Every handset deal on O2 we can find in the UK, updated daily and ranked by total cost across the term. Whether you're after a flagship on a 36-month O2 Refresh plan, a SIM-free phone you'll pair with an O2 airtime SIM, or an upgrade on your existing line, this page compares O2 contracts from O2 direct, Carphone Warehouse, Mobiles.co.uk, Affordable Mobiles and the rest of the UK reseller market.
Most popular on O2 right now: the Apple iPhone 17 and 17 Pro, the Samsung Galaxy S26 and S26 Ultra, and the Google Pixel 10 - all on 24 or 36-month O2 Refresh deals with separate handset and airtime payments, plus O2 Priority and Volt benefits bundled in.
Cheapest iPhone deals on O2 start from around £25/month and Galaxy S26 deals from £29/month at the time of writing. Use the filters above to set your budget, contract length, data and upfront cost.
What makes an O2 phone deal worth taking?
O2 sells handsets differently from its rivals, and understanding how before you compare prices is the single biggest thing you can do to avoid overpaying. Three details matter: O2 Refresh, the perks bundle, and the airtime plan.
O2 Refresh splits your contract into two halves. The Device Plan covers the phone as interest-free credit (24 or 36 months) and the Airtime Plan covers calls, texts and data. Once the handset is paid off the device half drops away and you only pay for airtime, or upgrade. Most rivals bundle the two into a single figure, so a £45 EE deal and a £45 O2 Refresh deal are not directly comparable - always compare on total cost across the term plus upfront.
Contract length on O2 typically runs 24 or 36 months. The 36-month plans bring the monthly handset cost down significantly but lock you in longer. O2 Switch Up (see FAQ) lets Refresh customers upgrade after 12 months on selected plans, softening the long-tie risk.
Bundled perks are the main reason flagship deals on O2 stay competitive even when the headline price isn't the absolute cheapest. O2 Priority gives 48-hour early access to tickets at the O2 Arena, BST Hyde Park and most AEG and Live Nation venues, plus a free weekly drink at Caffè Nero and rotating partner freebies. If you go to two or three gigs a year, the priority ticket window alone often justifies a small monthly premium.
Volt is the loyalty stack with Virgin Media. If your home broadband is with Virgin Media O2, your mobile plan gets doubled data (or extra EU roaming if already unlimited), a free Disney+ or Netflix subscription depending on the tier, and a speed boost on the broadband. Volt is automatic once both services share an account and doesn't change your monthly bill.
5G coverage on O2 reaches over 50% of the UK population in 2026, including every major city and most large towns. EE still leads the big four on raw 5G footprint with Vodafone catching up, but in cities O2's 5G is consistently fast. Check the postcode coverage checker first if you live rurally. 4G reaches 99% of the UK population.
EU roaming is included on most O2 plans up to a 25GB fair-use cap (35GB on Volt), and you can change your airtime plan mid-contract without resetting the Device Plan. Ready to compare? Filter by handset, monthly budget or upfront cost above.