Skip to content

Pay for the data you use, not the data you don’t.

SMARTY is a new SIM-only mobile network that’s built to be simple and honest. We take your unused data each month and turn it into a discount on your next bill.

Discount on unused data

How does the discount work?

£5 of any plan covers the costs of providing unlimited standard calls and texts and running the network. The rest is for data. At the end of each month we’ll take the value of the data you haven’t used, and provide you with a discount on your next plan, at a rate of £1.25 per GB. So, if you’ve got 3GB of unused data left at the end of a month we’ll give you £3.75 off when you get your next plan. And what’s more we calculate using remaining MBs, not GBs, meaning the discount you get is exactly what’s due.

Why choose SMARTY?

Don’t want to be tied in? Cancel anytime or change plans monthly.

No minimum contract, no credit checks and no surprises at the end of the month. Pay in advance and enjoy the flexibility.

Add-ons that are 100% transparent

If you run out of data an add-on will cost you £1.25 per GB - the same as it costs in your plan. Our add-ons never expire so long as you have a live plan.

Unlimited UK standard calls and texts - on all plans

Call your friends and family as much as you want. No catch.


Fast 4G network

SMARTY connects to 4G network wherever it can.

Check our coverage

No need to change your number

As soon as your SIM is activated you can port your number to SMARTY. You’ll just need a PAC code from your current network.

Adding data or credit

If you run out of data it’s £1.25 per GB - the same as it costs in your plan. To call an 084 or 087 number you can add credit in £5 increments. Add-ons never expire.

Find out more about add-ons

Contacting us

The SMARTY team are available to chat online 7 days a week, 8am to 8pm. Click on the little green chat icon in the bottom-right to start.

You can’t call abroad or premium numbers - yet.

We’re still getting international and premium calling ready. In the meantime, apps like Whatsapp are much more cost effective - only use data in your plan or over Wi-Fi.

Roaming’s not ready

We haven’t been able to enable roaming in time for our launch. We’re a UK-only network at the moment, but we’re working on it.