Galaxy S20 Ultra 5GBlack • 128 GB • Dual Physical SIM

(4,227 reviews)

£268.00

before trade-in

Save £952.00

Free delivery by 14 - 15 Aug

Express delivery by 13-14 Aug from £5.00

Restored professionally

Based on up to 100-points of inspection

Customer reviews for Galaxy S20 Ultra 5G

Overall rating

4,227 verified reviews

Rating details

Accessories
4/5
Appearance
4.4/5
Battery
4.1/5
Lens & Camera
4.4/5
Overall performance
4.2/5
Packaging
4.4/5
Shipping
4.5/5

Reviews

Rick J.
Verified purchase
Reviewed 28/06/2026, United Kingdom.
It's been brilliant so far. Everything has transferred across from my previous phone. I'm really pleased with this 'new' phone.
Galaxy S20 Ultra 5G 512GB - Black - Unlocked
Galaxy S20 Ultra 5G 512GB - Black - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
16/06/2026
Nick H.
Verified purchase
Reviewed 06/07/2026, United Kingdom.
Perfect for my needs. I loved the S20FE for its functionality and versatility in terms of SD card slot and battery life, and didn't want the newest phone so I opted for the "upgrade" and the S20 Ultra is faultless to a T. I especially love how the resolution is crystal clear and the 12GB ram!? I am a heavy user and this phone is perfect.
Galaxy S20 Ultra 5G 128GB - Grey - Unlocked
Galaxy S20 Ultra 5G 128GB - Grey - Unlocked
Condition
Premium
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
20/06/2026
Michael R.
Verified purchase
Reviewed 18/03/2026, United Kingdom.
Really well pleased with the phone, described as excellent and there is not a mark on it, it's like a brand new one out of the box. Absolutely fantastic... thank you Back Market, will always buy from you again. Well done.
Galaxy S20 Ultra 5G 128GB - Grey - Unlocked
Galaxy S20 Ultra 5G 128GB - Grey - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
15/03/2026
Hilary D.
Verified purchase
Reviewed 10/05/2026, United Kingdom.
Straightforward purchase, step by step through after choosing make and model. Good communication and updates until delivery swiftly. Well and protective packing. Phone immaculate, was amazed that no visible blemishes . Very pleased with function, just wish for better battery life.
Galaxy S20 Ultra 5G 128GB - Black - Unlocked
Galaxy S20 Ultra 5G 128GB - Black - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
24/04/2026
David C.
Verified purchase
Reviewed 08/02/2026, United Kingdom.
Phone is amazing, great photos, lovely condition, good battery life. Deliver was extra fast. I am 100 % pleased with the purchase.
Galaxy S20 Ultra 5G 128GB - Black - Unlocked
Galaxy S20 Ultra 5G 128GB - Black - Unlocked
Condition
Premium
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
27/01/2026
Raymond J.
Verified purchase
Reviewed 05/04/2026, United Kingdom.
The item arrived with in the allotted time period, but there was problems with it. Before I mention them I would like to say that Backmarket was shift to address the issues and arrange a replacement or refund. I could only make calls using a set of USB c head phones as no sound was heard from the speakers and on audio input with the built in Mike. I am waiting for conformation of a replacement unit which at the moment is being dealt with swiftly.
Galaxy S20 Ultra 5G 128GB - Black - Unlocked
Galaxy S20 Ultra 5G 128GB - Black - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
22/03/2026
Ray P.
Verified purchase
Reviewed 18/08/2024, United Kingdom.
hi ordered an s20 samsung galaxy as we wanted to retain the sd card option. It arrived promptly. However the phone was still locked to Verison. The customer help team contacted the seller and the issue was sorted quickly. great value combined with geat service. Thanks
Galaxy S20 Ultra 5G 128GB - Grey - Unlocked
Galaxy S20 Ultra 5G 128GB - Grey - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
29/07/2024

Everything you ever wanted to know about the Galaxy S20 Ultra 5G

Durability
Overall performance
Camera
Screen quality

Galaxy S20 Ultra 5GModel
7,6 cmWidth
2020Year of Release
Dual Physical SIMSIM card
1,56SAR body part
SamsungBrand
1440 x 3200Resolution
Dynamic AMOLED 2XScreen type
128 GBStorage

The Galaxy S20 Ultra 5G is a flagship smartphone that offers advanced features and high performance, making it a suitable choice for tech enthusiasts and professionals alike. Released in March 2020, it remains a powerful device with capabilities that still stand out in today's market.

Key features:

Display: 6.9-inch Dynamic AMOLED 2X, QHD+ resolution
Processor: Exynos 990 (International) / Snapdragon 865 (USA)
Camera: Quad rear cameras including a 108MP main sensor and 100x Space Zoom
Connectivity: 5G compatible for ultra-fast downloads and streaming
Operating System: Ships with Android 10, upgradable to later versions

Who is this for?

The Galaxy S20 Ultra 5G is ideal for photographers and videographers who require high-quality imaging capabilities, as well as gamers and heavy users who need a device that can handle demanding applications. Its large display and powerful performance make it suitable for entertainment and productivity tasks.

Pros & Cons:

Pros	Cons
Exceptional camera quality with versatile shooting options.	Large size may not be ideal for one-handed use.
Stunning display with vibrant colours and high refresh rate.	Pricey for some users compared to mid-range alternatives.

Why refurbished?

Choosing a refurbished Galaxy S20 Ultra 5G allows you to experience premium features while being environmentally conscious. Back Market's refurbished devices undergo thorough testing to ensure they meet high-quality standards. Learn more about our quality standards.

Model: Galaxy S20 Ultra 5G
Width: 7,6 cm
Year of Release: 2020
SIM card: Dual Physical SIM
SAR body part: 1,56
Brand: Samsung
Resolution: 1440 x 3200
Screen type: Dynamic AMOLED 2X
Storage: 128 GB
Front camera: 40 megapixels
Compatible with latest Update: No
Carrier compatibility: Unlocked
Weight: 220 g
OS: Android
SAR body: 1,557
SD Card Slot: microSDXC
Serie: Samsung Galaxy S
SAR head: 0,66
Manufacturer Ref: SM-G988B/DS
Depth: 0,88 cm
Screen size (in): 6.9
Memory (GB): 12 GB
Main camera: 108 megapixels
Foldable: No
Mobile network: 5G
Colour: Black
Colour (official name): Cosmic Black
Height: 16,69 cm

Choose location

Suggested searches

Popular searches

Galaxy S20 Ultra 5GBlack • 128 GB • Dual Physical SIM

Galaxy S20 Ultra 5GBlack • 128 GB • Dual Physical SIM

Restored professionally

Comes with

Often bought together

Customer reviews for Galaxy S20 Ultra 5G

Overall rating

Rating details

Reviews

Reviews

Rick J.

Nick H.

Michael R.

Hilary D.

David C.

Raymond J.

Ray P.

Popular searches

Everything you ever wanted to know about the Galaxy S20 Ultra 5G

Durability

Overall performance

Camera

Screen quality

Related articles

iPhone vs Samsung Galaxy: Which is best for you? | Back Market

Samsung Galaxy S24 series review: Is it still worth it in 2025? | Back Market

Samsung Galaxy S23 Ultra review (2025) | Back Market

Samsung Galaxy S25 Ultra vs S24 Ultra: is it worth the upgrade? | Back Market

Samsung Galaxy S25 series colours: Every shade in the lineup | Back Market

How to factory reset a Samsung phone | Back Market

Samsung Galaxy S26 review | Back Market

Welcome to Back Market