Skip to main content

Check for stock in your nearest store?

See when you can collect this device from your nearest store.


Stores nearest to ""

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

You'll need to confirm your click and collect selection at check-out.

Stores nearest to

Already with O2?

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.

6.1 inch, 21:9 FHD+ display

6.1 inch, 21:9 FHD+ display

Professional camera technology

Professional camera technology

Sony Xperia 5 II 5G

Compact and powerful

Built for gaming

Built for gaming

See more features

Tech specs

Reviews

Overall rating

See all reviews

Reviews

Why O2

Why O2?

Robot on a mountain
A network you can trust

We're here for you whenever you need us.

So you can stay connected to the people that matter.

Find out more

Priority
Priority

On O2, you’re the headline act.

Priority gives you invite-only access to tickets, perks and experiences.

Learn more

My O2
My O2

Manage your account 24/7.

View your bills, see your data usage, check your upgrade options and more. Just sign in to My O2 online, or get the app for free.

Learn more

FAQs

FAQs

Does 5G work with Dual Sim?

When using two connections in Dual Sim mode, 5G data isn't supported on either connection, so they’ll both use 4G. If you’re using a single sim only (or have only one sim active) and it’s a 5G one, then you can access 5G wherever it’s available on the O2 network.


Custom plans

RPI: Each year your Airtime Plan will be increased by the Retail Price Index (RPI) rate of inflation announced in February plus 3.9%. If RPI is negative, we’ll only apply the 3.9%. You’ll see this increase on your April 2022 bill onwards. 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 the Device Plan. Pay off your Device Plan at any time without charge. You can then keep on your Airtime Plan, upgrade or leave. If your Airtime Plan ends for any reason (including for switching to another operator) you will need to pay your Device Plan in full.

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

RPI: Each year your Airtime Plan will be increased by the Retail Price Index (RPI) rate of inflation announced in February plus 3.9%. If RPI is negative, we’ll only apply the 3.9%. You’ll see this increase on your April 2022 bill onwards. 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 25GB per month, chargeable at £3.50 per GB afterwards. For full terms see www.o2.co.uk/terms.

Claim a gaming bundle worth £222

Promoter: Sony Europe B.V. (of Surrey, KT13 OXW, United Kingdom). This Offer applies to Consumer Pay Monthly customers only who have purchased an Xperia™ 5 II on any consumer pay monthly tariff from Telefonica UK Limited’s (“O2”) sales channels which include www.o2.co.uk or through O2 telesales on and between 01/04/21 and 05/05/21. Excludes retail purchases. Participating customers will be entitled to claim 18360 Call of Duty: Mobile CP points + DUALSHOCK4 + Game Mount, when you purchase Xperia 5 II. Open to customers aged 18 or over. Purchase and Internet access required. Opening date for claims is 01/04/21. Closing date for receipt of claims is midnight 30/06/21. To claim, visit www.xperiarewards.co.uk/ codmobileofferwith your IMEI number, proof of purchase in the form of email or online confirmation (screen shot acceptable). Limited to one claim per device purchased. Customers who return their mobile device are not eligible. Keep order confirmation. For full terms and conditions visit www.xperiarewards.co.uk/codmobileoffer. Icons and images are simulated and are for illustrative purposes only. Sony is a trademark or registered trademark of Sony Corporation. ©2020 Sony Europe B.V. For full terms and conditions visit www.sony.co.uk/promo/mobile. Icons and images are simulated and are for illustrative purposes only. Sony is a trademark or registered trademark of Sony Corporation. ©2020 Sony Europe B.V.

*Each year your Airtime Plan will be increased by the Retail Price Index (RPI) rate of inflation announced in February plus 3.9%. If RPI is negative, we’ll only apply the 3.9%. You’ll see this increase on your April 2022 bill onwards. See o2.co.uk/prices.