UK eSIM Plans

Shop prepaid UK eSIM plans for London, Manchester, Edinburgh and nationwide travel. Instant QR by email, guest checkout, and data options from light city breaks to unlimited when listed.

Plans from £3.55 · 12 plans available

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UK eSIM Plans for Travellers

A United Kingdom eSIM is prepaid mobile data on a compatible unlocked phone. You do not need a high-street SIM at Heathrow, Manchester or Edinburgh. Choose a plan above, complete guest checkout on RoameSIM, and receive your QR by email. Install on Wi-Fi, then use the travel line for data when you arrive.

For a longer buying guide, read best eSIM for the UK. If your trip also includes France, Spain or other EU countries, compare a Europe eSIM and check whether that plan lists the United Kingdom. For UK-only trips, stay here for live UK data plans.

Why Use an eSIM in the United Kingdom?

Buy a prepaid plan before you travel.
Skip physical SIM swaps and airport queues.
Use TfL, train apps and maps after you enable the travel line.
Avoid surprise home-carrier roaming charges with clear prepaid pricing.
On dual-SIM phones, keep your usual number for WhatsApp and OTPs. Use the UK line for data.

Unlimited eSIM for the UK

This page currently lists unlimited UK eSIM options alongside fixed-data packages. Unlimited suits heavier browsing, video and hotspot. Fixed GB plans often cost less for a short London stay. Open each plan card for validity (for example 7, 15 or 30 days) and terms. Fair-use or daily high-speed caps can apply, so treat the card as the source of truth.

UK eSIM Coverage

Current RoameSIM UK plans on this page show connectivity via EE (4G / 5G) . Cities and main rail lines are usually strongest. Highlands, some rural Wales and parts of Northern Ireland can vary like any mobile network.

Looking for 5G badges, larger allowances or longer validity? Use the labels on the plan cards above.

Using an eSIM in London, Manchester and Edinburgh

For city breaks in London, Manchester, Edinburgh, Birmingham or Bristol, install before you fly so maps and tickets work after landing. Set the UK line for mobile data and enable data roaming on that line once you arrive. We do not guarantee coverage in every Tube tunnel or neighbourhood.

UK, Ireland and Europe regional plans

UK plans on this page are for the United Kingdom. The Republic of Ireland is a different country. Do not assume a UK eSIM covers Dublin. After Brexit, a Europe travel eSIM may or may not list the United Kingdom. Read the country list on that plan card before you pay. If you are buying from Turkey, checkout still opens here.

How Much Data Do You Need in the UK?

Maps and messaging: lighter GB plans can cover a short city break.
Photos and trains: mid-size plans suit many week-long trips.
Video and hotspot: streaming or a laptop needs larger allowances or unlimited when listed.
Remote work: prefer higher GB and confirm hotspot on the plan page.

More detail: how much data do I need to travel. Groups and agencies: bulk eSIM for groups.

How to Install Your UK eSIM

Buy a plan and open the QR email on Wi-Fi.
Add the eSIM on iPhone or Android. Keep the travel line off until you land.
In the United Kingdom, turn the line on, select it for mobile data, and enable data roaming on that line.

Guides: install eSIM on iPhone, install eSIM on Android, or the AI Installation Assistant (purple button on this page).

When Should You Install Your UK eSIM?

Install on stable Wi-Fi before departure so you are not dependent on airport Wi-Fi. Keep the travel line off until you land, then enable it with data roaming. When data usage actually starts can depend on the package and network registration, so follow the order email and the plan card.

UK eSIM Troubleshooting

If the eSIM is installed but you have no internet, confirm the UK line is selected for mobile data, turn data roaming on for that line, check any APN notes in your order email, then restart or toggle airplane mode. Full checklist: eSIM not working troubleshooting and eSIM installed but no internet. Need help? Email info@roamesim.io with your order reference.

Frequently asked questions

A UK eSIM is a digital SIM for a compatible unlocked phone. You buy prepaid mobile data online, receive a QR code by email, and connect in the United Kingdom without swapping a physical SIM.

Yes. Purchase and install on Wi-Fi before you fly, then enable the travel line and data roaming when you arrive in the United Kingdom.

RoameSIM UK plans are sold as national packages and are intended for use across the United Kingdom, including London. Confirm details on the plan card before checkout.

Yes for national UK plans listed on this page. Use the travel eSIM for mobile data in Edinburgh after you enable the line and data roaming.

National UK plans on this page are intended for the United Kingdom, including Manchester. Verify the plan card before you buy.

No. The Republic of Ireland is a different country. Buy an Ireland plan or a regional plan that lists Ireland if Dublin is on your route.

Not always. After Brexit, some Europe regional plans list the United Kingdom and some do not. Read the country list on the Europe plan card, or buy a UK-only plan on this page.

When unlimited UK plans appear in the list above, you can choose them like any other package. Check validity days and terms on each card, as fair-use rules can apply.

Install on Wi-Fi before travel. Keep the line off until you land, then turn it on, set it for mobile data, and enable data roaming. Exact start-of-use timing can depend on the package.

Yes. Travel eSIMs usually need Data Roaming on for the eSIM line (not your home SIM) so the phone can use partner networks in the United Kingdom.

Yes on dual-SIM phones. Keep your home line for WhatsApp and OTPs, and use the UK eSIM for mobile data.

Many data plans support personal hotspot, but it depends on the package. Check the plan page or contact support if you need to tether.