30 day SIM only deals

Use our SIM only search to find the cheapest 30 day SIM only deals on the market

  • Compare 30 day SIM only deals, updated hourly.
  • Switch to a new network and keep your existing number, simply and quickly!

Compare 30 day SIM only deals

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  • 1pMobile
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  • iD Mobile
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Spusu SIM Card 5G
Spusu SIM or eSIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

1 GB Data
You pay
£2.90
per month
Powered By: EE Free EU Roaming Price freeze until 2026
EXCLUSIVE DEAL
Talkmobile SIM Card 5G
Talkmobile SIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

5 GB Data
You pay
£4.95
per month
Powered By: Vodafone Free EU Roaming
Lycamobile SIM Card 5G
Lycamobile SIM or eSIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

5 GB Data
You pay
£5.00
per month
Powered By: EE
Lebara SIM Card 5G
Lebara SIM
1 month contract
1000
Minutes
1000
Texts

5 GB Data
You pay
£5.00
per month

3 Months at £2.50
Powered By: Vodafone 50% off for 3 months with code LEBARA3M Free EU roaming 100 International minutes
Talk Home SIM Card 5G
Talk Home SIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

4 GB Data
You pay
£5.00
per month

3 Months at £0.01
Powered By: EE
Asda Mobile SIM Card
Asda Mobile SIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

3 GB Data
You pay
£5.00
per month
Powered By: Vodafone Free EU roaming
EXCLUSIVE DEAL
Talkmobile SIM Card 5G
Talkmobile SIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

20 GB Data
You pay
£5.95
per month
Powered By: Vodafone Free EU Roaming
EXCLUSIVE DEAL
Talkmobile SIM Card 5G
Talkmobile SIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

8 GB Data
You pay
£5.95
per month
Powered By: Vodafone Free EU Roaming
BLACK FRIDAY OFFER
iD Mobile SIM Card 5G
iD Mobile SIM or eSIM
1 month contract
Unlimited
Minutes
Unlimited
Texts

20 GB Data
You pay
£6.00
per month
Powered By: Three Free EU roaming
Choose a retailer
    iD Mobile SIM Card 5G
    iD Mobile SIM or eSIM
    1 month contract
    Unlimited
    Minutes
    Unlimited
    Texts

    8 GB Data
    You pay
    £6.00
    per month
    Powered By: Three Free EU roaming
    Choose a retailer
      Smarty SIM Card 5G
      Smarty SIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      5 GB Data
      You pay
      £6.00
      per month
      Powered By: Three Free EU roaming
      Giffgaff SIM Card 5G
      Giffgaff SIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      2 GB Data
      You pay
      £6.00
      per month
      Powered By: O2 Free EU Roaming
      1pMobile SIM Card
      1pMobile SIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      2 GB Data
      You pay
      £6.00
      per month
      Powered By: EE
      Giffgaff SIM Card 5G
      Giffgaff SIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      1 GB Data
      You pay
      £6.00
      per month
      Powered By: O2 Free EU Roaming
      Spusu SIM Card 5G
      Spusu SIM or eSIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      20 GB Data
      You pay
      £6.90
      per month
      Powered By: EE Free EU Roaming Price freeze until 2026
      EXCLUSIVE DEAL
      Talkmobile SIM Card 5G
      Talkmobile SIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      40 GB Data
      You pay
      £6.95
      per month
      Powered By: Vodafone Free EU Roaming
      EXCLUSIVE DEAL
      Talkmobile SIM Card 5G
      Talkmobile SIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      30 GB Data
      You pay
      £6.95
      per month
      Powered By: Vodafone Free EU Roaming
      EXCLUSIVE DEAL
      Talkmobile SIM Card 5G
      Talkmobile SIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      15 GB Data
      You pay
      £6.95
      per month
      Powered By: Vodafone Free EU Roaming
      BLACK FRIDAY OFFER
      iD Mobile SIM Card 5G
      iD Mobile SIM or eSIM
      1 month contract
      Unlimited
      Minutes
      Unlimited
      Texts

      40 GB Data
      You pay
      £7.00
      per month
      Powered By: Three Free EU roaming
      Choose a retailer
        iD Mobile SIM Card 5G
        iD Mobile SIM or eSIM
        1 month contract
        Unlimited
        Minutes
        Unlimited
        Texts

        30 GB Data
        You pay
        £7.00
        per month
        Powered By: Three Free EU roaming
        Can't find what you are looking for?
        Deals last updated: 3 hours 30 minutes ago

        Find the best 30 day SIM only deal for you

        SIM Only Finder compares 30 day sim only deals and tariffs from all the UK’s leading mobile networks and MVNOs. These include 3 Mobile, O2, EE, Vodafone, ID Mobile, Virgin Mobile, Smarty, VOXI, Sky Mobile, Lebara Mobile and Tesco Mobile.

        What is a 30 day SIM only deal?

        A 30 day SIM only or a one month SIM only, is pay monthly SIM Only deal. Unlike 12 month sim only deals or 24 month sim only deals, a 30 day sim only deal usually provides much better value for money.

        As the name suggests not only do you get better value for money, but you also are not committed to any long term contracts. Most 30 day sim only deals allow you to cancel by giving 30 days notice. Some allow you to cancel just by not paying for the next month, these include the likes or GiffGaff or Smarty Mobile.

        Otherwise 30 day or 1 month sim only deals are the same as every other SIM only deal, whereby you pay a fee for a set allowance of data, calls and texts. Longer term SIM Only deals may come with bigger benefits or incentives, but there are also some very good 30 day sim only deals too.

        How do 30 day SIM Only deals work?

        30 day SIM Only deals work identically to their longer 12 month and 24 month counterparts. 

        The key difference is in the name, and that is that you are only legally committee to stay with them for 30 days, and can leave by giving 30 days notice. 

        30 day SIM Only deals offer much better value for money that pay as you go SIM cards and you do not need to worry about remembering to top up or converting your top up into a bundle. At the end of each month your 30 day or 1 month SIM card automatically renews or rolls over for another month unless you have explicity asked your network to cancel.

        What happens after 30 days?

        After your intial 30 days your sim only deal will automatically renew. This will continue to happen until you ask your network to cancel, this can be done usually by giving them a call or doing so via the networks mobile app. Most 30 day SIM only deals will require 30 days notice in order to cancel your monthly subscription.

        Don't forget you can also port your number onto your SIM only deal and then off to another network once done. There is no limit on how many times you can do this. Read our handy guide here for more info.

        Do I need to pass a credit check for a 30 day SIM only?

        This largely depends on the network. Smaller networks such as Smarty, Lebara, VOXI and GiffGaff don't apply credit checks, some other networks may still check your credit score.

        Although there are credit checks, this are much lighter, less stringent and easier to pass than if you were applying for a pay monthly, 12 month SIM only deal or 24 month SIM only deal due to less risk for the networks.

        Pros and cons of 30-day SIM only deals

        Pros

        • Much more flexbility than a longer term deal, meaning you are free to leave and change your deal whenever you want.
        • There are a lot of great value plans to choose from
        • Credit checks are generally easier to pass
        • Good for when you don't want to be tied into a longer contract
        • Can use your old handset but with a better value deal

        Cons

        • Included allowances will not be as good as on longer term deals
        • Signing up for longer can give you better value for money

        SIM only Networks

        1pMobile SIM Only Deals
        Asda Mobile SIM Only Deals
        Boshhh Mobile SIM Only Deals
        Giffgaff SIM Only Deals
        Grade Mobile SIM Only Deals
        Honest Mobile SIM Only Deals
        iD Mobile SIM Only Deals
        Lebara SIM Only Deals
        Lycamobile SIM Only Deals
        O2 SIM Only Deals
        Sky Mobile SIM Only Deals
        Smarty SIM Only Deals
        Spusu SIM Only Deals
        Talk Home SIM Only Deals
        Talkmobile SIM Only Deals
        Tesco Mobile SIM Only Deals
        Three SIM Only Deals
        Vodafone SIM Only Deals
        Voxi SIM Only Deals

        Our Retailer Partners

        1pMobile
        Asda Mobile
        Boshhh Mobile
        Carphone Warehouse
        e2save
        Fonehouse
        Giffgaff
        Grade Mobile
        Talk Home
        Honest Mobile
        ID Mobile
        Lebara
        Lycamobile
        Tesco Mobile
        Reward Mobile
        Sky Mobile
        mobiles.co.uk
        O2
        Smarty
        Spusu
        Talkmobile
        Three
        Vodafone
        VOXI