SIM Only Deals & Contracts.

SIM only deals are a cost-effective choice, as they skip the handset cost and let you switch devices whenever you want. At iD Mobile, we offer a range of cheap SIM only deals tailored for all budgets - ideal for keeping your phone while enjoying flexible, affordable contracts.

eSIM is now available for all iD Mobile plans. What’s an eSIM?
Extra Data
Unlimited Minutes
Unlimited Texts
1 month Plan length
80GB 60GB Data
£10.00 Per month
Double Data
Unlimited Minutes
Unlimited Texts
1 month Plan length
8GB 4GB Data
£6.00 Per month
Double Data
Unlimited Minutes
Unlimited Texts
1 month Plan length
25GB 12GB Data
£7.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
1 month Plan length
30GB 20GB Data
£8.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
1 month Plan length
150GB 100GB Data
£12.00 Per month
No Annual Price Rises
Unlimited Minutes
Unlimited Texts
1 month Plan length
200GB Data
£14.00 Per month
No Annual Price Rises
Unlimited Minutes
Unlimited Texts
1 month Plan length
250GB Data
£15.00 Per month
Unlimited Minutes
Unlimited Texts
1 month Plan length
Unlimited Data
£17.00 £18.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
12 months Plan length
175GB 120GB Data
£12.00 Per month
Double Data
Unlimited Minutes
Unlimited Texts
12 months Plan length
10GB 5GB Data
£6.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
12 months Plan length
30GB 20GB Data
£7.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
12 months Plan length
40GB 25GB Data
£8.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
12 months Plan length
90GB 70GB Data
£10.00 Per month
No Annual Price Rises
Unlimited Minutes
Unlimited Texts
12 months Plan length
250GB Data
£14.00 Per month
Unlimited Minutes
Unlimited Texts
12 months Plan length
Unlimited Data
£16.00 £17.00 Per month
Unlimited Minutes
Unlimited Texts
24 months Plan length
Unlimited Data
£15.00 £16.00 Per month
Double Data
Unlimited Minutes
Unlimited Texts
24 months Plan length
12GB 6GB Data
£6.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
24 months Plan length
40GB 25GB Data
£7.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
24 months Plan length
50GB 30GB Data
£8.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
24 months Plan length
100GB 80GB Data
£10.00 Per month
Extra Data
Unlimited Minutes
Unlimited Texts
24 months Plan length
200GB 150GB Data
£12.00 Per month
No Annual Price Rises
Unlimited Minutes
Unlimited Texts
24 months Plan length
300GB Data
£14.00 Per month

Loading...

Terms and Conditions

1. 30GB limit if your UK allowance is 30GB or more. Roaming subject to fair usage & open data policies. Roaming comparison versus all UK network offerings for new subscribers across all plans - April 2023.

SIM Only Deal

A SIM Only deal provides you with a SIM card that includes a monthly allowance of data, minutes, and texts without tying you to a new handset. This makes it ideal for anyone who already has a phone they’re happy with.

What are the Benefits of a SIM Only Plan?

SIM only deals deliver both value and versatility, ideal for anyone aiming to cut down on mobile expenses without sacrificing benefits. Because there’s no cost of a new handset included SIM only contracts are much more affordable compared to full pay monthly phone contracts. This makes them perfect if you want to keep your current phone while saving money.

With cheap SIM only deals available from mobile providers including iD Mobile, you can enjoy additional savings while still getting a full set of features. Choose a contract term that best matches your needs - opt for a flexible 30-day deal, commit to a standard 12-month plan, or go with a longer 24-month agreement. With the flexibility to change plans when you want, SIM only contract deals let you experience the advantages of a regular mobile phone contract without the limitations, giving you the freedom to upgrade whenever you’re ready.

Why Choose an iD Mobile SIM Only Deal?

A iD Mobile SIM Only contract deal combines essential features and top-quality service, making it a great choice if you’re looking for a reliable and great value mobile provider. With iD Mobile, you’ll enjoy data rollover so that no data goes to waste, bill capping to keep your costs in check, and inclusive roaming in over 50 destinations, so you’re connected while traveling without extra charges. Our high-speed 4G and 5G coverage with 99% coverage across the UK ensures a smooth experience on any device. Whether you choose a SIM only mobile contract or Pay As You Go, iD Mobile makes mobile plans work around you.

What SIM Card Do I Need?

Most new phones use nano SIMs, while some older models may need a micro or standard SIM. iD Mobile’s SIM card contract comes with all three sizes in our multi-fit SIM card, so compatibility is guaranteed.

If your device supports it, there’s also an eSIM option for easy digital activation without a physical card. For those switching networks, keeping your existing number is simple - just request a PAC code from your current provider, and we’ll take care of the transfer.

SIM Only Deals

FAQs.

  • 80GB 60GB Data, Unlimited Minutes, Unlimited Texts, £10.00 p/m
  • 175GB 120GB Data, Unlimited Minutes, Unlimited Texts, £12.00 p/m
  • 8GB 4GB Data, Unlimited Minutes, Unlimited Texts, £6.00 p/m
  • 10GB 5GB Data, Unlimited Minutes, Unlimited Texts, £6.00 p/m
  • 12GB 6GB Data, Unlimited Minutes, Unlimited Texts, £6.00 p/m
  • 25GB 12GB Data, Unlimited Minutes, Unlimited Texts, £7.00 p/m
  • 30GB 20GB Data, Unlimited Minutes, Unlimited Texts, £7.00 p/m
  • 40GB 25GB Data, Unlimited Minutes, Unlimited Texts, £7.00 p/m
  • 30GB 20GB Data, Unlimited Minutes, Unlimited Texts, £8.00 p/m
  • 40GB 25GB Data, Unlimited Minutes, Unlimited Texts, £8.00 p/m
  • 50GB 30GB Data, Unlimited Minutes, Unlimited Texts, £8.00 p/m
  • 90GB 70GB Data, Unlimited Minutes, Unlimited Texts, £10.00 p/m
  • 100GB 80GB Data, Unlimited Minutes, Unlimited Texts, £10.00 p/m
  • 150GB 100GB Data, Unlimited Minutes, Unlimited Texts, £12.00 p/m
  • 200GB 150GB Data, Unlimited Minutes, Unlimited Texts, £12.00 p/m
  • 200GB Data, Unlimited Minutes, Unlimited Texts, £14.00 p/m
  • 250GB Data, Unlimited Minutes, Unlimited Texts, £14.00 p/m
  • 300GB Data, Unlimited Minutes, Unlimited Texts, £14.00 p/m
  • 250GB Data, Unlimited Minutes, Unlimited Texts, £15.00 p/m

A SIM only deal is a mobile plan offering data, minutes, and texts without including a new handset. It’s perfect if you’re happy with your current phone and want to lower your costs, as SIM only mobile contracts are often much cheaper than pay monthly phone plans. With a SIM only contract, you can choose flexible terms, like a rolling monthly plan, a 12-month contract, or longer.

Yes. It’s simple if you want to keep your number when you sign up to an iD Mobile SIM Only plan on an existing mobile or if you get a new phone. If you're already with us, you can switch your plan from your account and we'll simply update your monthly allowances and your bill from your next billing cycle. You can move up or down to a lower price SIM Only plan as long as you pass the usual eligibility criteria.

If you're not already with iD Mobile, you don't have to call your old mobile phone network to switch. Instead, just text ‘PAC' using your old SIM to 65075. PAC stands for Porting Authorisation Code, and sending us your PAC code will enable us to port (or bring) your old mobile number across to us.

Your old network will send you your PAC code and any information around outstanding penalties, charges or credit due on your account. In addition, if you've completed your minimum contract length with your old provider, they can't charge you for the remainder of your notice period when you switch networks. So, you won't have to pay two bills at once. Just be careful that you're not still in contract or they could levy a fee against you for leaving early.

You can then simply enter your PAC code here when you've got your new iD Mobile SIM Only plan and mobile number. We'll move your number to your new SIM Only plan the next working day if we receive it before 5:30pm Monday - Friday.

A pay monthly SIM only deal has a set monthly fee, giving you a fixed allowance of data, minutes, and texts. Pay as you go SIM only deal, on the other hand, lets you pay only for what you use by topping up as needed - ideal for those wanting flexibility without monthly commitments.

Yes, 5G is available on all iD Mobile SIM only contracts at no additional cost. If your device supports 5G and you’re within coverage, you’ll experience ultra-fast speeds and smoother streaming on your sim only mobile contract with iD. This means no trade-offs; you get the latest connectivity on your SIM only plan, whether for streaming, gaming, or everyday browsing.

Most modern smartphones use Nano SIMs, the smallest type of SIM card. However, some older models may require a Micro or Standard SIM. iD Mobile provides a multi-fit SIM that includes all three sizes, so you’ll have the right fit for your device. If your phone is compatible, you can also opt for an eSIM, a digital SIM that doesn't require a physical card.

Some mobile phone networks lock their phones so that they only accept SIM cards from that network. If your old phone was one purchased on contract from a network, it's much more likely to be locked than if you purchased the phone outright from a retailer.

If your phone is locked to a network, you'll need to unlock it. If you're out of contract but bought the phone from the network, you can usually get it unlocked for free. Simply contact the network and ask them to unlock it. (Even if you eventually move on from your old phone, by unlocking it your phone may well be worth more if you plan to sell it or trade it in against the cost of a new handset).

You can check if your phone is currently locked to a network by removing your existing SIM and inserting a SIM from another network in your phone. If it works and you get a mobile phone signal, it means that your phone is unlocked and you're good to go.

At iD Mobile, we offer 30-day, 12-month and 24-month SIM plans. With a 30-day SIM Only contract, if you wish to end your contract with us after 30-days, you simply need to let us know. The same goes for changing your plan - if you fancy more minutes or need more data, you can change your plan on the iD Mobile App or My Account online.

If you run out of an allowance, you can still keep using, but you'll be charged at out-of-plan rates or up until your bill cap limit. To prevent you from racking up these out-of-plan charges, it's easy to purchase an Add-on of data.

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

For a Pay Monthly SIM only deal, you will need to pass a credit check. We'll always ask your permission before we run a credit check and we'll inform you about our decision as soon as possible.

Due to the absence of a handset, SIM Only applications are more likely to pass a credit check 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.

Can't find your question?

Ask the iD Community

Legal stuff.

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.

5G compatible device and 5G coverage required.

Average saving based on pricing of new SIM only plans between 4th October 2024 and 27th December 2024. Comparing the effective monthly cost of plans on www.idmobile.co.uk vs. network's direct price (Vodafone, O2, EE and Three). iD Mobile were cheaper for 100.0% of the 332 like-for-like plans matched. Match criteria: same contract length, minutes, texts and data combination. Total cost of ownership is calculated by: ((monthly cost x contract length) – (discounted line rental x discounted months) – cashback) / contract length. For verification see idmobile.co.uk/save.

SIM only plans are not subject to annual CPI or RPI price increases. Full terms and conditions apply.

UK only. New and returning iD customers only. 11 December 2024 until further notice. £29.99 annual subscription price will be charged after trial unless cancelled. Visit here for full terms and conditions.

  1. Purchase a sim only on selected qualifying tariffs and ‘Get Up To Double Data on Selected Sim Only Plans’
  2. Promotion will run between 26/02/2025 - 25/03/2025
  3. Full details of the Qualifying Tariffs and the corresponding offer are set out in Table 1 below;

    Table 1 - Eligible Promotion Sims
  4. Establishment Tariff Promotional Tariff Extra Data
    £6 Unlimited Mins, Texts, 4GB Data 1M £6 Unlimited Mins, Texts, 8GB Data 1M 100% Extra Data (4GB Extra Data)
    £7 Unlimited Mins, Texts, 12GB Data 1M £7 Unlimited Mins, Texts, 25GB Data 1M 108% Extra Data (13GB Extra Data)
    £8 Unlimited Mins, Texts, 20GB Data 1M £8 Unlimited Mins, Texts, 30GB Data 1M 50% Extra Data (10GB Extra Data)
    £10 Unlimited Mins, Texts, 60GB Data 1M £10 Unlimited Mins, Texts, 80GB Data 1M 33% Extra Data (20GB Extra Data)
    £12 Unlimited Mins, Texts, 100GB Data 1M £12 Unlimited Mins, Texts, 150GB Data 1M 50% Extra Data (50GB Extra Data)
    £6 Unlimited Mins, Texts, 5GB Data 12M £6 Unlimited Mins, Texts, 10GB Data 12M 100% Extra Data (5GB Extra Data)
    £7 Unlimited Mins, Texts, 20GB Data 12M £7 Unlimited Mins, Texts, 30GB Data 12M 50% Extra Data (10GB Extra Data)
    £8 Unlimited Mins, Texts, 25GB Data 12M £8 Unlimited Mins, Texts, 40GB Data 12M 60% Extra Data (15GB Extra Data)
    £10 Unlimited Mins, Texts, 70GB Data 12M £10 Unlimited Mins, Texts, 90GB Data 12M 29% Extra Data (20GB Extra Data)
    £12 Unlimited Mins, Texts, 120GB Data 12M £12 Unlimited Mins, Texts, 175GB Data 12M 46% Extra Data (55GB Extra Data)
    £6 Unlimited Mins, Texts, 6GB Data 24M £6 Unlimited Mins, Texts, 12GB Data 24M 100% Extra Data (6GB Extra Data)
    £7 Unlimited Mins, Texts, 25GB Data 24M £7 Unlimited Mins, Texts, 40GB Data 24M 60% Extra Data (15GB Extra Data)
    £8 Unlimited Mins, Texts, 30GB Data 24M £8 Unlimited Mins, Texts, 50GB Data 24M 67% Extra Data (20GB Extra Data)
    £10 Unlimited Mins, Texts, 80GB Data 24M £10 Unlimited Mins, Texts, 100GB Data 24M 25% Extra Data (20GB Extra Data)
    £12 Unlimited Mins, Texts, 150GB Data 24M £12 Unlimited Mins, Texts, 200GB Data 24M 33% Extra Data (50GB Extra Data)
  5. Any additional usage that is not included within your monthly allowances will be charged as standard, for more information please www.idmobile.co.uk/help-and-advice/call-charges.
  6. Offer may not be applicable if the sales journey was commenced through an affiliate or third party online retailer, including but not limited to: (http://www.uswitch.com , www.moneysavingexpert.com, www.moneysupermarket.com, additional affiliate partners to be added).
  7. To be eligible to participate in the Promotion you must be a resident (aged 18+) of the United Kingdom.
  8. iD Mobile reserves the right to modify these Terms and Conditions at any time, in our sole discretion.
  9. Subject to eligibility and 1, 12 or 24 month minimum term.
  10. By entering the promotion, you are deemed to have accepted these terms and conditions.
  11. This promotion is governed by English law and subject to the exclusive jurisdiction of the English courts, unless you live in another part of the UK, in which case your local courts have jurisdiction.
  12. Standard Terms and Conditions apply. See website.
  13. Promoter: Currys Group Limited a company registered in England (registered number 504877) whose registered office address is 1 Portal Way, London W3 6RS, United Kingdom.