Our best SIM Only deals and contracts.

Not bundled to a handset, SIM only deals are notably cheaper than standard smartphone contracts. They even offer the flexibility to change devices whenever you please. Here at iD Mobile, we offer SIM only deals on 30-day rolling contracts. This means you're free to modify your plan monthly, increasing or decreasing your data to suit your lifestyle.

Discover features of all our plans

30 days plans

Giving you the flexibility to change or cancel your plan anytime.

Unlimited Texts

Text as much as you like.

Data Rollover

Roll your unused data over to the next month.


Roam like you’re at home in 50 destinations worldwide.

Bill Capping

Cap your monthly spend to an amount that works for you.

What is a SIM only deal?

A SIM only deal works in the same way as a regular mobile contract - just without the handset. You'll pay monthly for minutes, texts and data, choosing a package that suits you best.

Why choose an iD Mobile SIM Only deal?

Speedy 4G is offered as standard with every iD Mobile SIM only deal too, and our multi-size SIM cards fit any smartphone to make life that little bit easier.

You'll be able to enjoy the same exclusive benefits all our other iD Mobile customers receive too. It doesn't matter if you choose a SIM only deal, have a regular monthly contract or Pay As You Go, every member of the iD family can look forward to free EU Roaming, Data Rollover and Capping.

With our Data Rollover feature, you'll get a second chance to make the most of your unused data. Whatever's left over from your monthly contract will automatically be carried over to the next month of your SIM only deal, meaning you'll never let a MB go to waste. Capping, meanwhile, ensures you'll never be surprised with a hefty bill. You have the ability to put a limit, from £0, on your out-of-plan spend too - we'll never let you use more than you've agreed.

Finally, EU Roaming lets all iD customers use their monthly data while abroad. Google directions, update Instagram or video call loved ones back home without worrying about the extra cost.

What are the benefits of SIM Only?

If you already own a phone you're happy with, a SIM Only plan is a wise choice. Not only can you carry on using the device you love, you can look forward to paying less every single month too. As you'll no longer need to factor in the cost of a new handset, your monthly plan will simply include a bundle of minutes, texts and data that suit you.

SIM only contracts are popular thanks to their flexibility too. At iD Mobile, SIM Only deals operate as 30-day rolling contracts, meaning you can modify or end your contract easily by giving us a month's notice. It's great if you find your data usage fluctuates month to month, or if you're not ready to sign up to a new 12 or 24-month contract straight away. Got your eye on a new handset, which won't be released for three months? Try SIM Only while you wait!

On top of all of this, you'll still benefit from network perks like free EU Roaming as a SIM Only customer.

Your questions answered.

If you run out of an allowance, you can still keep using it (for example, if you run out of texts you can keep sending text messages), but you'll be charged at out-of-bundle rates.

To prevent you from racking up these out-of-bundle charges, it's easy to purchase an add-on of minutes, texts or data (depending on which allowance you've run out of).

Please note: add-ons can't be backdated to cover your past usage. They come into effect when they're purchased, and never before.

Yes. It's simple to keep your old mobile number when you sign up to an iD SIM only plan. We've created a simple step-by-step guide that you can view on our 'Keep your number' page.

We'll always try to make sure you have the best possible coverage to keep you connected, wherever you are. Use our coverage checker to get an indication of what the signal is like in your area.

Your iD SIM card is 'one size fits all', so you don't have to worry about ordering the correct size. The card you receive contains all three SIM types (standard, micro and nano), and you just need to snap it into the size you need.

If you're not sure what size of SIM card your phone takes, you'll find this information in the device's user manual.

At iD Mobile, we offer 30-day rolling contracts. If you wish to end your contract with us, we simply need a month's notice. The same goes for editing your contract - if you fancy more minutes or need more data just get in touch!

For Pay Monthly SIM Only plans, we will run a credit check. We'll always ask your permission before this happens, and we'll inform you about our decision as soon as possible.

Due to shorter contract lengths and the absence of a handset, SIM Only applications are more likely to be accepted than Pay Monthly deals. However, if your application has been declined please don't hesitate to get in touch with our team. We'll try our best to find a solution that works for you.

Legal stuff.

Fair usage policy.

Our fair usage policy applies to all pay monthly phone, SIM Only and Pay-as-you-go plans. Our open data policy applies to selected plans.