Check out our best SIM only deals here at Tesco Mobile. Whether you’re after SIM only deals with unlimited data or cheap SIM only deals, you’ll find the best SIM only contract for you. Choose the amount of data and contract length that you want, and get unlimited minutes and texts thrown in.
If you’re thinking about upgrading your handset later, explore our latest Apple iPhone deals, discover great value across our range of Google phones, or browse our popular Samsung Galaxy options to pair with your new SIM plan.
Fancy a pay as you go SIM instead of a SIM only contract? Then take a look at our pay as you go SIM deals
All our SIM-only plans including unlimited plans are subject to our Fair Usage Policy, which can be found here
Want to enjoy the freedom of streaming, video calling and more on your mobile phone without having to hunt for Wi-Fi or worry about running out of data? Then an unlimited data SIM could be just for you. Why not use our data calculator to check if unlimited data is what you need?
Looking for the best SIM only deals with roaming? Grab one of our pay monthly SIMs and you can enjoy no EU roaming fees. With Home From Home, you can take your UK data, minutes and texts with you to 48 destinations across the EU and beyond – at no extra cost. Whether you’re sharing pics in Paris or using maps in Madrid, you’ll stay connected. No setup, no stress, no scary bills – just roam like you’re at home.
Got a Clubcard? Then you can get your hands on some of our cheapest SIM only deals with Clubcard Prices. If you bag a SIM only contract for your mobile phone on a Clubcard Price deal, not only will you unlock instant savings, we’ll also freeze your basic monthly usage price for the length of your contract. Plus, you can collect Clubcard points and use Clubcard vouchers.
Don’t have a Clubcard yet? It’s free, quick and easy to join – and you’ll get a Clubcard number straight away. Join Clubcard
Want a SIM only contract for your business? Shop our business SIM only contract deals.
The SIM can be used by children, but the main Tesco Mobile account holder must be 18 or over. The main account holder for the Sway.ly subscription must also be 18 or over.
You can find the full terms and conditions on the Tesco Mobile website and Sway.ly’s terms page.
It is available across all channels: online, in Tesco Mobile stores, and via telesales.
This Child SIM-only plan is not eligible for Family Perks. By purchasing or using this plan, you confirm your acceptance of this exclusion as a condition of your contract.
Yes, you can transfer your existing number to Tesco Mobile when activating the SIM - Everything you need to know about switching.
Yes, the SIM is on a 30-day rolling contract, so you can cancel at any time. Terms and conditions apply.
Yes, Tesco Mobile offers a standard cooling-off period as per their general terms and conditions.
Yes, you can change plans after the trial ends or at any time during the rolling contract.
Only the main account holder (must be 18+) can make changes to the account.
Settings can be managed via Tesco Mobile’s self-serve options or by contacting customer support.
Yes, the main account holder earns Clubcard points on bill spend. Points can be redeemed for discounts on bills or used with Reward Partners (e.g., £5 Cineworld tickets, theme park discounts, Pizza Express offers).
You can check your Clubcard account online or via the Tesco Clubcard app.
Tesco Mobile has partnered with Sway.ly which is an AI-powered app that monitors social media activity across devices, alerts parents to harmful content, and encourages positive online habits.
The Sway.ly app monitors social media feeds (Instagram, TikTok, YouTube) across all devices, sends alerts for harmful content, and promotes better online habits. It works on both mobile data and Wi-Fi.
Yes, a 3-month free trial of the Sway.ly Family Plan is included.
You can download it from the Apple App Store or Google Play Store. A compatible device (iOS 15.1 or Android 14+) is required. You should receive an email invite from Sway.ly in 24-48 hrs after purchasing your child SIM. This will contain your unique tesco free trial link and how to register with Sway.ly.
Yes, a payment method may be required at signup, but you will not be charged for the initial 3 months free trial period.
Unless cancelled, the subscription continues at £4.99/month for up to 9 months.
You can cancel your subscription through the Sway.ly app in the “Manage Subscription” section or by emailing swaycares@sway.ly before your trial ends. Sway.ly will send reminder emails 14, 7, and 1 day before your trial expires, giving you plenty of notice.
No long-term contract, but charges will apply monthly unless you cancel.
You will lose access to the exclusive Tesco Mobile customer 3 month free and £4.99 p/m offer pricing if the Sway.ly subscription is cancelled. Refer to Sway.ly’s terms for full details.
For questions related to your contract, you can contact Tesco Mobile customer service via their website, phone, or in-store. For any question related to the Sway.ly app, please contact them at support@sway.ly or contact 0203 916 5626
Contact Tesco Mobile customer service to report the loss and request a replacement.
Visit Sway.ly’s support page at https://www.sway.ly/contact or contact their customer service directly Sway Team - support@sway.ly or number 0203 916 5626.
Sway.ly provides support through their website and app. To activate your free trial, sign up for Sway.ly using the same email address you used with Tesco. You’ll receive an email invitation from Sway.ly within 24–48 hours after purchasing your child SIM. This email will include your unique Tesco free trial link and instructions on how to register with Sway.ly.
With this deal, you’ll collect an extra 300 Clubcard points in any billing month when you spend £50 or more on your Tesco shop in one go (and use your Tesco Clubcard) in a Tesco store or on Tesco.com during your 12-month SIM only contract (minimum contract period). That’s up to 3,600 extra points in total – worth £36.
Even better, these extra points are on top of the usual points you already collect when using your Clubcard on your Tesco shop – 1 point for every £1 spent.
Just make sure to link your Clubcard to your Tesco Mobile account using the Tesco Mobile app. Here’s what to do once you’ve popped your new SIM into your phone:
A billing month runs from your bill date (the day you get your bill) to the day before your next bill date – it’s not a calendar month.
When you take out this deal, we give you a payment date (the day we take your payment), but you can change this if you like. The payment date you choose sets your bill date.
Nope! You’ll collect an extra 300 Clubcard points in any billing month when you spend £50 or more on your Tesco shop in one go (and use your Clubcard) in a Tesco store or on Tesco.com during your 12-month SIM only contract (minimum contract period) – but it does not have to be every month.
If you do not spend £50 or more on your Tesco shop in a billing month, you just will not collect the extra points for that month.
A Tesco shop includes any purchases in a Tesco store or on Tesco.com, apart from the following (as explained in the terms and conditions):
Sure! You can upgrade to this deal through any of our usual ways.
If you collect the extra Clubcard points in your first billing month, you’ll get them within 4–6 weeks of taking out the deal. For any future months you collect the extra points, you’ll get them within a week of paying your bill.
Sometimes it may take a bit longer to get the extra points, so please allow a few days. If you still have not got them after this, please get in touch with the Clubcard team for help.
You can see the extra Clubcard points in My Clubcard Account or the Tesco Grocery & Clubcard app. You cannot see them in the Tesco Mobile app.
With this deal, you’ll collect an extra 250 Clubcard points in any billing month when you spend £30 or more on fuel in one go (and scan your Clubcard) at Tesco Petrol Filling Stations during your 12-month SIM only contract (minimum contract period). That’s up to 3,000 extra points in total – worth £30.
Even better, these extra points are on top of the usual points you already collect when buying fuel at Tesco Petrol Filling Stations – 1 point for every 2 litres.
Just make sure to link your Clubcard to your Tesco Mobile account using the Tesco Mobile app. Here’s how:
A billing month runs from your bill date (the day you get your bill) to the day before your next bill date – it’s not a calendar month.
When you take out this deal, we give you a payment date (the day we take your payment), but you can change this if you like. The payment date you choose sets your bill date.
That’s right – you have to spend £30 or more on fuel in one go. It cannot be split across multiple purchases.
Nope! You’ll collect an extra 250 Clubcard points in any billing month when you spend £30 or more on fuel in one go (and scan your Clubcard) at Tesco Petrol Filling Stations during your 12-month SIM only contract (minimum contract period) — but it does not have to be every month.
If you do not spend £30 or more on fuel in a billing month, you just will not collect the extra points for that month.
It has to be at a Tesco Petrol Filling Station (there are over 600 across the UK), and you have to scan your Clubcard too.
It can be any unleaded or diesel fuel from a Tesco Petrol Filling Station.
Sorry, electric vehicle charging does not count.
The Clubcard number you give when you take out this deal – the one linked to your Tesco Mobile account – is the only Clubcard you can collect the extra points on.
Sure! You can upgrade to this deal through any of ourusual ways.
Sorry, this deal is not available on Tesco Mobile for Business accounts.
If you collect the extra Clubcard points in your first billing month, you’ll get them within 4–6 weeks of taking out the deal. For any future months you collect the extra points, you’ll get them within a week of paying your bill.
Sometimes it may take a bit longer to get the extra points, so please allow a few days. If you still have not got them after this, please get in touch with the Clubcard team for help.
You can see the extra Clubcard points in My Clubcard Account or the Tesco Grocery & Clubcard app. You cannot see them in the Tesco Mobile app.
Once your 12-month SIM only contract (minimum contract period) ends or you leave Tesco Mobile, you’ll no longer collect an extra 250 Clubcard points in any billing month when you spend £30 or more on fuel in one go (and scan your Clubcard) at Tesco Petrol Filling Stations.
A SIM only deal gives you a SIM card with a set allowance of data, minutes and texts, with no mobile phone included. You can get a pay monthly SIM only deal (SIM only contract) or a pay as you go SIM. Our SIM only contracts come with unlimited minutes and texts, and you can choose the amount of data and contract length you want (12 or 24 months), compare our best SIM only deals today.
SIM only means a deal where you get a SIM card with a set allowance of data, minutes and texts, with no mobile phone included. You can go for a pay monthly SIM (SIM only contract) or a pay as you go SIM.
When you take out one of our SIM only contracts, we’ll send you your SIM via Royal Mail Tracked 24 post. You can then put your new SIM in your mobile phone and start using your data, minutes and texts allowances.
When you order one of our free pay as you go SIMs, we’ll send this to you via Royal Mail 1st Class post. You can then put this in your phone and add a Rocket Pack of your choice, to get your data, minutes and texts for the month.
When your SIM only contract ends, if you do nothing, your SIM only plan will continue on a rolling monthly basis, and you’ll be able to keep using your usual data, minutes and texts allowances. You can also choose to upgrade to a new plan or cancel your plan.
You can keep your number when you take out a SIM only deal.
If you’re switching to us from another network, you’ll need to get a PAC code and give this to us when you join. For more info, please go to our ‘Switch to Tesco Mobile’ page.
If you’re already with us, please select ‘Existing customer’ when you take out your deal online, then follow the steps.
Offering the reassurance of frozen prices has always been important to us. So, if you take out one of our exclusive Clubcard Price deals, you won’t need to worry about mid-contract price increases – because we promise to freeze your monthly price for the length of your minimum contract period.
An annual increase to this price each April will only apply once your minimum contract period ends.
See all our Clubcard Price deals
If you take out a non-Clubcard Price deal, your basic monthly usage price or basic monthly price (depending on your contract type) will receive an annual increase each April. These future price increases will be shown in pounds (£) and pence (p) at the point of sale, for your minimum contract period.
The 3G network has now been withdrawn across the UK. You may still see a 3G signal in some places for a short period in early 2026, but the network will soon be switched off.
You can use our handy 4G Calling tool to see if your phone is compatible. Simply follow the link, then enter the manufacturer and model of your device.
This tool will also give you exact instructions for how to turn on 4G Calling (also known as VoLTE). The process varies for different phones, but it’s easy and won’t take long.
The 3G network has now been withdrawn across the UK. You may still see a 3G signal in some places for a short period in early 2026, but the network will soon be switched off. There will be no impact to calling emergency services as these calls use the 2G network which will remain in service.
Need a new phone so that you’re ready for the switch-off? We have great deals on a wide range of compatible 4G and 5G handsets.
You have a 14-day cooling off period to change your mind. See our Returns Policy for full details and exclusions.
Please see all the details of our Fair Usage Policy.