Galaxy S20 Ultra 5G128 GB•Grey

4.6/5(300 reviews)

£275.18

Save £824.81

Standard Delivery by 14 - 16 OctExpress Delivery by 12 Oct for £12.00

Restored professionally

Based on up to 100-points of inspection

The PhoneMart Promise

Based on up to 100-points of inspection

We measure each battery's health and capacity against strict standards, and replace any that don't make the grade, so you get power you can rely on all day.
The display is switched on and looked over closely for any blemishes, so there are no marks, dust spots or discolouration to spoil the view.
Where a charger is included, the cord and connectors are checked for wear, and the plug is confirmed to fit sockets.
Before it ships, every device gets a thorough professional clean and polish so it feels fresh in your hands.
Every lens is put to work, so we can confirm sharp photos, smooth video and reliable performance on video calls.
A full factory reset wipes the device clean, securely erasing all previous data and restoring the original settings.
We confirm the network status up front, so you know exactly whether the device is locked or unlocked before it arrives.
Cards are inserted to make sure the device reads SIM and memory cards correctly, and that every tray and slot works smoothly.
Each button is pressed to check it responds straight away and does exactly what it should, from volume to lock to power.
If any parts are fitted during refurbishment, they are tested for compatibility and held to the same standards as the originals.
We run the IMEI to confirm it is clean and never blacklisted, and that the device details match the manufacturer's records.
The moisture indicator inside the device is inspected to rule out any history of water or liquid damage.
Every port, including the headphone, USB and Ethernet connections, is checked to make sure it connects and works reliably.
Face and fingerprint unlock, along with any voice recognition, are tested to make sure they work quickly and accurately.
Positioning is checked for accurate GPS, so maps and location apps behave exactly as they should.
External sensors, such as proximity, brightness, laser measurement and heart rate, are checked for precise and responsive readings.
Screws, casing, frames and other mechanical parts are examined to confirm they are original or quality replacements, and any replacement has to match or beat industry standards.
We confirm that Wi-Fi and Bluetooth connect quickly and hold a stable signal.
Speakers and microphones are inspected and fine tuned so audio records and plays back clearly.
The flash and every indicator light are tested to confirm they light up and work correctly.
Any features that are specific to your device are checked against the same standards, so nothing gets missed.

Select the condition

Example image

Body

Almost no signs of useVerified partsBattery for daily use

Select the colour

Select the colour

Galaxy S20 Ultra 5G

Excellent
Standard battery
Grey
128 GB
Dual Physical SIM

£275.18

£1,099.99 newSave £824.81

14-day returns

Set up the return in just a few clicks in your PhoneMart account.

Send the device back within 14 days of receiving it. Return postage is paid by you unless the item is faulty, damaged or not what you ordered.

Get your cash back within 3 business days of the seller receiving the device.

Proudly refurbished by PhoneMart Privacy policy

Comes with

Compatible charging cable

Excellent-Standard battery-Grey-128 GB-Dual Physical SIM

£275.18

£1,099.99 newSave £824.81

£275.18

£1,099.99 newSave £824.81

Customer reviews for Galaxy S20 Ultra 5G

Overall rating

4.6/5

300 verified reviews

Rating details

Appearance: 4.6/5
Battery: 4.4/5
Delivery: 4.8/5

Reviews

Mohamed Aslam

Verified purchase

5/5

Reviewed 28/07/2026, United Kingdom.

It's very good. Thanks for the phone.

Galaxy S20 Ultra 5G 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 17/07/2026

Mic Eastwood

Verified purchase

5/5

Reviewed 22/07/2026, United Kingdom.

Very good service

Galaxy S20 Ultra 5GSee item

Purchased 03/07/2026

Nick Hall

Verified purchase

5/5

Reviewed 18/07/2026, United Kingdom.

This phone fits my needs perfectly. I liked the S20FE for its features and battery but didn't want the newest model, so I chose the S20 Ultra upgrade and it's exactly what I wanted. The screen resolution is very clear and the 12GB RAM is great since I use it a lot.

Galaxy S20 Ultra 5G 128GB Grey Unlocked | PhoneMartSee item

Condition GoodPurchased 02/07/2026

Rick Jones

Verified purchase

5/5

Reviewed 12/07/2026, United Kingdom.

It has been great so far. I transferred everything from my old phone without any problems. I'm really happy with this 'new' phone.

Galaxy S20 Ultra 5GSee item

Purchased 30/06/2026

Moses Kirk

Verified purchase

5/5

Reviewed 15/06/2026, United Kingdom.

All good so far

Galaxy S20 Ultra 5G 128GB White Unlocked | PhoneMartSee item

Condition GoodPurchased 29/05/2026

Hilary Davies

Verified purchase

5/5

Reviewed 20/05/2026, United Kingdom.

Buying was simple; I followed the steps after choosing the make and model. Communication was good with updates until it arrived quickly. The packaging was secure and protective. The phone looks spotless and I was surprised to see no marks. It works well but I wish the battery lasted longer.

Galaxy S20 Ultra 5G 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 04/05/2026

Zafar Nawaz

Verified purchase

5/5

Reviewed 16/05/2026, United Kingdom.

Really cool, it looks like new. Many thanks.

Galaxy S20 Ultra 5G 128GB Black Unlocked | PhoneMartSee item

Condition FairPurchased 30/04/2026

Christopher Wilson

Verified purchase

5/5

Reviewed 20/04/2026, United Kingdom.

Great service as always and a great phone, 10 out of 10.

Galaxy S20 Ultra 5G 128GB Black Unlocked | PhoneMartSee item

Condition GoodPurchased 31/03/2026

Michael Rowe

Verified purchase

5/5

Reviewed 31/03/2026, United Kingdom.

I'm really pleased with the phone. It was described as excellent and there isn't a single mark on it. It looks like new out of the box. Absolutely brilliant. Thanks PhoneMart, I will buy from you again for sure. Well done.

Galaxy S20 Ultra 5G 128GB Grey Unlocked | PhoneMartSee item

Condition PremiumPurchased 28/03/2026

Kanayo Owen

Verified purchase

5/5

Reviewed 28/02/2026, United Kingdom.

Good

Galaxy S20 Ultra 5G 128GB Grey Unlocked | PhoneMartSee item

Condition GoodPurchased 15/02/2026

Common questions about the Galaxy S20 Ultra 5G

Durability

Overall performance

Camera

Screen quality

Grey

Colour

128 GB

Storage

Dual Physical SIM

Sim

Quadruple (4x)

Camera type

Unlocked

Carrier compatibility

Compatible with latest update

USB-C

Connector

Foldable

40 megapixels

Front camera

You get a phone built for enjoying expansive, sharp visuals and detailed photography with the Galaxy S20 Ultra 5G released in 2020. Its 6.9-inch Dynamic AMOLED 2X screen makes watching videos and scrolling through apps a pleasure, with colours that stay vivid and resolution that keeps every image crisp.

The Galaxy S20 Ultra 5G combines a 108-megapixel main camera with a 40-megapixel front camera, so you capture moments in rich detail whether it is a wide landscape or a close-up selfie. Its 12 GB of RAM keeps your apps responsive and smooth, while 5G connectivity ensures your downloads and streaming happen quickly. The phone supports both physical SIM and eSIM, giving you flexible options for your mobile network.

Key features

Screen size: 6.9 inches Dynamic AMOLED 2X
Memory: 12 GB RAM for smooth multitasking
Main camera: 108 megapixels for high-detail shots
Front camera: 40 megapixels for sharp selfies
Mobile network: 5G for fast internet speeds
Connectivity: Unlocked with physical SIM and eSIM support

Who is this for?

The Galaxy S20 Ultra 5G is a solid match for photographers who want a versatile camera system capable of capturing vivid, high-resolution images. It also suits heavy app users who benefit from the 12 GB of RAM to keep multitasking fluid and efficient. If you need fast mobile data and flexible SIM options, this phone fits those needs well.

It's also a good pick for anyone looking to upgrade to a device with a large, immersive screen that enhances watching videos and browsing content. Whether you want a phone for work, creativity, or entertainment, the Galaxy S20 Ultra 5G handles these everyday tasks comfortably.

What you get and what to know

What you get	Good to know
Quadruple camera with 108MP main sensor	Android OS runs an established, familiar build
Unlocked connectivity works with any carrier	USB-C connector for charging and accessories
MicroSDXC slot for expandable storage	Weight is 222 grams, solid feel in hand

Why buy it refurbished?

Buying a refurbished Galaxy S20 Ultra 5G means you get a high-quality device that has passed up to a 100-point inspection by professionals. This includes checks on the screen, battery health, buttons, cameras, and connectivity features to ensure reliability.

Every device is factory reset and graded by cosmetic condition, with free delivery, a 14-day return policy, and a 24-month warranty included. Choosing refurbished also helps reduce electronic waste by extending the life of a device built to last.

ColourGrey

Storage128 GB

SimDual Physical SIM

Camera typeQuadruple (4x)

Carrier compatibilityUnlocked

Compatible with latest updateNo

ConnectorUSB-C

FoldableNo

Front camera40 megapixels

Main camera108 megapixels

Memory gb12 GB GB

Mobile network5G

OsAndroid

Resolution1440 x 3200

Sar body1.56

Sar head0.32

Screen size in6.9 inch

Screen typeDynamic AMOLED 2X

Sd card slotmicroSDXC

Sim cardPhysical SIM + eSIM

Weight222 g g

Year of release2020

Welcome to PhoneMart

The best prices for high-quality renewed goods by sellers we’ve checked and vetted. We don’t mind if you Google us.

Get to know us

24-month warranty
Free delivery on all items
14-day returns
Excellent customer support

Popular searches

Galaxy S20 Ultra 5G128 GB•Grey

Restored professionally

Select the condition

Select the condition

Select a battery option

Select a battery option

Select storage

Select storage

Select SIM type

Select SIM type

Select the colour

Select the colour

14-day returns

Comes with

You may also like

Customer reviews for Galaxy S20 Ultra 5G

Overall rating

Rating details

Reviews

Popular searches

Common questions about the Galaxy S20 Ultra 5G

Key features

Who is this for?

What you get and what to know

Why buy it refurbished?

Welcome to PhoneMart