Unlimited data SIM only deals
If you regularly use alot of mobile data, then you'll want to look at unlimited data SIM only deals. We've found the best unlimited data SIM only deals available on the market.
Our top pick
Mobile SIM Deal
12 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£3.75
per month
Connects to EE, O2, Three, and Vodafone networks (multi-network)
Smarty Mobile SIM Deal
1 month
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£12
per month
iD Mobile Mobile SIM Deal
24 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£16
per month
iD Mobile Mobile SIM Deal
12 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£17
per month
iD Mobile Mobile SIM Deal
1 month
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£18
per month
Mobile SIM Deal
12 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£18
per month
Airtime plan will increase every April bill thereafter. Price will be £19.50 from Apr 2026.
Smarty Mobile SIM Deal
1 month
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£20
per month
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