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Three SIM Card Benefits

Buy this Three SIM card and simply insert it into your device to start browsing the web, making calls and sending texts straight away. Our multi SIMs mean you can pop out the right size SIM card you need for your device, whatever model it is. Don't see the SIM card for you? Find our full range of SIM only deals on 6 networks this way.

5G: A Faster, Smoother and Better Experience.

5G is here on Three, bringing you incredible data speeds, a smoother experience when gaming and video calling, and a more reliable data connection in busy places like the football and festivals. Three has launched 5G in a load of busy towns and cities up and down the UK. See our Help Centre for the full list. Note: When you leave a 5G location, your 5G mobile will automatically switch to 4G or 3G, then back to 5G when it's available.

Use Your Phone on the London Underground.

With access to WiFi on the London Underground, you can continue using your phone on the commute, checking Facebook and replying to emails, rather than getting cut off as soon as head down the escalators.

Exclusive offers with Three+.

As a Three customer, you can download the Three+ customer loyalty app and enjoy exclusive offers on huge brands like Uber Eats, Cineworld and many more. Plus, music lovers can bag themselves pre-sale tickets to the UK's biggest festivals.

General

All pay monthly offers subject to security and credit check. Charges will apply for paper billing. Charges may also apply for non-Direct Debit payment. Promo codes cannot be used in conjunction with any other offer. Full Legals.

RPI+/CPI

Each year, your Pay Monthly airtime tariff will be adjusted according to a Fixed Annual Price Change (Three), RPI+ (O2) or Consumer Price Index (Vodafone) rate of inflation. Your bill will be adjusted in April by 4.5% (Three), or the rate announced in January (Vodafone) and February (O2) that year (plus 3.9% on O2, Vodafone).

Data Speeds

Advertised 4G and 5G speeds are available in selected areas. Exact speed depends on location and number of users. Check coverage using the link in the shopping basket before buying.

Cashback

Unless otherwise stated, cashback incentives are provided by ourselves and not the Network provider or third-party. Full details are in our T&Cs.

Products

All products bought on our website are provided by ourselves, not the network, and are subject to our full T&Cs.