MozillionMozillion
24 months
Unlimited data SIM-only deals
Every unlimited-data SIM we track, cheapest first. They all run on one of the UK’s three networks, so pick the coverage you want and pay the least for it.
MozillionMozillionMozillion
24 months
LycamobileLycamobile
1 month
Unlimited Data5G
UK Unlimited
Unlimited minutes & texts
£12.50/mo
30-day rolling
giffgaffgiffgaff
18 months
£14.00/mo
18-month contract
MozillionMozillion
12 months
MozillionMozillion
12 months
iD MobileiD Mobile
12 months
Unlimited Data5G
Unlimited minutes & texts
£16.00/mo
12-month contract
iD MobileiD Mobile
24 months
Unlimited Data5G
Unlimited minutes & texts
£16.00/mo
24-month contract
SMARTYSMARTY
1 month
Unlimited Data5G
Unlimited minutes & texts
£17.00/mo
30-day rolling
iD MobileiD Mobile
1 month
Unlimited Data5G
Unlimited minutes & texts
£18.00/mo
30-day rolling
LycamobileLycamobile
24 months
Unlimited Data5G
Unlimited minutes & texts
ASDA MobileASDA Mobile
24 months
Unlimited Data5G
Unlimited minutes & texts
£19.00/mo
24-month contract
CMLinkCMLink
12 months
giffgaffgiffgaff
1 month
£20.00/mo
30-day rolling
Superdrug MobileSuperdrug Mobile
1 month
£20.00/mo
30-day rolling
Sky MobileSky Mobile
1 month
£21.00/mo
30-day rolling
ASDA MobileASDA Mobile
1 month
Unlimited Data5G
Unlimited minutes & texts
£22.00/mo
30-day rolling
ASDA MobileASDA Mobile
12 months
Unlimited Data5G
Unlimited minutes & texts
£22.00/mo
12-month contract
EcotalkEcotalk
1 month
£22.00/mo
30-day rolling
LycamobileLycamobile
12 months
Unlimited Data5G
Unlimited minutes & texts
O2O2
24 months
£22.00/mo
24-month contract
LebaraLebara
12 months
£22.50/mo
12-month contract
EEEE
24 months
£23.00/mo
24-month contract
Utility WarehouseUtility Warehouse
1 month
£23.00/mo
30-day rolling
CMLinkCMLink
1 month
£24.00/mo
30-day rolling
Your Co-op MobileYour Co-op Mobile
1 month
Unlimited Data5G
All you can eat
Unlimited minutes & texts
£24.00/mo
30-day rolling
LycamobileLycamobile
1 month
Unlimited Data5G
Unlimited minutes & texts
Honest MobileHonest Mobile
1 month
£25.00/mo
30-day rolling
LebaraLebara
1 month
£25.00/mo
30-day rolling
1pMobile1pMobile
1 month
£25.00/mo
30-day rolling
VodafoneVodafone
24 months
£26.00/mo
24-month contract
Zoiko MobileZoiko Mobile
24 months
£29.50/mo
24-month contract
Meaningful PlanetMeaningful Planet
24 months
£30.00/mo
24-month contract
Meaningful PlanetMeaningful Planet
12 months
£33.00/mo
12-month contract
Zoiko MobileZoiko Mobile
12 months
£33.77/mo
12-month contract
EEEE
1 month
£35.00/mo
30-day rolling
O2O2
12 months
Unlimited Data5G
Classic
Unlimited minutes & texts
£35.00/mo
12-month contract
VOXIVOXI
1 month
Unlimited Data5G
Unlimited minutes & texts
£35.00/mo
30-day rolling
EEEE
24 months
Unlimited Data5G
Full Works for iPhone
£36.00/mo
24-month contract
EEEE
24 months
Unlimited Data5G
Full Works
£36.00/mo
24-month contract
Meaningful PlanetMeaningful Planet
1 month
£36.00/mo
30-day rolling
Zoiko MobileZoiko Mobile
1 month
£37.99/mo
30-day rolling
O2O2
1 month
£38.00/mo
30-day rolling
ParentShieldParentShield
1 month
£39.99/mo
30-day rolling
VodafoneVodafone
1 month
£40.00/mo
30-day rolling
Monthly prices are each provider’s current cost, checked against their site. Links marked * earn us a commission if you buy — it never changes what you pay, and it plays no part in how we rank deals.
