
Get the most out of your mobile phone plan with SMARTY. Sign up for a SMARTY mobile deal to get a free SIM card and start a rolling contract you can cancel at any time. If you love the flexibility of a pay as you go plan with the perks of a contract deal, you’ll love SMARTY.
You’ll be guaranteed 99% UK outdoor population coverage on a 4G network along with 12GB EU roaming. SMARTY SIM deals are perfect for money-savvy shoppers as well as students, with no contracts tying you down and no annual price rises on monthly plans.
Some of our favourite SMARTY perks include unlimited calls and texts, unrestricted tethering in the UK, fast 4G & 5G data, and no speed caps on your usage. As a commitment-free SIM plan, there are no credit checks required either, so it’s perfect for students, young people and those with limited credit history.
Change your plan or pause it for a month whenever you need to. You can even keep your old phone number when you buy a new SIM. If that’s not enough, we’ve got a whole list of ways to save even more money on SMARTY mobile plans.

Money-saving
We offer cashback deals when you sign up for a SMARTY plan. Cashback is a form of commission, so when you use our site as an extra step in your purchase, you get SMARTY cashback, just like that.
Refer your friends to SMARTY and you'll both get up to £20 in gift cards. The bigger the plan your pal chooses, the better the reward you both get when you use SMARTY's refer-a-friend scheme that benefits you both. There's no limit on the amount of friends you can refer, and all you'll need to do is share your unique referral link with friends to start reaping those rewards.
Take out a SMARTY group plan and you can manage up to eight SIMs all within one account and save 10% on each SIM that’s added. A SMARTY group plan is perfect for popping a household or family on one plan. Not only can you save 10% on each SIM that goes on the plan, but it’s great for mums and dads who want to monitor their kids’ phone usage. If you opt for a data discount plan, you’ll still benefit from money back on unused data too.
The SMARTY Social Tariff is their newest low-cost unlimited plan, available for both new and existing customers on eligible benefits. The eligibility checks are fast and don’t involve credit checks, there’s no commitment, and you’ll get all the perks like unlimited calls, texts, and data.
Love saving your pennies and the planet? SMARTY has joined forces with Reboxed, so if you’re looking at a Reboxed refurbished phone, you can get up to £30 off as a SMARTY customer. Refurbished phones are not only sustainable, but they’re around 40% cheaper than a new phone and still come with a 12-month warranty.
Sign up for emails and you’ll hear about the latest SMARTY deals, sales, and promotions. During the last Black Friday, they were offering a whopping 80GB for just £10!
On top of all of these ways to save, you can still earn cashback through our site. It’s free and easy to join, and you’ll be able to earn at thousands of other brands, too.
Like pay as you go, only better
SMARTY sim only deals work just like pay as you go, only you’re not locked into a pesky contract. Change or cancel your plan at any time. There are three different Smarty sim deals you can choose from, for ultimate freedom on the go.
Rolling monthly plans come with unlimited calls and texts, and you get to choose how much data you need. From 5GB a month all the way up to unlimited data, there are eight different options for you, so you’re only paying for what you know you’ll use.
Data only plans are exactly what they sound like. Why pay for calls and texts if you don’t use them, or prefer wifi-based communication? Choose from 2GB, 15GB, 40GB, 100GB, and unlimited monthly amounts with unrestricted UK hotspotting and EU roaming included.
Data discount plans are great for data minimalists (and money-savvy shoppers). There are three different tiers: 1GB, 2GB, and 3GB per month. The bonus is you’ll get money back for unused data, £1 per GB, instead of a rollover deal. So if you’re a low data user, this one’s for you.
It’s not just for mobile phones, either. SMARTY SIMs also work for tablets, dongles and WiFi routers, as long as you’re able to pop your SMARTY SIM card in, so you can stream away and enjoy Netflix, YouTube or whatever you want.

Get data add-ons
Pay a top-up on your data allowance for those one-off occasions when your plan doesn’t quite cover your usage.
You can get a data add-on to your package for particularly data-heavy months, without the need of paying for another plan or upping your monthly costs.
SMARTY is all about fair and low costs, so your data add-ons are priced at the same amount as your usual plan. The extra data you buy never runs out either, so as long as you’re an active paying member of SMARTY, you’ll be able to make use of your GBs when you need it.
Travel overseas & stay connected
All SMARTY sim deals come with EU Roaming benefits. You’ll get 12GB per month within a fair use limit (basically, you can’t live in the EU with this offer). You can also text and call within the EU or UK just like you do back home.
Even if you zap through the 12GB, you can easily buy add-ons or an EU Roaming Data pass to see you through your trip. If you’re hotspotting for a partner or group of people, this could work out pretty cheap.
If you’re travelling outside the EU, you’ll need to buy an out-of-plan add-on for data, calls and texts. This works as a pay as you go deal, and you’ll get back what you don’t use.
Tube travel fuss-free
Keep your commute smooth and seamless with free wifi when you travel on the London Underground. There’s nothing more annoying than a buffering video or interrupted song when you’re on your way home.
With SMARTY mobile network sister Three, you can rely on a connection that works even on the tube. Browse, stream, and play at 250+ stations, wherever you’re going – just please use headphones.
To connect for free, go to your wifi settings and select Three_WiFi SSID from the network options. Then choose AKA from the drop-down list and click ‘connect’. Easy peasy.

Download the SMARTY app
Check your usage, manage your account, refer friends and more with the mobile app from SMARTY.
SMARTY’s mobile app is available to download on your iOS or Android mobile device to make it easier to view your account and usage.
New SMARTY customers can activate their SIM via the app with just a few taps, as well as transfer an old number using a SMARTY PAC code.
Existing users can easily add data, track how much they’ve used so far, and explore other plans if you’re thinking of switching or upgrading.
All information, deals and offers mentioned within this content are correct at the time of writing.