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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.

Free Roaming in 71 Worldwide Countries.

Use your minutes, texts and data when you’re on holiday in one of the qualifying 71 countries. Whether you’re sending emails from the beach in Spain, or updating your Facebook status in the USA, you can carry on using your mobile like you’re at home.

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.


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, unless on the EE network. Promo codes cannot be used in conjunction with any other offer. Full Legals.

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