O2 offers a wide range of contract deals, including SIM only plans and pay monthly phone contracts, catering to different data and usage needs[1][2].
Key features of O2 SIM only contract deals:
- 12 month contract duration for most SIM only deals
- 5G enabled SIMs as standard (a 5G compatible phone is required for access)
- No 2025 price rise, but prices usually increase by £1.80 each April after that (until April 2026)
- Inclusive EU roaming on all new contracts
- O2 Priority app access for early tickets, rewards, offers, and competitions
- Typical price/data options:
- £8/month – 32GB of 5G data
- £8.50/month – 45GB of 5G data
- £10/month – 70GB of 5G data
- £12/month – 100GB of 5G data
- £14/month – 175GB of 5G data
- £15/month – 250GB of 5G data
All O2 SIM contracts generally include unlimited calls and texts. Average users can expect to need between 5-10GB of data per month, but heavy users can benefit from big data bundles at competitive rates[1].
O2 pay monthly phone contract highlights:
- Most pay monthly deals last 24 months, but some 12 and 36 month options are available
- Unlimited 5G data is widely offered
- Typical prices around £47-£57/month with an upfront cost (e.g. £29-£99), depending on device and plan
- EU roaming is standard, plus access to all O2 Priority benefits
- No setup fees, though some phones require an upfront payment
- Coverage: 99% 4G/3G UK coverage and fast-growing 5G presence
- Most O2 handsets are unlocked with pay monthly contracts
- 30-day cancellation window after signing up
O2’s contracts are widely recognised for reliability, strong customer service, and a rewards ecosystem. From January 2025, price changes in new contracts must be set in pounds and fully disclosed, as inflation-linked rises will be banned[1][2].