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30-day SIM deals

Looking for a short-term 30-day SIM only deal? Keep reading to find out everything you need to know about cheap SIM only 30-day mobile phone contracts.

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Monthly cost
Data
5G
Minutes
Contract length
Texts
1
iD Mobile logo
iD Mobile SIM cardPromoted

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
Wi-Fi-calling
3 months' Free Apple TV+
Cyber Monday deal
100GBdata
£10.00per month
Talkmobile logo
Talkmobile SIM cardPromoted

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
EU roaming included
Black Friday deal
100GBdata
£9.95per month
Virgin Mobile logo
Virgin Mobile SIM cardPromoted

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
Data rollover
Cyber Monday deal
6GBdata
£5.95per month
iD Mobile logo
iD Mobile SIM card

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
Wi-Fi-calling
3 months' Free Apple TV+
Cyber Monday deal
30GBdata
£8.00per month
Talkmobile logo
Talkmobile SIM card

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
EU roaming included
Black Friday deal
30GBdata
£7.95per month
Talkmobile logo
Talkmobile SIM card

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
EU roaming included
Black Friday deal
70GBdata
£9.95per month
Asda Mobile logo
Asda Mobile SIM card

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
EU roaming included
Up to 150 Mbps
Cyber Monday deal
Unlimiteddata
£20.00per month
Talkmobile logo
Talkmobile SIM card

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
EU roaming included
4GBdata
£4.95per month
Asda Mobile logo
Asda Mobile SIM card

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
EU roaming included
Up to 2 Mbps
Cyber Monday deal
Unlimiteddata
£15.00per month
Virgin Mobile logo
Virgin Mobile SIM card

Contract length

1 month

Contract length

1 month

Minutes

Unlimited

Minutes

Unlimited

Texts

Unlimited

Texts

Unlimited

5G
Data rollover
Cyber Monday deal
12GBdata
£7.00per month
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Uswitch services are provided at no cost to you, but we may receive a commission from the companies we refer you to. To find out more about how our site works, click here. If a deal is ‘promoted’ on Uswitch’s tables, then it has been lent additional visibility as a result of us securing exclusivity on a great deal, or a commercial agreement to showcase what we believe to be market-leading value to consumers.

How does a 30-day SIM work?

A 30-day SIM only deal is the same as a 12-month and 24-month SIM only deal – you’re just tied to the contract for a considerably shorter period of time. That means you’re free to ditch the deal at any point with just 30-days’ notice.

Aside from that, you still get an allowance of data, calls and texts, just as you would with a longer SIM only deal. You don’t have to renew every month, either. The deal will continue to roll until you decide to cancel.

What are the pros and cons of a 30-day SIM deal?

The pros include:

  • Leave the contract at any point with 30-days' notice
  • Wide range of plans on offer from many networks
  • Minimal credit check, if at all
  • Ideal SIM only stopgap solution

And the cons:

  • You might get more for your money on a longer deal
  • Switching networks for a short time may feel like a bit of a hassle
  • Longer-term SIM plans usually include better benefits

What network providers offer 30-day SIM deals?

Most UK networks offer 30-day SIM only deals, from household names like Vodafone and Three, to smaller providers like Smarty and iD Mobile.

Vodafone 30-day SIM-only deals

Vodafone is one of the UK’s biggest networks, with vast coverage throughout the country. You can grab a 30-day SIM only plan on various data options. And some deals also offer inclusive roaming in up to 81 locations.

Three SIM-only deals

Three’s short-term deals cover a range of data plans at attractive prices. Some plans also include tethering and EU roaming.

GiffGaff SIM-only deals

giffgaff offers 30-day 'goodybags', which include different data allowances and even EU-inclusive roaming. giffgaff is powered by O2’s network.

Virgin Mobile SIM-only deals

Virgin Mobile’s SIM-only deals can be purchased on 30-day rolling plans. You can choose from a broad range of data allowances, starting at 4GB per month and going right up to unlimited data.

You’ll get unlimited calls and texts as standard, as well as extras on some plans, such as EU roaming, data rollover and data-free social messaging on sites like WhatsApp and Facebook.

Smarty SIM-only deals

Smarty is famed for its low-cost plans and a service that runs on Three’s network. One of Smarty’s attractive features is money off bills in exchange for unused data.

iD Mobile SIM-only deals

Choose an iD Mobile 30-day SIM only deal and you’ll get roaming in 50 locations and a network run on O2’s infrastructure.

How do I choose the best 30-day SIM deal?

Choosing the best 30-day SIM only deal comes down to your specific needs and requirements. Think about how much data you need, and how much you’re looking to pay. Then compare 30-day offers from UK networks to see which is most suitable for your needs.

What do I do after my 30-day SIM deal finishes?

Once the 30 days of your SIM only deal is up, either continue using and keep the deal rolling or choose another deal to switch to.

Do I have to top up my 30-day SIM every month?

No, you don’t have to top up a 30-day SIM only plan. The deal will continue on a rolling month-to-month basis until you choose to end it.

How do I cancel my 30-day SIM plan?

Just contact your network and inform them that you no longer wish to continue with the plan, and either choose a new offer from the same network or switch to another provider.

FAQs

Can I buy a 30-day SIM card without a contract?

When you sign up for a 30-day SIM only deal, you’re only bound to the contract for 30-days. There’s no lengthy commitment involved at all, so if you want to change to a different plan as early as one month after starting, you’re free to do so.

Can I get unlimited data with a 30-day SIM?

Yes, you can get a 30-day or no contract SIM only deal with unlimited data on a range of UK networks, including Vodafone, Three, ID mobile, Lebara and more.

What is the difference between a 30-day SIM and a pay-as-you-go SIM?

A 30-day SIM only deal includes a certain amount of data, calls, and messages for a set fee, which you can keep on rolling month-to-month without topping up. With a pay-as-you-go deal, you have to continue topping up your credit when you run out.