Cheapest SIM only deals
SIM only deals are a great way to save money if you don't need a new phone. We've found the cheapest SIM only deals available on the market.
Our top pick
Mobile SIM Deal
12 months
DATA
n/a
allowance
MINUTES
0
allowance
PRICE
£3.75
per month
Unbeatable UK signal: automatically switches to EE, O2, Three, and Vodafone for essential apps.
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Mozillion Mobile SIM Deal
24 months
DATA
1 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£4
per month
Mozillion Mobile SIM Deal
12 months
DATA
1 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£4.50
per month
Mobile SIM Deal
24 months
DATA
3 GB
allowance
MINUTES
Unlimited
allowance
PRICE
£5
per month
Airtime plan will increase every April bill thereafter. Price will be £6 from Apr 2026. Airtime plan will increase every April bill thereafter. Price will be £7 from Apr 2027.
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