unlocked Phones /
- Samsung Galaxy S21 Ultra 5G, Fully Unlocked 128GB, Silv...
0 ratings
Item #:
58650603
Samsung Galaxy S21 Ultra 5G, Fully Unlocked 128GB, Silver, 6.8 in (Good)
81% of respondents would recommend this to a friend
Item #:
58650603
0 ratings
Write a review
Out of stock
Imported from USA store
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Unlocked 128GB Silver Smartphone with 6.8in Screen and 108MP Camera.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
Similar Products
What Stands Out
Fully Unlocked
The pre-owned Samsung Galaxy S21 Ultra is fully unlocked, allowing users to choose their preferred carrier, ensuring flexibility and convenience without restrictions.
Impressive Display
With a stunning 6.8-inch Dynamic AMOLED display, this device offers vibrant colors and crystal-clear visuals, ideal for multimedia consumption and gaming experiences.
Generous Storage
Boasting 128GB of storage, this phone provides ample space for apps, photos, and videos, catering to users who require extensive storage without the need for external options.
Product Details
- Condition: Grade B-, significant signs of usage
- Screen Size: 6.8 inches
- Compatible Carrier/Service: Unlocked
- Color: Silver
- Storage Capacity: 128GB
- Camera: 108 MP, Various Sensors: Fingerprint, accelerometer, gyro, proximity, compass, barometer
- Free Returns, 60 Days
| Brand | Samsung |
| Mobile OS | Android |
| Model name | Galaxy S21 Ultra |
| Screen size | 6.8 in (17.3 cm) |
| HD capacity | 128 GB |
| Battery capacity | 5000 mAh |
| Features | Fingerprint Reader |
| Wireless | 2G,3G,4G,4G+,5G,Bluetooth,Dual-Band,GPS,LTE,NFC,USB Type-C,Wi-Fi |
| Service provider | Unlocked |
| Cellular service plan | No Plan-Unlocked Device |
| Rear cam mpx | 108 MP |
| Front cam mpx | 40 MP |
| Color | Silver |
| Proc. brand | Samsung |
| Device type | Unlocked Cell Phones |
| Has written warranty | No |
| Assembled product weight | 0.5 lb (230 grams) |
| Size | in x in x in (0 x 0 x 0 cm) |
| Has front-facing camera | Y |
Who Should Buy?
-
Photography Enthusiasts
The Galaxy S21 Ultra features an advanced camera system, perfect for capturing high-quality images and videos.
-
Power Users
With its robust processor and 128GB storage, it's ideal for users who multitask or use resource-intensive apps.
-
5G Users
Being 5G compatible, it's great for users looking to take advantage of faster mobile internet speeds.
-
Budget Buyers
Pre-owned models may still be expensive; budget-conscious consumers might find better options elsewhere.
Product Description
Samsung Galaxy S21 Ultra 5G, Fully Unlocked 128GB, Silver, 6.8 in (Good)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the condition of the screen?
Answer: The screen is Grade B- with a heavy shadow. -
Question:
Is the phone compatible with any carrier?
Answer: Yes, it is unlocked and can be used with any carrier or service. -
Question:
What color is the phone?
Answer: The phone is silver in color.
Samsung 5G Unlocked Phones Editorial Review
Samsung Galaxy S21 Ultra 5G, Fully Unlocked 128GB, Silver, 6.8 in offers an impressive 6.8-inch display and a powerful 5000 mAh battery, perfect for all-day use. Users have praised its sleek design, although some noted minor screen damage upon delivery. The phone operates on Android, featuring a 108 MP rear camera for stunning photography and a 40 MP front camera for clear selfies. It's unlocked, allowing for flexibility with service providers, and includes modern connectivity options like 5G, Bluetooth, and Wi-Fi. While some discrepancies in the unlock status were reported, the overall performance remains highly regarded, making it a solid choice for those seeking a feature-rich smartphone.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Impressive 108 MP rear camera for high-quality photos
- Stunning 6.8 inch display for immersive viewing
- Long-lasting 5000 mAh battery
- Supports 5G connectivity for fast internet
- Fully unlocked for service flexibility
Cons
- Minor screen damage reported by some users
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
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.
Currently unavailable.
We don't know when or if this item will be back in stock.
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.)
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
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.