Unlock Savings with SMARTY’s Data Discount SIM: The Best Rollover Data Plans

Unlike other mobile networks, we knock money off your bill for data you haven’t used. And unlike data rollover plans, you won’t build up a pool of data that you’ll never use. Our data discount plans are perfect for people who don’t use all their data and want to save money every month.

The way it works is simple. The base cost of our data discount plans is £5, which covers unlimited standard calls, texts and running the network. The rest is simply for data. So we think it’s only fair to take the data you haven’t used and give you money back for it - at the same rate you bought it, £1 per GB.We even calculate using remaining MBs, not GBs.