Experience Ultimate Flexibility with 30-Day SIM Only Deals: Compare and Save!

Using a Savely's website to compare 30-day SIM only deals is a great way to find a flexible plan that suits your needs. With a 30-day contract, you have the freedom to switch providers or plans without being tied down for a more extended period. Savely's website allows you to easily compare the data allowances, network coverage, and other features of different 30-day SIM only deals.

Monthly Cost

  • Up to £10
  • Up to £20
  • Up to £30
  • Up to £40

Contract Length

  • Rolling
  • 12 Months
  • 24 Months
  • 36 Months


  • 1GB +
  • 2GB +
  • 3GB +
  • 4GB +
  • 5GB +
  • 10GB +
  • 20GB +
  • Unlimited


  • Vodafone
  • Three
  • O2
  • Virgin
  • GiffGaff

Upfront Cost

  • £0
  • Up to £50
  • Up to £100
  • Up to £150
  • Up to £200


  • 300 +
  • 600 +
  • 900 +
  • Unlimited

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What SIM-only deals are and how they work:

A SIM-only deal is a contract that includes a SIM card and a predetermined number of minutes, messages, and data per month. It can also be a pay-as-you-go SIM card that gives you more flexibility and no commitment. A SIM-only deal does not include a handset, meaning you must use a phone you already own or buy a new one separately from your SIM-only deal.

Advantages and disadvantages of choosing a SIM-only deal:

SIM-only deals have a lot of advantages to handset and tariff deals. Here are some to consider when you are deciding what kind of deal you are looking for: 

  • One of the primary benefits of SIM deals is that it is typically less expensive than standard phone contracts because you are not paying for a new phone over the contract term. Instead, you only pay for the phone services.

  • Another advantage of SIM-only contracts is that they are more flexible than typical phone contracts. You can select a shorter contract length, so you are not locked into a long-term commitment. You can find contracts that last 24 months, 12 months or even 30 days. Furthermore, if you currently have a phone you like, you may retain it and switch to a new SIM card.

SIM-only phone contracts also have some disadvantages compared to other types of deals. We think it's important to consider those so you can make sure you are getting the right kind of deal before committing to any contracts: 

  • The main downside of monthly SIM-only plans is that you do not receive a new phone as part of the contract. If you do not own one already, consider a deal with a phone included, as it might save you more money than buying it outright. 

  • Traditional phone contracts sometimes include extras such as free gifts or special deals. These extras are less likely to be included in SIM-only plans.

Tips for choosing a Mobile SIM-only plan:

Choosing the best SIM-only mobile phone contract might take time due to numerous considerations. Here are some pointers to help you select the best option for what you need, whether you're searching for a contract or a no-contract deal:

Consider your usage:

  • Examine how much mobile data, minutes, and messages you use monthly. This will help you determine the type of tariff you require.

  • If you use a lot of data, seek a plan with a large data allowance.

  • If you primarily use your phone for calls and messages, look for plans with more minutes and texts.

Look at the coverage: Check if your chosen network has coverage in your location. You want to avoid signing up for a plan to discover that you won't be able to get a signal when you need it.

Look for special offers: Numerous networks provide special offers on SIM-only contracts, such as price reductions or more data. To save money, keep an eye out for those cheap SIM-only deals. Some plans may include subscription perks like Apple Music or BT Sport. 

Compare plans: Don't settle for the first plan you come across. Compare multiple tariffs from various suppliers using a comparison service like Savely to get the best possible deal for your money.

Consider contract length: If you choose a contract plan, consider how long you want to commit. Shorter contracts may be more flexible, but the monthly cost for shorter contracts may be higher.

Check for hidden costs, upfront costs and credit checks: Read the small print before choosing a deal. Check for any hidden costs, such as early termination fees or charges for exceeding data limitations. Also, while most SIM-only plans do not require a credit check and have no upfront costs, checking is always worthwhile. 

Consider your phone: If you already own a handset, be sure it's compatible with the network you're considering. If you need a new phone, we recommend getting a deal that includes the phone instead.

Pay-As-You-Go VS Contracts:

When it comes to SIM-only offers, there are two options: pay-as-you-go or contract plans. Here are a few critical differences between the two:

SIM-only Pay-As-You-Go plans:

You pay for the services you use on a per-minute, per-text, and data basis with pay-as-you-go plans. Because there are no fixed monthly rates, you pay for what you use. Pay-as-you-go plans are an excellent alternative if you use your phone sparingly because you won't be locked into a contract.

SIM-only contract deals:

Contract SIM-only options require you to pay a fixed monthly charge for a particular amount of time, often 12 or 24 months. There are also 30-day contracts, which are very popular if you want something other than a long-term commitment. 

These plans often include a certain number of minutes, messages, and data each month, which might be more cost-effective if you frequently use your phone.