EE, O2, Vodafone, Three UK SIM Only Plans 2026 - Price, Data & Unlimited Plans
📱 UK Plan Finder - EE, O2, Vodafone, Three
Enter your UK mobile number, select your network and compare popular SIM-only plans in the UK. Most UK SIM-only plans include unlimited UK calls and texts - the main difference is data allowance, contract length (30-day rolling vs 12/24 months) and roaming. Some business listings show prices ex-VAT, so always check the consumer checkout price.
To confirm live details, every plan has a Check on Official Site button - that is the final price and terms.
🔒 Your number is NOT saved or sent to any server. It is only checked on this page.
Note: Many budget UK brands run on these four networks (for example, giffgaff on O2 and Voxi on Vodafone), so coverage is often the same as the host network, but price and roaming can differ.
🎁 Offers - How to Check Correctly
❓ Frequently Asked Questions (FAQ)
Q1. What is the difference between 30-day rolling and a 12/24-month SIM-only plan?
30-day rolling plans can usually be cancelled with 30 days notice, while 12/24-month plans are cheaper per month but lock you in for that term. Check the contract length before signing.
Q2. Do UK plans include EU roaming?
It depends on the network and plan. Some plans include EU roaming up to a fair-use limit, others charge a daily pass. Check roaming terms if you travel to Europe.
Q3. Are sale prices the same as standard prices?
No. Many UK sale prices are time-limited offers. The standard price after the offer, and any annual price rise, can be higher - check both.
⚠️ Disclaimer
How to Choose a SIM Only Plan in the UK
Choosing a SIM-only plan in the UK is simpler than choosing a handset contract, because you keep your phone and only pay for the SIM. Most UK SIM-only plans include unlimited UK calls and texts, so the real choice is data allowance, contract length and roaming. A 30-day rolling plan is flexible and can usually be cancelled with 30 days notice, while a 12 or 24-month plan is often cheaper per month but locks you in. If you are not sure about coverage or you may move soon, a 30-day rolling plan is usually the safer first choice.
Price alone is not the whole story. Check whether the price is a sale price or a standard price, whether there is an annual price rise, and whether EU roaming is included or charged as a daily pass. If you travel to Europe, a plan with EU roaming up to a fair-use limit can save more than a slightly cheaper plan with no roaming. If you mostly use Wi-Fi, a 10GB plan can be enough. If you stream video on mobile data, a 50GB or unlimited plan will be more comfortable.
EE Plans UK
EE is often chosen for network reliability and 5G experience in the UK. In an April 2026 comparison table, EE SIM-only plans were listed at £14 per month for 10GB, £22 for 50GB and £28 for unlimited data, all with unlimited UK calls and texts. EE also has a tourist/prepaid listing at £9 for 20GB with 500 minutes and unlimited texts for 30 days as cited. EE is a good choice if coverage and 5G performance matter more than the lowest price, but check the consumer checkout price, because some business listings show prices ex-VAT.
O2 Plans UK
O2 is often chosen as a middle ground between price and reliability, with EU roaming up to a fair-use limit on many plans. In the same April 2026 table, O2 was listed at £12 per month for 10GB, £18 for 50GB and £25 for unlimited data. O2 also has a tourist/prepaid listing at £10 for 10GB with unlimited minutes and texts for 30 days as cited. O2 is also the host network for giffgaff, so if O2 coverage is good in your area, a budget brand on O2 can sometimes be cheaper for the same coverage.
Vodafone Plans UK
Vodafone is often chosen for international roaming options and for its budget brand Voxi, which runs on Vodafone's network. In the April 2026 table, Vodafone was listed at £12 per month for 10GB, £18 for 50GB and £24 for unlimited data. Its tourist/prepaid listing was cited at £10 for 27GB with unlimited minutes and texts for 30 days. Vodafone roaming passes and fair-use limits vary by plan, so if you travel outside Europe, check roaming charges before you rely on your UK allowance abroad.
Three Plans UK
Three was the cheapest network in the April 2026 comparison table, listed at £10 per month for 10GB, £14 for 50GB and £18 for unlimited data, all with unlimited UK calls and texts. Its tourist/prepaid listing was cited at £10 for 60GB with unlimited minutes and texts for 30 days, which was the best value in that listing. Three is a strong choice for urban users with good Three 5G coverage, but the saving is worthless if you have no signal at home or work, so check coverage in your main locations before choosing Three on price alone.
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