Best Samsung Galaxy S21 Ultra Deals in January 2025

What does the Samsung Galaxy S21 Ultra have to offer?

The short answer is pretty much everything you’d expect on a high-end smartphone. But the star of show is its quadruple lens camera that may be the best on the market.

It’s also got a 6.8-inch screen that’s among the biggest and brightest on any smartphone, as well as 5G support for faster downloads and smoother streaming.

Samsung Galaxy S21 Ultra display and design

The top-of-the-range S21 Ultra is also the largest, with a 6.8-inch display that’s among the biggest on any Galaxy S smartphone. Which makes it great for watching Netflix while you’re on the move.

And as you probably expect, the Dynamic AMOLED 2x display is the clearest and brightest of any of the S21 smartphones too.

Close inspection reveals it’s 30% brighter than the likes of the iPhone 12. So all your photos and mini movies look fantastic.

The screen is fashioned from Gorilla Glass, which makes tougher and more resistant to scratches than earlier Galaxy S models. And it’s equipped with an Eye Comfort Shield that minimises exposure to blue light to reduce eye strain.

Colour options are black, white, brown, grey and silver.

Samsung S Galaxy S21 Ultra S Pen

The S21 Ultra is the first-ever phone in the Galaxy S range that’s compatible with Samsung’s S Pen stylus.

Previously exclusive to Galaxy Note smartphones, the S Pen allows Galaxy S21 Ultra users to edit photos and videos, write and draw on the screen, take notes and sign documents.

It’s worth noting, though, that the S Pen is sold separately. And you’ll need to buy a special phone case to store it in too.

Samsung Galaxy S21 Ultra connectivity and processor

As with all Galaxy S21 phones, the Ultra is 5G-compatible. So, where 5G is available, you’ll be able to download content faster and enjoy smoother streaming.

Powering the S21 Ultra is a 5nm processor that’s billed as the ‘fastest chip ever’ in any Galaxy smartphone.

Samsung Galaxy S21 Ultra camera

Perhaps the standout feature of the S21 Ultra is its quadruple rear camera, which comprises wide and ultra-wide lenses (108-megapixels and 12-megapixels respectively) and two 10-megapixel telephoto lenses.

The 10-megapixel camera captures an incredible amount of detail, while the dual zoom system is sharper and more powerful than any previous Galaxy phone.

It’s also got a handy Night Mode, as well as a Studio-like Portrait Mode that’s augmented by AI that analyses your subject’s face and your shooting conditions to help you take better portraits.

The camera shoots 8K video to add a sheen of professionalism to your home videos too, and around the front there’s a 40-megapixel camera for selfies.

Samsung Galaxy S21 Ultra battery

At 5,000mAh, the S21 Ultra’s battery is one of the largest of any smartphones and it’s claimed will give the average user more than 24 hours of use between charges.

It’s also equipped for Super Fast Charging that will get you 50% charge in half an hour and a comparably speedy and handy Fast Wireless Charging mode. 

If you’re minded to, the S21 Ultra allows you to share your battery power with other phones that support wireless charging.

Samsung Galaxy S21 Ultra contract options

Whether you’d prefer to pick up the S21 Ultra with unlimited data or on a cheaper deal that gets you the most for your money, we can help you find what you’re looking for.

Samsung Galaxy S21 Ultra unlimited data deals

Wary of running out of data? You'll find our best Galaxy S21 Ultra contracts with unlimited data in the table above. 

Cheap Samsung Galaxy S21 Ultra deals

High-end phones like the S21 Ultra generally come with higher price tags. So it might be stretching it to call any S21 Ultra contracts ‘cheap’.

But because we’re in the business of saving you money, you’ll find a selection of our best value contracts in the table above.

Alternatives to Samsung’s Galaxy S21 Ultra

• Samsung Galaxy S21
• Samsung Galaxy S21 Plus
• Samsung Galaxy S20
• Samsung Galaxy S20 FE
• Samsung Galaxy S20 Plus
• iPhone 12 mini
• iPhone 12
• iPhone SE 2020

Is the Samsung Galaxy S21 Ultra waterproof?

Yes, it is. Bearing an IP68 rating, the S21 Ultra is water-resistant in up to 1.5m of water for up to half an hour.

Does the Samsung Galaxy S21 Ultra have wireless charging?

You can charge the S21 Ultra with a wireless charging pad (sold separately). It also supports wireless power sharing and has a fast-charge wireless mode too.

What are the best Samsung Galaxy S21 Ultra deals?

That’s not an easy question to answer. But we can say that best Galaxy S21 contract is the one that most closely meets your needs.

If you’re looking to keep costs down, look closely at S21 Ultra deals from Tesco Mobile and iD Mobile. But if you’re keen to make the most of its 5G connectivity, you might want to track down a contract from EE and BT Mobile, whose shared network is the UK’s widest ranging.

What headphones come with the Samsung Galaxy S21 Ultra?

Just like the iPhone 12 range, none of Samsung’s Galaxy S21 smartphones include free headphones in the box. This is for environmental reasons and to cut down on waste.

Can I upgrade to the Samsung Galaxy S21 Ultra?

If you’ve exceeded the minimum term of your existing phone contract, you’re free to upgrade and won’t incur any charges for doing so. The same goes if you’re signed up to an early-upgrade contract, such as O2 Refresh or Tesco Mobile’s Anytime Upgrade, as long as you’re within the upgrade window stipulated by your network.

What Samsung Galaxy S21 Ultra colours are available?

You can choose from black, white, brown, grey and silver colour options.

How long is the Samsung Galaxy S21 Ultra’s battery life?

Samsung claims the average user can expect over 24 hours battery life on a single, full charge.

How good is the Samsung Galaxy S21 Ultra’s camera?

Very, very good. A combination of four lenses and a dual zoom function makes it one of the most powerful cameraphones on the market. It also records in 8K and has an array of features such as AI assistance and a Night Mode.

Galaxy S21 Ultra 5G specs