Sim Local partners with Three UK to offer incredible eSIM plans with generous data, calls, and texts across the UK. Plus, enjoy data roaming in over 70+ destinations, making it easy to stay connected while travelling.
Stay connected wherever your journey takes you with Sim Local & Three.

Three is one of the UK’s top mobile networks, providing high-speed data, reliable 5G coverage, international roaming, and affordable eSIM plans. With a Three UK eSIM from Sim Local, you can stay connected effortlessly, whether you're streaming, navigating, or keeping in touch at home or abroad.
✅ Unlimited Possibilities: Enjoy massive data allowances with unlimited calls and texts in the UK, plus data roaming in over 70 destinations - all at unbeatable rates.
✅ Fast 5G Speeds, Everywhere: Three UK provides strong coverage and unlimited 5G speeds, ensuring a smooth mobile experience across the UK and beyond.
✅ Switch Plans, Not SIM Cards: Get online in minutes with a Three UK eSIM from Sim Local—quick, easy, and digital.
✅ Roam Without Roaming Charges: Take advantage of Three’s generous international roaming options, helping you stay in touch without the stress of hefty roaming charges in over 70 destinations worldwide.
Yes. You can buy your Three UK eSIM online or in the Sim Local app, no shop visit needed. Pick a UK eSIM plan with data, calls and texts, or a global data plan if your trip covers more than one country. Activate it now, or whenever your trip starts.
Yes. Data roaming in 70+ destinations is included at no extra cost, so you can use your data abroad without roaming charges. Check each plan for the full list of countries before you travel.
Yes. Our Three UK eSIM plans connect to 5G where it’s available and to 4G everywhere else, from busy city centres to the quieter countryside. You’ll need a 5G-compatible phone to get 5G speeds.
It works with most eSIM-compatible smartphones, including recent iPhone, Samsung and Google Pixel models. Your phone also needs to be unlocked. Not sure? Use our compatibility checker before you buy.
Yes. You can share your data with your laptop, tablet or a travel buddy’s phone using your personal hotspot. Hotspot data counts toward your plan’s allowance.
Yes. Every Three eSIM plan from Sim Local is prepaid. You pay once and use your plan for 30 days (or 90 on the unlimited plan). No contract, and no monthly bill waiting for you at home.
Yes, our UK plans with calls and texts include a local UK number. That’s handy if you’re moving to the UK, studying here, or need to receive texts from a UK bank or landlord.
Yes. Choose unlimited data, calls and texts for 30 or 90 days. It’s a good fit for longer stays, remote work or anyone who streams a lot.
It depends on how long you’re staying and how much data you use. For a short trip, a 20 GB or 100 GB plan on Three’s 5G network covers maps, messaging and social media easily. If you’re staying longer, the unlimited plans give you more freedom.
Both are solid UK networks, so it comes down to where your trip takes you after the UK. If you’re travelling beyond Europe, eaither EE or Three UK eSIMs are a great fit. Data roaming in 70+ destinations is included, from the USA and Australia to Costa Rica and Brazil, at no extra cost. If you’re mostly staying in the UK, or only hopping over to Europe, an EE or a Three eSIM are a great fit, with plans that include EU roaming.
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