Three SIM cards

Power your world with a Three SIM card

Choose a Three SIM card and unlock a network built for data. Three was the first network in the UK to offer 3G and later, 4G, leading the way in mobile internet. These SIM cards are ideal if you are a younger user, a student or a data-heavy mobile user looking for large data allowances with various price points. Experience generous data plans, including unlimited data options that keep you connected without limits. Three’s strong 4G and growing 5G-ready availability in urban and suburban areas ensures fast speeds for all your streaming, browsing and social media needs.

Seamless connectivity with Three mobile plans

SIM-only plans from Three are for users who do not want to be tied into a phone contract. You will find brilliant roaming benefits, especially with Go Roam destinations, keeping you connected effortlessly when travelling internationally. Activation is simple and quick, and plan management is straightforward with easy top-up options via the Three app and website. Whether you need a Pay As You Go (PAYG) option, a monthly bundle or a dedicated Data SIM for your tablet or mobile hotspot device, Three provides a range of choices. Three SIMs offer wide compatibility with smartphones, tablets and other SIM-enabled devices.