Your giffgaff SIM deal

giffgaff SIM Deal

Uses O2's Network

O2 logo
Unlimited5G data
£20.00 a month

No contract

Roam up to 5GB in 38 destinations

  • No annual price rise
  • No Credit Check

  • giffgaff operates on O2's network, which means you'll get 4G coverage over 99% of the country and 5G available in over 700 towns and cities.

  • giffgaff's average download speed on O2's network is 32.8Mbps. Based on Opensignal's network experience report (January 2026).

  • giffgaff offers inclusive roaming in 37 destinations in the EU and beyond.

  • Cost breakdown

    Your contract

    Monthly cost for 1 month (from 1 October 2026)

    £20.00

    Total cost

    £20.00

  • 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

  • No annual price rise

    Lock in your price with no annual rises for 2026.

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.