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At the end of the checkout process, you can book an O2 Guru to help you set up your phone.

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Existing Customers

Existing Customers

Apple Watch is available to O2 Pay Monthly customers with an iPhone 6s or newer (Apple Watch Series 4 also compatible with iPhone 6).

New Customers

New Customers

Before you can get your watch, you'll need to buy an iPhone 6s or newer (Apple Watch Series 4 also compatible with iPhone 6), with an O2 Pay Monthly tariff. Once you've done that, come back and you can add your watch.

Before you can get your watch, you'll need to buy an iPhone 6s or newer (Apple Watch Series 4 also compatible with iPhone 6), with an O2 Pay Monthly tariff. Once you've done that, come back and you can add your watch.

Features

s20 ultra 5g

108MP wide camera

s20 ultra

6.9 inch Infinity-O display

s20 ultra

Huge battery and Super Fast Charging

5G ready

5G ready device

See more features

Tech specs

Reviews

See reviews

Why O2?

Uswitch Best Network for Coverage Winner 2020
Stay connected

We’re the best network for coverage.

We’re thrilled to have won Best Network Coverage in the uSwitch Mobile Awards 2020, as voted for by the public. It’s the third year in a row that we’ve won the award. And we couldn’t be prouder, as we’re working hard to keep our customers connected.

Learn more

Priority
Priority

On O2, you’re the headline act.

Priority gives you invite-only access to tickets, perks and experiences. Sip coffees on the house. Stroll past queues at sold-out venues. And get first dibs on gig tickets. Head to Priority now – today’s invites are ready when you are.

Learn more

My O2
My O2

Manage your account 24/7.

Keep an eye on your bills and data usage and add a Bolt On if you need it. Get an upgrade, make a bill payment or top up your credit. You can do all this and more, wherever you are, with My O2. Sign in online or get the free My O2 app.

Learn more

Our top plan

FAQs

What is the screen size of the Samsung Galaxy S20 Ultra 5G?

The Samsung Galaxy S20 Ultra 5G has an endless 6.9-inch screen, Infinity-O Dynamic AMOLED display enforced with reinforced Gorilla Glass 6.


What are the specifications of the Samsung Galaxy S20 Ultra 5G?

The Samsung Galaxy S20 Ultra 5G has an IP68 rating, the highest possible level of dust and waterproofing. The Samsung Galaxy S20 Ultra 5G has a 6.9-inch screen, Infinity-O Dynamic AMOLED display enforced with Gorilla Glass 6 and weighs 220g. The Samsung Galaxy S20 Ultra 5G has an unbelievable Quad-Lens camera with an 108 MP Wide-Angle lens, 48 MP telephoto lens and a 12 MP Ultra-Wide lens and VGA ToF (Depth). It also comes with a 40 MP front facing camera. The Samsung Galaxy S20 Ultra 5G has a 5000 mAh battery. It has super-fast charging and wireless power share, allowing you to share your battery with anyone.


Where can I buy a Samsung Galaxy S20 Ultra case?

Right here at O2.

Browse our Samsung Galaxy S20 Ultra cases.


The legal bit

Custom plans

RPI: Each year your Airtime Plan will be adjusted by the Retail Price Index (RPI) rate of inflation. Find out more at o2.co.uk/prices.

Direct purchases only. Pay the cash price for your device or spread the cost over 3 to 36 months (excludes dongles). The cost of your Device will be the same however long you choose. A minimum upfront cost may apply. You need a monthly rolling Airtime Plan for the length of your Device Plan. Pay off your Device Plan at any time without charge. You can then keep on your Airtime Plan, upgrade, or leave.

UK calls/texts to standard UK landlines and mobiles and when roaming in our Europe Zone. Fair Usage policy applies. Special and out of bundle numbers chargeable. 4G phone required to access 4G. 4G available in selected areas.

Change your airtime tariff after 30 days and then once every billing month during your minimum contract period, choosing from a selected family of tariffs. Some tariff extras are only available on the starting tariff, are not transferable, and may be lost if you change to an ineligible tariff. Devices are subject to availability.

0% APR. Finance subject to status and credit checks, 18+, Direct Debit. Credit provided by Telefónica UK Ltd, SL1 4DX. Terms apply, see o2.co.uk/terms.

Get Unlimited Data

Each year your Airtime Plan will be adjusted on your April bill by the RPI rate of inflation announced in the preceding Feb. See o2.co.uk/prices.

Unlimited Data available on O2 Custom Plans on selected handsets and selected SIM Only tariffs. Fair use policy applies, personal and non-commercial usage only. If you regularly use 650GB of data per month or tether 12 or more devices we may consider this to be non permitted use and have the right to move you to a more suitable plan. EU roaming capped at 20GB per month, chargeable at 0.4p per MB afterwards. For full terms see www.o2.co.uk/terms.

75% of people said they got a better deal with O2

Source: O2 Retail Exits Survey in Merseyside Region, 27 February – 10 March 2020. Sample size and composition: 58 of 77 (75%) non-O2 customers agreeing with the survey statement: “O2 offered me a better deal than my current network”.

*Each year your Airtime Plan will be adjusted on your April bill by the RPI rate of inflation announced in the preceding Feb. See o2.co.uk/prices.