Unleash O2 5G
With the Galaxy A42 and O2 5G, you can download a full HD movie at mind-boggling speeds, say goodbye to lag when video calling mates, and share pics and videos in the blink of an eye. We now have 5G in parts of most major UK towns and cities, as well as lots of smaller towns and villages. To find out more about O2 5G, head to our 5G page.
Charge less, do more
Live your digital life to the full without worrying about running out of juice. A powerful 5,000mAh battery and superfast 15W charging means you can play, surf, share, stream and download to your heart’s content. Galaxy A42 5G also comes with 128GB storage, expandable up to 1TB with a MicroSD card (sold separately) -- enough space to store tons of pics and HD vids. Handy, considering the phone comes equipped with four brilliant cameras.
Give it your best shot
Galaxy A42 5G has four rear cameras to unleash the photographer in you. The 48MP main camera shoots in stunning 4K UHD, making every picture epic and every video vivid. The 20MP selfie camera with Smart Beauty helps you look your best from any angle, so snap a pic and watch the likes pile up. Clever AI will automatically switch to the 123° Ultrawide camera so no one’s left out. And if you want to go ultra-close, the Macro camera captures every detail and texture with impressive clarity. If that weren’t enough, a 5MP depth camera allows you to isolate the subject and create natural-looking Bokeh.
Beautiful from any angle
Sleek and eye-catching, Galaxy A42 5G is guaranteed to thrill – even before you turn it on. The layered pattern on the back gives it a premium, modern finish. But looks aren’t everything – the ergonomic design and rounded corners ensure a comfortable grip. Which is really handy, because you won’t want to put it down thanks to a stunning super AMOLED 6.6-inch Infinity-U display. With less bezel and more screen, it’s made for immersive entertainment. Whether you’re binging on your favourite shows or scrolling through social feeds, you simply won’t be able to take your eyes off it.
We're here for you whenever you need us.
So you can stay connected to the people that matter.
It’s good to be back.
From unique prize draws to unforgettable moments, Priority gives you invite-only access to gigs, perks and experiences.
Our top plan
- Does 5G work with Dual Sim? Collapsed link
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.
The legal bit
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.