Darn, it's out of stock
(for now)
Galaxy S20 Ultra 5G 512GB - Black - Unlocked

Galaxy S20 Ultra 5G 512GB - Black - Unlocked

is currently unavailable.

All devices are restored professionally based on a 25-point inspection

  • Buttons
  • SIM/memory card reader
  • Data deletion
  • Chargers/cables
  • Unlocked by previous owner
  • GPS/positioning system
  • Cameras
  • External sensors
  • Biometric sensors
  • Wi-Fi and Bluetooth
  • IMEI serial number
  • Water damage
  • Flash and indicator lights
  • Mics and speakers
  • Input and output ports
  • Phone carrier
  • Battery health
  • Mechanical parts
  • Parts compatibility
  • Screen
  • Other features specific to this device

Galaxy S20 Ultra 5G 512GB - Black - Unlocked's customer reviews

263 verified reviews in the last 24 months.

  • J

    Juliette S.

    Purchased on January 15, 2025

    Verified purchase

    Once again, Back Market has delivered a "like new" refurbished phone. The phone works flawless for now, and the delivery process was seamless. I'm so grateful for this company. Hopefully, they will never cease to exist.

    Item

    Galaxy S20 Ultra 5G 128GB - Black - Unlocked

    Condition

    Excellent

    Reviewed in the United States on January 29, 2025

  • J

    J T.

    Purchased on October 7, 2024

    Verified purchase

    Been very happy with this first purchase on back market. Arrived about 3 days earlier than the estimated delivery which was a nice surprise. Been using this refurbished phone (excellent condition) that released back in 2020 for about 2 weeks now and wow it's been in working fantastically. The battery works like it's new. All the buttons work as does the fingerprint scanner, no issues with the cameras. I have yet to find any issues and the 120hz motion smoothness is worth the sacrifice in resolution to keep it more in line with most current flagship phones. My only complaint is that there are minor superficial scratches on the screen from obvious prior use but are only noticeable when screen is off and actively looked for.

    Item

    Galaxy S20 Ultra 5G 128GB - Gray - Unlocked

    Condition

    Excellent

    Reviewed in the United States on October 18, 2024

  • R

    Robert P.

    Purchased on November 3, 2023

    Verified purchase

    I feel like i found a lifehack to finding quality electronics at a fair market price. The peace of mind knowing the device was refurbished by qualified provider and met BM quality standards provides peace of mind in purchasing any device. The device shipped and was surprised it was not brand new. Absolutely a great offer using Back Market. Thank you!

    Item

    Galaxy S20 Ultra 5G 128GB - Black - Unlocked

    Condition

    Excellent

    Reviewed in the United States on December 4, 2023

  • A

    Addison P.

    Purchased on June 17, 2025

    Verified purchase

    It was all i hoped it would be. Looked like new. Every function worked as it should.Be sure and put a protective case on it as soon as you receive it. Learned the hard that you don't put phone in your back pocket and set down. Broke the back glass day one...It's still an awesom phone. I will probably buy my next phone from Back Market.

    Item

    Galaxy S20 Ultra 5G 128GB - Gray - Unlocked

    Condition

    Excellent

    Reviewed in the United States on June 29, 2025

  • T

    Teresa W.

    Purchased on April 2, 2025

    Verified purchase

    I love this phone i think the color is awesome to but it almost hid the crack on the back from me, it was hard to see. I would definitely recommend Back Market to anyone wanting quality phones at a cheaper price.

    Item

    Galaxy S20 Ultra 5G 128GB - White - Unlocked

    Condition

    Excellent

    Reviewed in the United States on April 11, 2025

  • T

    Theresa A.

    Purchased on October 4, 2024

    Verified purchase

    My refurbished Samsung S20 work well. Thank you for helping me to save money by mot buying a new phone. Go Earth!

    Item

    Galaxy S20 Ultra 5G 128GB - Black - Unlocked

    Condition

    Fair

    Reviewed in the United States on November 7, 2024

  • C

    Christina Y.

    Purchased on February 24, 2025

    Verified purchase

    Small error in the initial order however they worked Fast, allowing me to get my phone only a few days late.As opposed to months period as for the phone itself it arrived exactly as described period I was totally aware that the phone I was getting would not get security updates after this year, But after a lot of research I discovered this phone would carry me until I had enough to upgrade to the next level. The phone works fantastic. I changed over from an iphone mini to the s twenty ultra. I have To say it has a much better camera than my iPhone. And I've been really happy so far with the customization abilit and ease of use. I highly recommend back market for your tech needs. The cost and the quality are just too good to pass up. I've never had a bad product and this is my fifth product ive bought from them.

    Item

    Galaxy S20 Ultra 5G 128GB - Black - Unlocked

    Condition

    Excellent

    Reviewed in the United States on March 17, 2025

See all 263 reviews

Reborn vs. brand new

Here’s what you help prevent on average by choosing a reborn smartphone over a brand new one.

171.1 lbs of CO2e

That's like driving an SUV from NYC to Chicago.

6.3 oz of e-waste

That’s around the weight of a baseball.

537.1 lbs of raw materials

That's like 20 dogs digging in your yard for a week.

20,341.2 gallons of water

That's like running a faucet for 3 days

Everything you ever wanted to know about the Galaxy S20 Ultra 5G 512GB - Black - Unlocked

  • BlackColor

  • 6.9Screen size (inches)

  • Galaxy S20 Ultra 5GModel

  • AndroidOS

  • 1440 x 3200Resolution

  • USB-CConnector

  • UnlockedCarrier compatibility

  • 512 GBStorage

  • 16 GBMemory

The Galaxy S20 Ultra 5G is a flagship-level smartphone from Samsung, offering high-end features suitable for users who need a powerful device for multimedia, gaming, or professional use. As a refurbished model, it provides a great balance of performance and value, even though it’s a few generations old now.

Key features:
  • Model: Galaxy S20 Ultra 5G
  • Storage capacity: 512GB
  • Display: 6.9-inch Dynamic AMOLED 2X, 120Hz refresh rate
  • Processor: Exynos 990 (Global) or Snapdragon 865 (USA)
  • Camera: Quad-camera system with a 108MP main sensor
  • Connectivity: 5G capable for fast network access
Who is this for?

The Galaxy S20 Ultra 5G is ideal for tech enthusiasts, content creators, or professionals who want a large, vibrant display and top-tier camera capabilities. It’s suitable for users who require extensive storage and fast connectivity for multimedia or work-related tasks.

Pros & Cons:
Pros Cons
Large, high-quality display with 120Hz refresh rate. Bulkier size may be less comfortable for one-handed use.
108MP main camera for detailed photos. Battery life may be limited under heavy usage.
5G connectivity for fast network speeds. Older hardware compared to the latest models.
Why refurbished?

Choosing a refurbished Galaxy S20 Ultra 5G allows you to access a premium device at a more accessible price point. Each device from Back Market undergoes rigorous testing and quality checks to ensure reliable performance. Learn more about our quality standards.

Galaxy S20 Ultra 5G 512GB - Black - Unlocked
ColorBlack
Screen size (inches)6.9
ModelGalaxy S20 Ultra 5G
OSAndroid
Resolution1440 x 3200
ConnectorUSB-C
Carrier compatibilityUnlocked
Storage512 GB
Memory16 GB
Screen typeDynamic AMOLED 2X
Network5G
Manufacturer Ref.SM-G988U1
Memory Card SlotmicroSDXC
Verizon compatibleYes
AT&T compatibleYes
T-Mobile compatibleYes
Last OS CompatibilityNo
FoldableNo
Front camera40 megapixels
SAR head0.94
SAR body0.95
SeriesSamsung Galaxy S
SIM cardPhysical SIM + eSIM
Retro techNo
Main camera108 megapixels
Color (official name)Cosmic Black
Release Year2020
Company nameSamsung Electronics
Company email addresssupport@samsung.com
Company postal addressSamsung House, 1000 Hillswood Drive, Chertsey, Surrey, KT16 0PS, UK
BrandSamsung
Weight8 oz

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