Your Three Mobile SIM deal

  • Three's 4G service covers over 99% of UK homes, with 5G available in over 650 towns and cities.

  • Three's average download speed is 51.0Mbps. Based on Opensignal's network experience report (January 2026).

  • Check your contract to see if it's inclusive in your plan. Extra charges may apply.

  • Cost breakdown

    Your contract

    Monthly cost for 1 month (from 1 October 2026)

    £13.50

    Total cost

    £13.50

  • How are price rises calculated?

    Some providers set annual price rises to cover predicted changes in service costs. This is usually linked to inflation, but from January 2025 they have to tell you the exact amount upfront.

    In our breakdown, we've assumed your first bill will be next month, and your billing date falls after the date any price rises come into place.

  • Minutes and texts

    Minutes
    Unlimited
    Texts
    Unlimited

  • Three+ loyalty app

    A loyalty app for all customers that gives money off big brands - £1 coffees at Cafe Nero and £3 Cineworld tickets.

  • Truly Unlimited data

    There are no speed limits and no data caps with Three - just endless streaming, browsing, gaming and sharing in the UK.

Customers must purchase the deal directly from the retailer's website. Prices, plan names and offers all based on information received from suppliers. Deals and vouchers offered are subject to availability. Existing customers are not eligible to upgrade to these deals.