SMARTY is a SIM-only network that's built to be simple and honest.

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

Taking data rollover to a new level, we give a discount for any unused data off your next month. We calculate in MB's, not GB's, meaning you get exactly what's due.

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.