Cheapest Unlimited Data SIM Deals UK | PAYM And PAYG

Searching for the cheapest possible unlimited data SIM you can buy in the UK?

Below, you’ll find the cheapest SIM deals with unlimited usage on the market at the moment.

Contents

Cheapest pay monthly unlimited data SIM deals

in
iD Mobile logo.
24 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Cashback by redemption: £120.00
  • Free EU Roaming
  • Recommend a Friend and Earn Rewards
  • + More
Unlimited Monthly Data
£10.00 Average Monthly Cost
£15.00 Per Month
Mobiles.co.uk logo. View Deal
in
iD Mobile logo.
12 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Cashback by redemption: £60.00
  • Free EU Roaming
  • Recommend a Friend and Earn Rewards
  • + More
Unlimited Monthly Data
£10.00 Average Monthly Cost
£15.00 Per Month
Mobiles.co.uk logo. View Deal
in
iD Mobile logo.
12 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Cashback by redemption: £72.00
  • Free EU Roaming
  • Recommend a Friend and Earn Rewards
  • + More
Unlimited Monthly Data
£10.00 Average Monthly Cost
£16.00 Per Month
Mobiles.co.uk logo. View Deal
in
iD Mobile logo.
12 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Cashback paid automatically: £40.00
  • Free EU Roaming
  • Recommend a Friend and Earn Rewards
  • + More
Unlimited Monthly Data
£12.67 Average Monthly Cost
£16.00 Per Month
Mobiles.co.uk logo. View Deal
in
iD Mobile logo.
24 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Cashback paid automatically: £50.00
  • Free EU Roaming
  • Recommend a Friend and Earn Rewards
  • + More
Unlimited Monthly Data
£12.92 Average Monthly Cost
£15.00 Per Month
Mobiles.co.uk logo. View Deal
in
iD Mobile logo.
12 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Includes capping + data rollover
  • Free Roaming up to 30GB
  • + More
Unlimited Monthly Data
£15.00 Average Monthly Cost
£15.00 Per Month
The Carphone Warehouse logo. View Deal
in
giffgaff logo.
18 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Free calls and texts to same network
  • Become a Super Recruiter and earn rewards
  • + More
Unlimited Monthly Data
£15.00 Average Monthly Cost
£15.00 Per Month
giffgaff logo. View Deal
in
iD Mobile logo.
24 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Includes capping + data rollover
  • Free Roaming up to 30GB
  • + More
Unlimited Monthly Data
£16.00 Average Monthly Cost
£16.00 Per Month
The Carphone Warehouse logo. View Deal
in
iD Mobile logo.
24 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • 14-day return policy for in-store purchases
  • 14-day return policy for online purchases
  • + More
Unlimited Monthly Data
£16.00 Average Monthly Cost
£16.00 Per Month
The Carphone Warehouse logo. View Deal
in
Three logo.
12 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
Unlimited Monthly Data
£17.00 Average Monthly Cost
£17.00 Per Month*
Metrofone logo. View Deal

*Monthly cost will increase by approx. £1-£1.50 each April

Cheapest pay as you go (month to month) unlimited data SIM deals

in
EE logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • 24/7 Service Support
  • eSIM Compatible
Unlimited Monthly Data
£7.00 Average Monthly Cost
£7.00 Per Month*
EE logo. View Deal

*Monthly cost will increase by approx. £1.50 each April
in
iD Mobile logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Includes capping + data rollover
  • Free Roaming up to 30GB
  • + More
Unlimited Monthly Data
£15.00 Average Monthly Cost
£15.00 Per Month
The Carphone Warehouse logo. View Deal
in
iD Mobile logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • 14-day return policy for in-store purchases
  • 14-day return policy for online purchases
  • + More
Unlimited Monthly Data
£15.00 Average Monthly Cost
£15.00 Per Month
The Carphone Warehouse logo. View Deal
in
Three logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Three Wi-Fi Hotspots
  • Recommend a Friend and Earn Rewards
  • + More
Unlimited Monthly Data
£16.00 Average Monthly Cost
£16.00 Per Month*
Three logo. View Deal

*Price increases to £32.00 after 1 month
in
iD Mobile logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • Data Rollover
  • Free EU Roaming
  • + More
Unlimited Monthly Data
£16.00 Average Monthly Cost
£16.00 Per Month
iD Mobile logo. View Deal
in
Talkmobile logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
  • eSIM Compatible
  • EU Roaming Included
  • + More
Unlimited Monthly Data
£16.95 Average Monthly Cost
£16.95 Per Month
Talkmobile logo. View Deal
in
Smarty logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
Unlimited Monthly Data
£17.00 Average Monthly Cost
£17.00 Per Month
Smarty logo. View Deal
in
Lebara logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
Unlimited Monthly Data
£25.00 Average Monthly Cost
£25.00 Per Month
Lebara logo. View Deal
in
1pMobile logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
Unlimited Monthly Data
£25.00 Average Monthly Cost
£25.00 Per Month
1pMobile logo. View Deal
in
1pMobile logo.
1 month contract
, New
  • Unlimited Texts
  • Unlimited Calls
Unlimited Monthly Data
£25.00 Average Monthly Cost
£25.00 Per Month
1pMobile logo. View Deal

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