Short answer
A UK eSIM gets you online as you land at Heathrow, Gatwick or Manchester, with no shop visit. Coverage is strong in cities and along major rail lines. 1 GB per day is enough for maps, transport apps and messaging for most visitors.
Live prices for United Kingdom
These plans and prices come straight from our catalog and update automatically.
3 GB
15 days
- Speed: 3G/4G/5G
- Hotspot supported
- Top-up available
$3.99
$1.33/GB
10 GB
30 days
- Speed: 3G/4G/5G
- Hotspot supported
- Top-up available
$6.99
$0.70/GB
100 MB
7 days
- Speed: 3G/4G/5G
- Hotspot supported
- Top-up available
$1.99
500 MB/day
Choose days
- Unlimited: 512 Kbps after daily data
- Speed: 3G/4G/5G
- Hotspot supported
$1.99 for 1 day
Lower price per day on longer trips
Coverage in the UK
The UK's networks are EE, Vodafone, O2 and Three. Cities and motorways have strong 4G and growing 5G; the plan card shows which partner network each plan uses.
Mobile coverage is being rolled out across the London Underground, and many central stations and tunnels now have signal, but some sections still don't. The Scottish Highlands and parts of Wales have weaker rural coverage.
How much data for the UK?
- London weekend: 2–3 GB.
- One week across London, Oxford and Edinburgh: 5–10 GB.
- Streaming, video calls or laptop hotspot: 20 GB or an unlimited day pass.
Getting around
- Tap a contactless bank card or your phone's wallet on the Tube, buses and many trains; no Oyster card needed.
- Citymapper and Google Maps cover London transport in real time.
- Book rail tickets in apps such as Trainline and keep the e-ticket on your phone.
Frequently asked questions
Does the eSIM work on the London Underground?
In stations and tunnel sections that have mobile coverage, yes. Coverage is expanding but not yet complete across the network.
Do I need a UK number?
Most visitors don't. The eSIM is data-only; you keep your own number on your home SIM.
Can I use it in Ireland too?
A UK plan covers the United Kingdom. For trips to both, choose a Europe or 'Ireland and UK' regional plan.
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