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Samsung

Samsung Galaxy S21 Ultra 5G, US Version, 128GB, Phantom Silver - Unlocked (Renewed)

  • Based on 1,016 reviews
Condition: Refurbished - Excellent
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Availability: In Stock.
Fulfilled by Garage Cell LLC
Arrives Tuesday, Mar 10
Order within 6 hours and 49 minutes
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Features

  • The Galaxy S21 Ultra features a massive 6.8-inch Dynamic AMOLED 2X display with Quad HD+ resolution, HDR10+ support, and an adaptive 120Hz refresh rate that scales dynamically to deliver ultra-smooth visuals while conserving battery life.
  • Its rear camera system is a powerhouse, combining a 108MP wide sensor, 12MP ultra-wide lens, and two telephoto lenses (10MP each) with 3x and 10x optical zoom. With up to 100x Space Zoom, advanced AI scene optimization, and laser autofocus, the S21 Ultra captures extraordinary detail, whether shooting landscapes, zoomed-in subjects, or 8K video content.
  • The phone is powered by Snapdragon 888 (U.S.) or Exynos 2100 (global) paired with up to 16GB of RAM, making it exceptionally fast for gaming, multitasking, and demanding productivity apps. Coupled with Samsung DeX support, the Ultra can be used like a full desktop workstation for editing, presentations, and professional workflows.
  • The Galaxy S21 Ultra offers a 5,000 mAh intelligent adaptive battery with fast wired charging, fast wireless charging, and reverse wireless charging. Its AI-driven battery management optimizes power use based on your habits, allowing longer usage without frequent rechargingeven with heavy multitasking or 5G connectivity.
  • Security and connectivity are top-tier, featuring Samsung Knox Vault for advanced protection of sensitive data, ultrasonic in-display fingerprint scanning, facial recognition, and ultra-fast 5G and Wi-Fi 6E support. Enhanced stereo speakers with Dolby Atmos create immersive audio, making the device ideal for gaming, streaming, and professional multimedia experiences.

Description

With Samsung Galaxy S21 Series, you have the ability to record in 8K. Which means your videos are double the resolution of 4K video. Or use the 64MP camera for still shots that come out clear whether it’s day or night. Single Take AI transcends the usual restrictions of photo and video editing to capture life’s greatest moments in one single take. Samsung Galaxy S21 Series, made for the epic in every day.

Brand: Samsung


Operating System: Android 11.0


Ram Memory Installed Size: 12 GB


CPU Model: Snapdragon


CPU Speed: 2.84 GHz


Memory Storage Capacity: 128 GB


Screen Size: 6.8 Inches


Resolution: 1440 x 3200


Refresh Rate: 120


Model Name: Galaxy S21 Ultra 5G


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 Lithium Ion batteries required. (included)


Is Discontinued By Manufacturer: No


Date First Available: June 7, 2021


Manufacturer: Samsung Electronics


Memory Storage Capacity: 128 GB


Standing screen display size: 6.8 Inches


Ram Memory Installed Size: 12 GB


Battery Capacity: 5000 Milliamp Hours


Item Weight: 7.68 ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Mar 10

Yes, absolutely! You may return this product for a full refund within 90 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.

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Top Amazon Reviews

    • I thought they made a mistake at first!
I bought this as a refurbished phone, and the price was appropriate. However, I was pretty sure they had messed up and sent me a brand-new phone. This thing is literally perfect, without a scratch or blemish anywhere. It also came with a screen protector already applied which was nice. The only criticism I have at all is that the battery literally had 1% left when I turned it on to start setting it up. It died completely while I was adding my Google creds, so I had to charge it up. No biggie, as I got the wireless charging thing too. Great phone, stupid-fast and AMAZING screen. Looking forward to getting it exactly right. If they had fractions of stars I would give this a 4.9. ... show more
Reviewed in the United States on January 11, 2024 by Nunja Business
    • Buyer Beware
I do not recommend this. I don't usually take selfies, so it took me a few weeks before I noticed that there was damage to the front camera. (There were three black spots that showed up in the pictures. I'm not sure if there's something under the screen or if it was just damage.) Since it was over the time period allowed for refunds, I kept it since it didn't bother me too much. However, perhaps two weeks later, I noticed that the screen had started to lift in one corner. I've had a phone protector on it since I first turned it on. However, despite the phone protector being on, when I dropped the phone from a TWO FEET height, the phone cracked, starting from the lifted corner and it traveled down the side and middle of the screen. A week ago, the phone started having issues with charging (slow charging and it keeps starting and stopping). Now, the screen won't even turn on despite my phone being charged. I only had this phone for 9 months! I feel like I was scammed and ripped off. If I could go back, I wouldn't even waste/pay a penny for this phone. I've never had this experience with a phone. I never even had a phone's screen crack on me. I had my last phone for 6 or 7 YEARS (Galaxy 8+), and it was (and is) in better condition than this phone! I'm extremely disappointed in Amazon and this seller or whoever "refurbished" this phone. ... show more
Reviewed in the United States on July 31, 2025 by American Express
    • It's a definite YES
Love the phone. Can't tell its "used" I am happy with my purchase.
Reviewed in the United States on January 10, 2026 by NativeQueen
    • Worth it!!
Needed a phone, and upgraded to this one. Saved a good amount of money too. Was hesitant at first, but happy I went with this one. Absolutely no problems with the phone, everything works 100%. Has slight cosmetic wear, but thats to be expected with a refurbished item. 10/10 would buy another phone from here. ... show more
Reviewed in the United States on January 3, 2026 by Brandon Moon
    • Todo bien poe ahora.
Se recibió bien, sin daños aparentes, solo que la batería se agota muy rápido, dura solo unas horas. Veremos que tal funciona en los próximos días. También se entregó sin problemas en el tiempo señalado, que a pesar de ser importación fue muy rápido.
Reviewed in the United States on October 7, 2025 by Irene
    • Perfecto estado
El producto llegó en perfecto estado, no me ha dado ningún fallo hasta ahora.
Reviewed in the United States on March 1, 2026 by Angel Manuel Sánchez Acosta
    • Hardware issues and poor internal condition
Review Image by With buy this, it's just a book With buy this, it's just a book
Review Image by With buy this, it's just a book With buy this, it's just a book
Review Image by With buy this, it's just a book With buy this, it's just a book
Review Image by With buy this, it's just a book With buy this, it's just a book
Review Image by With buy this, it's just a book With buy this, it's just a book
Review Image by With buy this, it's just a book With buy this, it's just a book
Review Image by With buy this, it's just a book With buy this, it's just a book
I received two different units of this product and both had significant quality issues. There were visible dirt and fingerprint marks inside the camera lenses, which indicates a failure in quality control. Additionally, the camera hardware on one unit would consistently crash and stop working every time the app was opened. Given that this happened across multiple units, there is a concerning lack of consistency in the hardware's condition and functionality. ... show more
Reviewed in the United States on February 1, 2026 by With buy this, it's just a book With buy this, it's just a book
    • Love it
Excellent
Reviewed in the United States on February 22, 2026 by Pamella campbell

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