2 sellers publishing a SIM only contracts price
What SIM only contracts cost in the UK, from published seller prices
A SIM only contract is a term, and the term is the product. Two sellers in this record publish one on the page we read: Vodafone at £23 a month for unlimited data on a 24 month plan, and Lycamobile, which prints 12 and 24 month plans beside its 30 day ladder. The rest of the record is rolling monthly, which is a different thing being sold at a similar number.
- median published unlimited data SIM, per month
- £17.75
- published unlimited SIM prices across the sellers read
- £12.50 to £23
- sellers with an evidenced SIM only contracts price
- 2
Sellers publishing a SIM only contracts price
| Seller | Unlimited data, per month | SIM only contracts page | Source | Checked |
|---|---|---|---|---|
| Lycamobile | £12.50/30 days, the UK Plan Unlimited row on the seller's own ladder | Lycamobile's own priced page | lycamobile.co.uk | September 2026 |
| Vodafone | £23/month, unlimited data, 24 month plan | Vodafone's own priced page | vodafone.co.uk | September 2026 |
Coverage of SIM only contracts is evidenced by the seller's own page at the linked URL, checked on the date shown, never by a marketing claim. The headline figure above is the record's median published unlimited data SIM price, which is the one line comparable across sellers; the SIM only contracts figures themselves are in the table below, each recording what it is per.
What a term actually costs
Add the rises before you compare. Vodafone publishes a £2.50 April increase for pay monthly airtime and data plans, and on its unlimited plan that is £25.50 from 1 April 2027 and £28 from 1 April 2028.
A saving claim is a claim about the term, not about the market. Vodafone publishes Save £288 with a 24-month plan, which is a comparison with its own shorter option.
A rolling monthly plan can be repriced too, but you can leave the month it happens.
The switch is the same either way: you need a PAC or a STAC code, and the old contract ends when the switch completes rather than when you ask.
Cite or embed this figure
The seller's own published monthly price for an unlimited-data SIM in SIM only contracts was £17.75 in September 2026, across 2 checked network price pages recorded in SIM Only Deals Compare Price Record.
Cite as: "SIM Only Deals Compare Price Record: SIM only contracts", updated 2026-09-10, https://simonlydealscompare.co.uk/deals/sim-only-contracts/.
Download the SIM only contracts price record (CSV), free to reuse with citation.