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United Kingdom · SIM-only

SIM-only deals

Compare selected UK SIM-only deals by price, data, network and contract length.

Updated with recently checked offers · Selected providers · Prices can change
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Checked 3 Nov 2026

Best SIM deals right now

Ranked from recently checked offers.

How we calculate Best value

We compare effective monthly cost with useful data, with data gains tapering after 100GB. We then apply small, equal adjustments for a 30-day term, 5G, eSIM, roaming information and a stated no-price-rise policy. Provider, affiliate and commercial status never affect the result.

How to choose a SIM-only deal

Start with the data you use, then compare the term, network, roaming policy and price changes.

30-day vs longer SIMs Which SIMs include EU roaming? Is eSIM worth it? How to keep your number Which mobile network should I choose?

How we show deals

Why are total and effective costs shown?

We show the provider’s advertised monthly price alongside any stated upfront cost and the contract total, so it is easier to compare the terms.

Does DealPriceCheck cover the whole UK market?

No. We compare selected providers and do not claim whole-of-market coverage.