Galaxy S20 5G128 GB•Grey

4.7/5(963 reviews)

£171.35

Save £837.65

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.

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Body

Light signs of useVerified partsBattery for daily use

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Galaxy S20 5G

Good
Standard battery
Grey
128 GB
Physical SIM + eSIM

£171.35

£1,009.00 newSave £837.65

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

Good-Standard battery-Grey-128 GB-Physical SIM + eSIM

£171.35

£1,009.00 newSave £837.65

£171.35

£1,009.00 newSave £837.65

Customer reviews for Galaxy S20 5G

Overall rating

4.7/5

963 verified reviews

Rating details

Appearance: 4.7/5
Battery: 4.4/5
Delivery: 4.8/5

Reviews

Stephen Phillips

Verified purchase

5/5

Reviewed 30/08/2026, United Kingdom.

I bought this for my girlfriend and she loves it.

Galaxy S20 5G 128GB Blue Unlocked | PhoneMartSee item

Condition ExcellentPurchased 19/08/2026

Maggie Clarke

Verified purchase

5/5

Reviewed 29/08/2026, United Kingdom.

The item was just as expected, and installing it and transferring my apps was simple.

Galaxy S20 5G 128GB Pink Unlocked | PhoneMartSee item

Condition ExcellentPurchased 20/08/2026

Barry Walker

Verified purchase

5/5

Reviewed 26/08/2026, United Kingdom.

class phone

Galaxy S20 5G 128GB Grey Unlocked | PhoneMartSee item

Condition ExcellentPurchased 17/08/2026

Martin Parker

Verified purchase

5/5

Reviewed 19/08/2026, United Kingdom.

I have bought many phones from PhoneMart and they are always good quality. This one is the same; I can't say anything bad about it.

Galaxy S20 5G 128GB Grey Unlocked | PhoneMartSee item

Condition GoodPurchased 08/08/2026

Amanda Dean

Verified purchase

5/5

Reviewed 14/08/2026, United Kingdom.

So far, the phone seems to work fine. I still have a few updates to install.

Galaxy S20 5GSee item

Purchased 03/08/2026

Helal Alexander

Verified purchase

5/5

Reviewed 13/08/2026, United Kingdom.

Galaxy S20 5G 128GB Grey Unlocked | PhoneMartSee item

Condition GoodPurchased 04/08/2026

Tony Powell

Verified purchase

5/5

Reviewed 02/08/2026, United Kingdom.

It is not the newest model but it was a perfect upgrade from my S10. The phone was in perfect condition and worked great right out of the box.

Galaxy S20 5G 128GB Grey Unlocked | PhoneMartSee item

Condition GoodPurchased 23/07/2026

Agi Arnold

Verified purchase

5/5

Reviewed 28/07/2026, United Kingdom.

All I can say is thanks.

Galaxy S20 5G 128GB Blue Unlocked | PhoneMartSee item

Condition ExcellentPurchased 18/07/2026

Ted Edwards

Verified purchase

5/5

Reviewed 28/07/2026, United Kingdom.

As promised

Galaxy S20 5G 128GB Grey Unlocked | PhoneMartSee item

Condition GoodPurchased 20/07/2026

Andrew Reynolds

Verified purchase

5/5

Reviewed 26/07/2026, United Kingdom.

Galaxy S20 5G 128GB Grey Unlocked | PhoneMartSee item

Condition GoodPurchased 24/06/2026

Common questions about the Galaxy S20 5G

Durability

Overall performance

Camera

Screen quality

Grey

Colour

128 GB

Storage

Physical SIM + eSIM

Sim

Quadruple (4x)

Camera type

Unlocked

Carrier compatibility

Compatible with latest update

USB-C

Connector

0,79 cm

Depth

Foldable

The Galaxy S20 5G brings high-speed 5G connectivity to your everyday mobile experience. With its 6.2-inch Dynamic AMOLED 2X screen, you get bright, sharp visuals that make browsing, streaming, and gaming more engaging. This phone fits comfortably in your hand and your daily routine with its slim 0.79 cm depth and light 163 g weight.

The Galaxy S20 5G from 2020 is built to handle demanding apps and multitasking thanks to its 12 GB of RAM. The unlocked design with dual physical SIM slots gives you the freedom to manage work and personal lines on one device. A microSDXC card slot lets you add extra storage as your needs grow.

Key features

Screen size: 6.2 inches Dynamic AMOLED 2X
Memory: 12 GB RAM for smooth multitasking
Camera: Quadruple camera system for varied shots
Mobile network: 5G unlocked for fast internet
Sim card: Dual Physical SIM for flexible use
Storage expansion: microSDXC slot available

Who is this for?

The Galaxy S20 5G fits well for professionals who juggle multiple apps and need reliable speed throughout the day. Its dual SIM support is valuable for anyone managing work and personal numbers on one phone. Photography enthusiasts will appreciate the quadruple camera setup that covers a range of shooting scenarios.

It's also suitable for users who want to experience 5G connectivity and a vivid screen without switching to newer models. If you want a device that balances performance with a comfortable size, this phone works well in everyday life.

What you get and what to know

What you get	Good to know
Quadruple camera for diverse photo options	Android OS without the latest update
USB-C connector for charging and data	Dual Physical SIM for two active lines
MicroSDXC slot to expand storage	Dimensions 15.17 cm by 6.91 cm by 0.79 cm

Why buy it refurbished?

Choosing a refurbished Galaxy S20 5G from PhoneMart means getting a thoroughly inspected device that meets high standards for screen, battery, cameras, and connectivity. Each phone is factory reset and graded for cosmetic condition while ensuring full functionality.

Buying refurbished also supports sustainability by extending the life of quality electronics, reducing waste and the need for new manufacturing. You get a premium smartphone experience with added environmental value and competitive pricing.

ColourGrey

Storage128 GB

SimPhysical SIM + eSIM

Camera typeQuadruple (4x)

Carrier compatibilityUnlocked

Compatible with latest updateNo

ConnectorUSB-C

Depth0,79 cm

FoldableNo

Front camera10 megapixels

Height15,17 cm

Main camera12 megapixels

Memory gb12 GB GB

Mobile network5G

OsAndroid

Resolution1440 x 3200

Sar body1,525

Sar head0,382

Screen size in6.2 inch

Screen typeDynamic AMOLED 2X

Sd card slotmicroSDXC

Sim cardDual Physical SIM

Weight163 g g

Width6,91 cm

Year of release2020

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Galaxy S20 5G128 GB•Grey

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