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
Smarty Mobile SIM Deal
1 month
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£12
per month
No hidden fair use policies within the UK for Unlimited data plans, no data speed restrictions.
UNLOCK EXCLUSIVE SAVINGS & DEALS
Join our savvy community and get insider access to the best broadband, power, mobile, and shopping deals – plus expert tips and money-saving guides delivered straight to your inbox.
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
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.
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.
iD Mobile Mobile SIM Deal
1 month
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£18
per month
Mozillion Mobile SIM Deal
24 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£18
per month
Mozillion Mobile SIM Deal
12 months
DATA
Unlimited
allowance
MINUTES
Unlimited
allowance
PRICE
£18.50
per month
Showing 1 to 10 of 325 results
