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Samsung Galaxy S21 Ultra

Colour: Phantom Black 2 Colours Available Size: 256GB 2 Sizes Available
Out of Stock
With the Samsung Galaxy S21 Ultra you can take stunning, crystal clear pictures with its impressive 108MP triple-lens camera. TV & movies look breathtakingly stunning on the 6.8-inch Dynamic AMOLED display, and the 5,000mAh battery will keep you streaming all day. All our Samsung Galaxy S21 Ultra Deals are available on contract, SIM Free or upgrade with next day delivery a standard. ... Read More
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Our Best Sim Free Price

Our best Samsung Galaxy S21 Ultra SIM free deals

Everything you need to know about the Samsung Galaxy S21 Ultra

Samsung Galaxy S21 Ultra 5G Display

Samsung Galaxy S21 Ultra 5G Display

Level up with the Samsung Galaxy S21 Ultra 5G, featuring Samsung’s brightest ever Dynamic AMOLED 2x display. This dazzling 6.8-inch screen not only brings content to life with striking colour, it also boasts a 120Hz refresh rate to guarantee smooth and responsive scrolling.

The handset is sure to turn heads thanks to its premium metal frame and frosted haze finish, which makes fingerprints and smudges a thing of the past. With Gorilla Glass Victus shielding the handset, alongside an IP68 water resistance rating, you can also be sure of its durability.

Samsung Galaxy S21 Ultra 5G Camera

Samsung Galaxy S21 Ultra 5G Camera

Showcasing the most advanced camera system of the S21 series, the Samsung Galaxy S21 Ultra 5G features an extraordinary new 108MP sensor. Letting you capture incredible results, even at night, you can experience up to 100x zoom and 10x optical zoom, to pick out incredible detail.

There’s also the option to shoot ultra-high definition movies, with 8k video ready to record all the action. You can also say goodbye to endless photo retakes, by pulling your favourite high-res stills from your video recordings, using 8K Video Snap.

Samsung Galaxy S21 Ultra 5G Power

Samsung Galaxy S21 Ultra 5G Power

Make the most of everything 5G has to offer, with amazing power and reliability from the Samsung Galaxy S21 Ultra 5G. Boasting a high-performance Exynos 2100 5nm processor, it’s ready to keep up with your every task, from gaming marathons, to 5G multitasking.

The handset is ready to see you through a day of activity, courtesy of the massive 5000mAh battery on board. It has the ability to recharge in less time, using 25W SuperFast Charging or 15W Wireless Charging, as well as Wireless PowerShare to allow you to share charge with other devices.

Samsung Galaxy S21 Ultra 5G Features

Samsung Galaxy S21 Ultra 5G Features

The Samsung Galaxy S21 Ultra 5G is built for 5G, so you can experience every benefit of the next-generation network at your fingertips. It’s also the first S Series handset to be compatible with Samsung’s iconic S Pen (sold separately), offering both stylus and clicker functionality.

Whatever you use your handset for, you can expect all your files, content and downloads to be kept safe, with vault-like security from Samsung. The in-screen Ultrasonic Fingerprint Scanner lets you access your device in seconds, and can also be used to safely authorise Samsung Pay transactions.

Compare Samsung Galaxy S Range

Galaxy S21 Ultra 5G
Galaxy S21+ 5G
6.8-inch display 6.7-inch display
108MP triple camera 64MP triple camera
40MP selfie camera 10MP selfie camera
5000mAh battery 4800mAh battery
5G connectivity 5G connectivity
View Deals View Deals
Galaxy S21 5G
Galaxy S20 FE 5G
6.2-inch display 6.5-inch display
64MP multi lens camera 12MP triple camera
10MP selfie camera 32MP selfie camera
4000mAh battery 4500mAh battery
5G connectivity 5G connectivity
View Deals View Deals

Claim a pair of Samsung Galaxy Buds Pro and Galaxy SmartTag when purchasing Samsung S21, S21 Plus & S21 Ultra

Promoter: Samsung Electronics (UK) Limited. UK, Isle of Man, Channel Islands or Republic of Ireland residents (18+) only or registered companies in the same. Purchase a new Samsung Galaxy S21 5G, or S21 Ultra 5G from between 1/09/2021 – 30/09/2021 and claim a pair of Samsung Galaxy Buds Pro and Galaxy SmartTag. No cash alternative. Individual Participants must complete the online claim form in the Benefits section of the Samsung Members app pre-installed and company Participants must visit to upload proof of purchase and provide all other required information (Claim). All Participants must Claim between 0-60 days of purchase. Maximum 1 Claim per Promotion Product purchased (maximum 4 Claims per household) and a maximum of 250 Claims per company participant. See for full Promotion terms.

Product Reviews


9 Reviews

We want to give our customers real advice from real customers. Highlighting the good as well as the not so good points. Our customers are kind enough to take a few minutes out of their busy day to share their experience and opinions of their new smartphone, helping new customers make the right choice for them.

Verified Buyer

Well i was extremely happy with the delivery process, well done Mobiles UK, received my phone the next morning.

Only a Cable in the box and its not a USB at one end, looks like Samsung are cutting corners a 5$ plug would have helped me charge it, but i had to order a Plug and a USB cable.

Good phone ...but i have marked Value down by 1 star for Samsung not MobilesUk.

Verified Buyer

I bought the Phantom Black, beautiful phone. The 5g service in my area is pretty good and have been getting crazy speeds. Phone feels great, nice to use and the screen is crisp - camera is brilliant but processing not so refined. Phone is a bit on the heavy side too - takes a bit of getting used to.

Verified Buyer

In essence, this is without doubt, the most sophisticated and feature rich device, that I have owned.
The whole smart phone culture, has been enriched with this last addition.
I am solo happy I chose Galaxy S21 Ultra.

Verified Buyer

Great phone. Amazing camera and top notch phone. I love it. Shame the mains plug does not come with it but hey ho. Overall very happy with the phone.

Verified Buyer

Good phone but not happy as they removed memory card slot.

Verified Buyer

Great phone, no lag anywhere so far, great cameras

Verified Buyer

Its amazing. Worth the investment.

Verified Buyer

Verified Buyer