Samsung Galaxy S20 Ultra 256GB deals

The Samsung Galaxy S20 Ultra is in our catalog but no UK retailer currently stocks it.

Expert reviews 3.8 (5)

Expert Reviews 4 T3 4 Tom's Guide 4 Tech Advisor 3.5 TechRadar 3.5

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All

Black

Grey

White

Storage

All

128GB

256GB

Buyers who want the largest possible 120Hz screen and long-range zoom on an older flagship, and who accept that security updates have ended.

6.9-inch 120Hz Dynamic AMOLED 2X, still one of the biggest and smoothest phone screens available
108MP main sensor and 48MP periscope with 100x Space Zoom for extreme reach
5,000mAh battery with 45W wired charging, the fastest Samsung offered at the time

Samsung Galaxy S20 Ultra Voucher Codes & Offers (1)

£5 off

£5 off any Samsung phone at Mozillion

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Take £5 off any Samsung phone at Mozillion, code valid on pay monthly phone contracts and SIM free phones.

Terms: Valid on SIM free phones and pay monthly phone contracts.

SAMSUNG5

Use offer

Ends 31 Aug 2026

Samsung Galaxy S20 Ultra SIM Free (1 deals)

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Galaxy S20 Ultra 256GB (Grey)

SIM Free A handset that is purchased without a SIM card.

£1.00

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£0.00

Upfront Cost:

£1.00

Samsung Galaxy S20 Ultra Deals - July 2026

11 refurbished deals available - SIM-free from £1.00.

About the Samsung Galaxy S20 Ultra

The Galaxy S20 Ultra was Samsung at its most ambitious, and it is a phone best understood as a first attempt rather than a finished one. It introduced the 108MP main sensor and the 100x Space Zoom marketing that Samsung still leans on today, but the early version of that hardware had well-documented autofocus problems at launch that took several firmware updates to settle down. What has aged well is everything around the camera: a 6.9-inch 120Hz AMOLED that is still one of the largest and brightest screens you will find on a phone this old, a 5,000mAh battery, 45W wired charging and 12GB or 16GB of RAM. It is also heavy at 220g and physically enormous, with a camera bump that stops it sitting flat. In the UK it runs the Exynos 990 chip, which was noticeably less efficient than the Snapdragon version sold elsewhere. Samsung's software support window has now closed, so it no longer receives Android upgrades or security patches, which is the main reason to think twice.

Expert Rating

3.8

(5 reviews)

Samsung Galaxy S20 Ultra vs Samsung Galaxy S20+ - Key Differences

Feature	Samsung Galaxy S20 Ultra	Samsung Galaxy S20+
Display	6.9-inch Dynamic AMOLED 2X, 3200x1440, 120Hz	6.7-inch Dynamic AMOLED 2X, 3200x1440, 120Hz
Battery	5,000 mAh, 45W wired	4,500 mAh, 25W wired
Camera	108MP main, 12MP ultrawide, 48MP periscope, ToF	12MP main, 12MP ultrawide, 64MP telephoto, ToF
Front camera	40MP	10MP
Weight	220 g	186 g
Dimensions	166.9 x 76.0 x 8.8 mm	161.9 x 73.7 x 7.8 mm
RAM options	12GB or 16GB	8GB or 12GB
SIM-free price	Not available	From £159.00

Frequently asked questions

Is the Samsung Galaxy S20 Ultra worth buying in 2026?

It is a hard sell as a main phone now. The screen, battery and zoom range still feel capable, but Samsung has ended both Android upgrades and security updates for the S20 series, and the UK Exynos 990 model was never the most efficient performer. Consider it only if you want a big 120Hz screen and long zoom for light use.

How good is the Samsung Galaxy S20 Ultra camera?

It is capable but inconsistent by modern standards. The 108MP main sensor produces detailed daylight shots and the 48MP periscope gives genuine long-range reach with 100x Space Zoom, but autofocus was unreliable at launch and only partly fixed by firmware. The 40MP front camera is still one of the highest-resolution selfie cameras Samsung has shipped.

How long does the Samsung Galaxy S20 Ultra get software updates?

Samsung promised three Android version upgrades and four years of security updates for the S20 series, taking it to Android 13 with One UI 5. That window has now expired, so the S20 Ultra no longer receives new Android versions or security patches. Anyone buying one should be comfortable with an unpatched device.

Does the Samsung Galaxy S20 Ultra have a headphone jack and microSD slot?

There is no 3.5mm headphone jack, so you will need USB-C or Bluetooth headphones. It does keep a microSD slot supporting cards up to 1TB, which is something Samsung dropped from the S21 series onwards and remains one of the S20 Ultra's practical advantages.

What is the difference between the Samsung Galaxy S20 Ultra and the Galaxy S20+?

The Ultra is bigger in every dimension, with a 6.9-inch display against the S20+ 6.7-inch panel, a 5,000mAh battery against 4,500mAh, and 45W charging against 25W. Its camera is the bigger leap, swapping the S20+ 12MP main and 3x hybrid zoom for a 108MP main sensor and a 48MP periscope reaching 100x. The trade-off is weight, at 220g versus 186g.

Compare Samsung Galaxy S20+ deals

Is the Samsung Galaxy S20 Ultra too big?

For many people, yes. At 166.9 x 76mm and 220g it is one of the largest mainstream phones Samsung has made, and the camera housing adds noticeable thickness. One-handed use is difficult and it is a tight fit in smaller pockets, so try to handle one before committing.

Samsung Galaxy S20 Ultra Specifications

General

Dimensions

166.9 x 76 x 8.8

Weight

220 g

SIM

Nano-SIM + eSIM

Operating System

Android 10, up to Android 13, One UI 5

Colours

Black White Grey

Radio

FM radio (USA & Canada only)

Body

Cosmic Grey, Cosmic Black, Cloud White

Camera

Primary Camera Megapixels

108

Primary Camera Video

8K@24fs, 4K@30/60fs, 1080@30/60/240fs, 720@960fs, HDR10+, stereo sound rec., gyro-EIS & OIS

Third Camera

108 , f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, OIS 48 , f/3.5, 103mm (periscope telephoto), 1/2.0", 0.8µm, PDAF, OIS, 4x optical zoom, 10x hybrid zoom 12 , f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video 0.3 , TOF 3D, f/1.0, (depth)

Selfie Camera Features

HDR

Primary Selfie Camera

40 , f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF

Video Resolution

4320

Selfie Video Resolution

4K@30/60fs, 1080@30fs

Display

Type

Dynamic AMOLED 2X, 120Hz, HDR10+, 1400 nits (peak)

Display Size

6.9

Display Resolution

1440 x 3200 pixels, 20:9 ratio (~511 ppi density)

Display Protection

Corning Gorilla Glass 6

CPU & Memory

Chipset

Exynos 990

GPU

Mali-G77 MP11

CPU

Octa-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55)

Memory Card Slot

microSDXC (uses shared SIM slot)

Internal Storage

128GB 256GB

Sound

Loudspeaker

Yes, with stereo speakers

3.5mm Jack

Connectivity & Data

2G

GSM 850 / 900 / 1800 / 1900

3G

HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100

4G

1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66

Network Speed

HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps

Network Technology

GSM / CDMA / HSPA / EVDO / LTE

Wi-Fi

Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct

Bluetooth

5.0, A2DP, LE

USB

USB Type-C 3.2, OTG

NFC

Yes

GPS

GPS, GLONASS, BDS, GALILEO

Battery

5000

Charging

45W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless

Other

Sensors

Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer