SIM comparison
Compare SIM only deals
Compare 30 day, 12 month, 5G and unlimited data SIM only deals from UK networks.
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Quickly browse our most popular deal types.
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Popular SIM networks
Browse deals by provider and compare offers quickly.
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8 deals
EE
From £12.95 per month
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12 deals
Giffgaff
From £5.84 per month
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13 deals
iD Mobile
From £8.10 per month
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14 deals
Lebara
From £8.26 per month
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9 deals
O2
From £5.26 per month
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12 deals
Sky Mobile
From £5.55 per month
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12 deals
Tesco Mobile
From £5.31 per month
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9 deals
Three
From £8.78 per month
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12 deals
Vodafone
From £5.13 per month
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11 deals
VOXI
From £5.22 per month
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Compare SIM only plans in the UK
Compare UK SIM only deals including cheap SIMs, 5G SIM plans, unlimited data SIMs and flexible 30 day rolling contracts. Browse deals by network, data allowance and monthly cost to find a plan that suits how you use your phone.
SIM only plans can be a good choice if you already have a phone and want a lower monthly price, more data or a shorter contract without paying for a new handset.
SIM only FAQs
What is a SIM only deal?
A SIM only deal gives you calls, texts and mobile data without a new phone, usually for a lower monthly cost than a handset contract.
Are 30 day SIM plans worth it?
A 30 day SIM can be useful if you want flexibility, while longer contracts may offer better monthly value depending on the network and data allowance.
Do I need unlimited data?
Unlimited data can suit heavy users who stream, tether or use mobile data daily, while lighter users may save money with a smaller data allowance.