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Samsung Galaxy S21 Ultra 5G | Factory Unlocked Android Cell Phone | US Version 5G Smartphone | Pro-Grade Camera, 8K Video, 108MP High Res | 512GB, Phantom Black (SM-G998UZKFXAA) (Renewed)

  • Based on 108 reviews
Condition: Refurbished - Excellent
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$399.99 Why this price?
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Availability: Only 5 left in stock, order soon!
Fulfilled by Chubbiestech

Arrives Sunday, Oct 12
Order within 13 hours and 52 minutes
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Features

  • 6.8", 1440 x 3200 pixels, Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak), 5000mAh Battery
  • 512GB ROM, 16GB RAM, No SD Card Slot, Qualcomm SM8350 Snapdragon 888 5G (5 nm), Octa-Core, Adreno 660
  • Rear Camera:108MP, f/1.8 + 10MP, f/4.9 + 10MP, f/2.4 + 12MP, f/2.2, Front Camera: 40MP, f/2.2, Android 11, upgradable to Android 12, One UI 4.1
  • CDMA 800/1900, 3G: HSDPA (AWS)/1900/2100, CDMA2000 1xEV-DO, 4G LTE: 1/2/3/4/5/7/8/12/13/14/18/19/20/25/26/28/30/38/39/40/41/46/48/66/71, 5G: 2/5/25/41/66/71/260/261 SA/NSA/Sub6/mmWave - Single SIM
  • US Model. Compatible with Most GSM and CDMA Carriers like T-Mobile, AT&T, MetroPCS, etc. Will Also work with CDMA Carriers Such as Verizon, Straight Talk.

Description

Unleash a new era of mobile supremacy with the Samsung Galaxy S21 Ultra 5G SM-G998U, where innovation meets unmatched excellence. Dive into an immersive visual extravaganza on its expansive display, captivating your senses with vibrant details and stunning colors. Elevate your photography game with an advanced camera system that turns every moment into a visual masterpiece with extraordinary precision. Powered by a formidable processor, this device ensures a seamless and responsive performance, effortlessly adapting to your dynamic lifestyle. The Galaxy S21 Ultra 5G keeps you powered throughout your day, while intuitive features enhance your daily tasks. Immerse yourself in the Samsung ecosystem, offering a seamless interface and unlocking a plethora of functionalities. This sleek and resilient companion goes beyond being a mere phone; it's a symbol of Samsung's commitment to delivering an unparalleled smartphone experience. Redefine your mobile journey and indulge in the extraordinary with the Samsung Galaxy S21 Ultra 5G SM-G998U — where cutting-edge innovation meets an unprecedented level of excellence.

Brand: SAMSUNG


Operating System: Android


Ram Memory Installed Size: 12 GB


CPU Model: Snapdragon


CPU Speed: 2.42 GHz


Memory Storage Capacity: 512 GB


Screen Size: 6.8 Inches


Resolution: 1440 x 3200


Model Name: Galaxy S21 Ultra 5G


Wireless Carrier: Unlocked


Product Dimensions: 6.5 x 2.98 x 0.35 inches


Item Weight: 7.7 ounces


Item model number: Galaxy S21 Ultra 5G


Batteries: 1 Nonstandard Battery batteries required. (included)


OS: Android


RAM: 16 GB


Wireless communication technologies: Cellular


Connectivity technologies: Wi-Fi


GPS: True


Special features: 3G Data Capable, 4G Data Capable, 5G Data Capable, Accelerometer, Bluetooth Enabled, Internet Browser, Music Player, Speakerphone, Touchscreen, Unlocked


Other display features: Wireless


Human Interface Input: Touchscreen


Scanner Resolution: 1440 x 3200


Other camera features: Front


Form Factor: Smartphone


Color: Phantom Black


Battery Power Rating: 5000 Milliamp Hours


Phone Talk Time: 24 Hours


Whats in the box: accessories


Manufacturer: Samsung Electronics


Date First Available: April 21, 2021


Memory Storage Capacity: 512 GB


Standing screen display size: 6.8 Inches


Ram Memory Installed Size: 12 GB


Battery Capacity: 5000 Milliamp Hours


Weight: 0.48 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good
Excellent phone ❤️
Reviewed in the United States on June 20, 2025 by Karen aparicio

  • Su rresponsavilidad
Que los productos ayi bandidos son exelentes
Reviewed in the United States on August 20, 2025 by Diablito .

  • Started to fail 35 days after purchase
The phone first lost volume after 2 weeks I took it to a shop and they were able to fix the volume. 35 days after purchase the phone would randomly shut off. I missed numerous calls because I was unaware of the phone shut down. I contacted Amazon and they informed me that I had to get in touch with the seller, I had contacted Amazon on the first issue and never heard back from anyone. This second issue i again contacted Amazon and they said i had to get with the supplier. Amazon sent them an email and said I should hear from the seller with a couple of days and if not get back in touch with Amazon and they would investigate the claim and should settle in about 7 business days. After a couple of days with no response. Knowing that the phone could fail completely and i travel alot. I contacted Samsung, Samsung said the phone was out of warranty but would send me a brand new phone and dicount it for the same money i had bought the phone from amazon. To this day I have never heard from anyone from the original seller or Amazon. I personally will never buy from that seller and will make sure that anything I buy from Amazon is supplied directly from Amazon. The return policy was bullshit. ... show more
Reviewed in the United States on August 15, 2023 by Thomas Toolis

  • Works perfectly
Had this for about a month now no problems at all.
Reviewed in the United States on July 21, 2024 by A person

  • Perfect! 👌 👍🏾 🥰
Perfect! 👌 👍🏾 🥰
Reviewed in the United States on August 25, 2024 by Agbaeze, Chijioke E.

  • Beware of seller...!!!
Everything great until I discovered that the phone wasn't unlocked because of previous owner's debt with AT&T. All this while on vacation in Europe and trying to set-up an e-sim. What a nightmare!!! So, DON'T buy from this seller
Reviewed in the United States on July 6, 2025 by Eddy G.

  • Great Camera
The 10x optical zoom is amazing
Reviewed in the United States on March 9, 2024 by Peanutboy

  • Condition of product
There was a very big scratch on the top right corner of the phone which i believed it could have been cleaned better
Reviewed in the United States on February 10, 2022 by Amazon Customer

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