- Popular
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* Final prices in EUR. 4G/5G speed depends on the local network.
How much data do I need?
Recommended: ≈ 4 GB
1Choose a destination
Find a country or region and pick a plan that fits.
2Buy the eSIM
Pay your way and get the eSIM in your inbox.
3Activate and travel
Install in a couple of minutes and stay online on the trip.
eSIM United Kingdom: FAQ
1Do I need an eSIM for the UK?
With a US or Canadian plan, the UK is international roaming: US carriers usually charge a daily fee per line (AT&T International Day Pass, Verizon TravelPass), some T-Mobile plans include slower data abroad, and Canadian carriers charge a daily roaming fee. With an EU SIM, the UK has been outside EU roaming since Brexit, although some EU operators still include it; check your plan. The MonoEsim eSIM is one fixed prepaid data pack: install it at home and you are online when you land at Heathrow, Gatwick or Edinburgh.
2Which mobile networks are there in the UK?
Since Vodafone and Three merged on 31 May 2025, the UK has three network operators: VodafoneThree, EE (BT) and Virgin Media O2. The Vodafone and Three brands still exist. Coverage is good in cities and along main rail and road routes; the Scottish Highlands, the Lake District, rural Wales and small islands have gaps. The plan details on this page show which partner networks a pack uses.
3Does a UK eSIM work in Northern Ireland and the Republic of Ireland?
Northern Ireland is part of the UK and uses UK networks, so a UK pack usually covers it. The Republic of Ireland is a separate EU country with its own networks. If your trip includes both, check the plan's country list or choose a regional Europe pack that covers both.
4How much data do I need for London or a UK road trip?
As a guide, a week in London with maps, Tube and rail apps, WhatsApp and social media usually needs 3–5 GB. Two weeks touring Scotland or driving around the country with navigation and a hotspot is more comfortable with 10–20 GB. Download offline maps for the Highlands.
5Can I make calls with the eSIM in the UK?
The MonoEsim eSIM is data-only, without a UK number. Call over WhatsApp, FaceTime or Signal. On a dual-SIM phone your home number stays active for bank texts; turn off data roaming on that line to avoid daily fees.
6When should I install the eSIM for the UK?
Install it at home on Wi‑Fi a day or two before you fly and keep the line off until you land; validity usually starts with the first connection in the UK. After landing, switch it on, select it for mobile data and enable data roaming for it. If it does not work for technical reasons, MonoEsim support will find a solution or refund you.
7Which eSIM do I need for United Kingdom?
For United Kingdom, MonoEsim offers data packs from 1 GB to 50 GB valid for up to 30 days plus unlimited plans. For a one-week trip with maps, messengers and social media, 3–5 GB is usually enough.
8How much does mobile data in United Kingdom cost with an eSIM?
An eSIM for United Kingdom starts at $5.99 at MonoEsim. No contract and no hidden roaming fees — you only pay for the pack you choose.
9Does the eSIM work everywhere in United Kingdom?
Data in London, Edinburgh and on the road across Britain. The eSIM uses local partner networks with 4G and, depending on the area, 5G. In remote areas coverage can be weaker, as with any SIM.
10Do I need roaming in United Kingdom?
No. The MonoEsim eSIM uses a local network. Turn data roaming on for the eSIM line only and off for your regular SIM — so your home carrier charges no roaming fees.
