Samsung Galaxy S20 Ultra (5G) Review UK 2026 – Still Worth Buying or Not?

Introduction

If you're searching for a premium Samsung smartphone without paying flagship prices, the Samsung Galaxy S20 Ultra (5G) is still one of the most interesting options available in the UK. Although it was originally launched as Samsung's most advanced smartphone, it continues to attract buyers looking for flagship performance, an outstanding display and a versatile camera system at a much lower cost.

Many UK customers are now choosing older flagship devices instead of buying brand-new mid-range phones. The Galaxy S20 Ultra offers premium hardware, 5G connectivity, a stunning Dynamic AMOLED 2X display, wireless charging and Samsung's famous camera technology. The biggest question is whether these features are still enough in 2026.

In this detailed review, we'll examine the phone's design, performance, camera quality, battery life, software support and overall value to help you decide whether the Samsung Galaxy S20 Ultra (5G) is still worth buying in the UK.

Samsung Galaxy S20 Ultra (5G) Specifications

Design and Build Quality

Even several years after its launch, the Samsung Galaxy S20 Ultra still looks and feels like a flagship smartphone. The combination of Gorilla Glass, an aluminium frame and premium construction gives the phone excellent durability. Although it is larger and heavier than many modern devices, the extra size allows room for a bigger battery and a more immersive display.

The phone also carries an IP68 rating, offering protection against water and dust. Buyers looking for a premium build without paying flagship prices will still appreciate its quality.

Display Performance

The 6.9-inch Dynamic AMOLED 2X display remains one of the strongest reasons to buy the Galaxy S20 Ultra in 2026. Samsung's display technology continues to deliver vibrant colours, deep blacks and exceptional brightness, making the phone ideal for streaming, gaming and everyday browsing.

The 120Hz refresh rate keeps scrolling smooth, while HDR10+ support enhances movies and video content on services like Netflix and YouTube. Even compared with many newer mid-range smartphones, the display remains highly competitive.

Performance in 2026

Powered by the Snapdragon 865 or Exynos 990 depending on the region, the Galaxy S20 Ultra still delivers reliable performance for everyday use. Apps such as WhatsApp, Microsoft Teams, Google Maps, Facebook, Instagram and Chrome run smoothly with minimal delays.

Multitasking is effortless thanks to generous RAM options, while casual and competitive mobile games remain playable. More demanding titles can still perform well, although lowering graphics settings may improve frame rates.

Camera Review

The Galaxy S20 Ultra introduced Samsung's famous 108MP camera, and it continues to capture detailed daylight photos. Colours are vibrant, dynamic range remains impressive and portrait shots benefit from accurate edge detection.

The ultra-wide camera is useful for landscapes and group photography, while the periscope telephoto lens still provides flexible zoom options. Samsung's advertised 100x Space Zoom is more of a marketing feature than a practical tool, as image quality drops significantly at maximum zoom levels.

Video recording is another highlight, with excellent 4K recording, reliable image stabilisation and strong colour reproduction.

Compared with today's flagship smartphones, low-light photography is where the Galaxy S20 Ultra begins to show its age. Newer Samsung devices offer better night photography, faster image processing and more consistent autofocus.

Battery Life

The 5,000mAh battery remains capable of lasting a full working day under moderate usage. Activities such as browsing, streaming, messaging and social media can comfortably be completed without frequent charging.

Battery performance will largely depend on the condition of the device if purchasing refurbished or used. Choosing a reputable UK retailer that tests battery health can significantly improve the ownership experience.

Wireless charging, reverse wireless charging and fast charging continue to add convenience even by modern standards.

Software and Security

Software support is now the Galaxy S20 Ultra's biggest weakness. The device no longer receives major Android version updates, making it less future-proof than Samsung's latest Galaxy smartphones.

Despite this limitation, popular applications continue to function normally, and the phone remains perfectly suitable for general daily use. Buyers who prioritise the latest security features or long-term software support may prefer newer Galaxy models.

Samsung Galaxy S20 Ultra vs Modern Mid-Range Phones

One of the biggest reasons buyers still consider the Galaxy S20 Ultra is its value. While newer mid-range smartphones offer longer software support, many still cannot match the Ultra's premium display, flagship camera hardware and overall build quality.

If your priority is premium hardware and multimedia performance, the Galaxy S20 Ultra remains a stronger option. However, users wanting the latest Android updates and improved AI features should consider newer Samsung models.

Buying Guide for UK Buyers

Before purchasing a Galaxy S20 Ultra in 2026, check the following:

• Verify the IMEI is clean.
• Inspect the AMOLED display for burn-in.
• Confirm battery health.
• Test autofocus and camera functions.
• Ensure the charging port operates correctly.
• Verify that the phone is unlocked if required.
• Purchase from a trusted UK retailer offering a warranty and returns policy.

Pros and Cons

Pros

• Premium flagship build quality
• Excellent Dynamic AMOLED 2X display
• Smooth 120Hz refresh rate
• Outstanding daylight photography
• Strong multimedia experience
• 5G connectivity
• Wireless and reverse wireless charging

Cons

• No further major Android updates
• Large and heavy design
• Older processor compared with modern flagships
• Night photography is behind newer Samsung phones
• Battery condition depends on previous usage if buying refurbished

Who Should Buy the Samsung Galaxy S20 Ultra?

The Samsung Galaxy S20 Ultra is ideal for UK buyers who want flagship hardware without paying flagship prices. It suits students, professionals, media enthusiasts and users who spend most of their time streaming videos, browsing the web, using social media and taking daytime photographs.

If software longevity is your highest priority, a newer Galaxy device may be a better investment.

Final Verdict

The Samsung Galaxy S20 Ultra (5G) remains one of the best-value older Samsung flagship smartphones available in the UK. Its premium build quality, outstanding AMOLED display, versatile camera system and smooth everyday performance continue to make it an attractive choice for buyers shopping on a budget.

Although software support has reached the end of its lifecycle, the overall user experience still feels premium. If you can find a well-maintained device from a trusted UK retailer at the right price, the Galaxy S20 Ultra remains a worthwhile purchase in 2026.

Frequently Asked Questions

Is the Samsung Galaxy S20 Ultra still worth buying in 2026?

Yes. It remains an excellent choice for buyers wanting flagship hardware, a premium display and solid camera performance at a lower price.

Does the Galaxy S20 Ultra support 5G?

Yes. The phone supports 5G connectivity, making it suitable for modern UK mobile networks.

Will the Galaxy S20 Ultra receive Android updates?

No. Samsung has ended major Android upgrades for this device, although most popular apps continue to work normally.

Is the Galaxy S20 Ultra good for gaming?

Yes. Games such as PUBG Mobile, Call of Duty Mobile and EA Sports FC Mobile run well, although the highest graphics settings may reduce performance.

Should I buy a refurbished Galaxy S20 Ultra?

A refurbished Galaxy S20 Ultra can offer excellent value, provided it comes from a trusted UK retailer with a warranty, verified battery health and a clean IMEI.