Features & Benefits
- New Samsung Galaxy S21 Ultra 5G G998U
- 128GB storage capacity
- Cosmic Black color
- Includes original box and fast charging cable
- FREE 2-Day Shipping (ships within 24 hours)
- Ready to use immediately upon purchase
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Item #:
81413799
BRAND NEW Samsung Galaxy S21 Ultra 5G G998U 128GB GSM+CDMA Factory Unlocked
86% of respondents would recommend this to a friend
Item #:
81413799
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What Stands Out
Camera Excellence
The Samsung Galaxy S21 Ultra features an impressive 108MP camera, providing stunning photo quality and versatility, making it ideal for photography enthusiasts and content creators.
Display Superiority
With a vibrant 6.8-inch Dynamic AMOLED display, the Galaxy S21 Ultra offers unmatched visual clarity and color accuracy for streaming, gaming, and everyday use.
5G Connectivity
Equipped with advanced 5G technology, this smartphone ensures lightning-fast internet speeds and seamless connectivity, perfect for users who demand reliability and speed on the go.
Product Details
| Processor | Octa Core |
| Screen Size | 6.8 in (17.3 cm) |
| Custom Bundle | Yes |
| Chipset Model | Qualcomm Snapdragon 888 |
| Color | Black |
| Memory Card Type | MicroSD |
| MPN | SM-G998UZKAXAA |
| Model Number | SM-G998U |
| Lock Status | Factory Unlocked |
| SIM Card Slot | Single SIM |
| Brand | Samsung |
| Manufacturer Warranty | 1 Month |
| Network | Unlocked |
| Model | Samsung Galaxy S21 Ultra 5G |
| Connectivity | USB Type-C, 5G, Bluetooth, Wi-Fi, NFC, GPS |
| Style | Bar |
| Operating System | Android |
| Features | Proximity Sensor, 8K Video Recording, Laser AF Sensor, Gyro Sensor, Fast Wireless Charging, Infinity-O Display, Telephoto Lens, Ultrasonic Fingerprint Sensor, Facial Recognition, Quad Rear Camera, Wide-Angle Camera, Accelerometer, Barometer, Ultra Wide-Angle Camera |
| Storage Capacity | 128 GB |
| Contract | Without Contract |
| Camera Resolution | 12.0 MP |
| RAM | 12 GB |
| Country of Origin | Vietnam |
| UPC | 0887276473345 |
| Item Weight | 8 lbs (3.63 kg) |
Who Should Buy?
-
Photography Enthusiasts
With its advanced camera system, the Galaxy S21 Ultra is perfect for capturing stunning photos and videos.
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Tech-Savvy Users
This device offers cutting-edge technology, including 5G capability and powerful processing for tech enthusiasts.
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Business Professionals
The phone's multitasking features and productivity tools are ideal for professionals needing effective communication and organization.
-
Budget-Conscious Buyers
The premium price point may be unsuitable for those looking for a more affordable smartphone option.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Is the phone fully unlocked?
Answer: Yes, the Samsung Galaxy S21 Ultra is fully unlocked. -
Question:
What is included with the phone?
Answer: The phone includes the original box, USB-C to USB-C fast charging cable, and user manual. -
Question:
How long does shipping take?
Answer: Shipping is free and takes 2 days, with the phone shipping within 24 hours of purchase.
SM-G998U Editorial Review
BRAND NEW Samsung Galaxy S21 Ultra 5G G998U 128GB GSM+CDMA Factory Unlocked offers an impressive performance with its Octa Core Processor and Qualcomm Snapdragon 888 chipset, ensuring smooth multitasking and a vibrant 6.8-inch Infinity-O display for an immersive viewing experience. Users have praised its camera capabilities, particularly the ability to record in 8K, delivering stunning image quality. While many enjoyed long battery life reports, issues such as hairline cracks on the back and fluctuating screen display have been noted by some. The Galaxy S21 Ultra is factory unlocked, making it versatile for various networks and user preferences.
Customer Reviews & Ratings
219 customers ratings
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5 Star
79%
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4 Star
10%
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3 Star
4%
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2 Star
2%
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1 Star
3%
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Pros
- Exceptional camera performance with 8K video recording
- Fast processor ensures smooth operation
- Large 6.8-inch screen for immersive viewing
- Factory unlocked for network versatility
- Slim design fits comfortably in hand
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
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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
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