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Traveler using a UK eSIM on Westminster Bridge, London
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Best eSIM for Cornwall, United Kingdom

Cornwall eSIM

Cornwall Council says coverage has improved but parts still have poor signal, and it commissioned a county-wide road survey to map patchy areas.
Network data: cornwall.gov.uk. Checked 3 Nov 2026.

  • EE5G
  • 34G

How long is your Cornwall trip?

Get my United Kingdom eSIM · $4.39
  • Apple Pay, Google Pay or card
  • One-tap install
  • Full refund if we can’t issue it

Your install link arrives the moment you pay, on screen and by email. Track your data in the free NUM app. If we can’t issue it, you get a full refund.

Coverage in United Kingdom: what to know

Opensignal's January 2026 report: EE led download and upload speeds and 5G coverage, while Three won time connected and 5G speeds. O2 won overall coverage experience. Both networks on our plans do well, EE generally ahead.

Checked 3 Nov 2026. Source: insights.opensignal.com. Coverage changes, so check your route before you rely on it.

The short answer

The best eSIM for United Kingdom is the one that fits your trip and your networks. For two weeks of photos, maps and social, NUM picks 5 GB for 30 days at $4.39, as of 4 Nov 2026.

Plans from$1.09 on 4 Nov 2026
Networks on local plansEE, 3 4G
7 days3 GB, 15 days, $2.99
14 days5 GB, 30 days, $4.39
30 days10 GB, 31 days, $6.29 (regional plan, 31 countries)
45+ days20 GB, 90 days, $20.29 (regional plan, 34 countries)
Phone numberNone, data only
PaymentApple Pay, Google Pay or card

A regional plan may list fewer networks here than a local plan. If you need a particular network, check that plan’s network list in the shop before you pay.

How it works

  1. Pick your trip

    Choose 7, 14 or 30 days. The shop picks the data for how you use your phone, and shows the networks.

  2. Pay in seconds

    Apple Pay, Google Pay or a card. Your install link arrives the moment you pay, and by email too. No account needed.

  3. Install, then land online

    Install at home on wifi with one tap, switch it on as the plane lands, and you’re online walking off. Your home number stays on for calls and codes.

United Kingdom eSIM for 7, 14 and 30 days

United Kingdom eSIM for 7 days

$2.99

3 GB, valid 15 days on EE. Enough for maps, rides, messages and photos for a week.

Choose 7 days

United Kingdom eSIM for 14 days

$4.39

5 GB, valid 30 days on EE. Room for social, photos and a few video calls over two weeks.

Choose 14 days

United Kingdom eSIM for 30 days

$6.29

10 GB, valid 31 days, a regional plan covering 31 countries. A month of everyday use, with some streaming and hotspot.

Choose 30 days

United Kingdom eSIM for longer trips

$20.29

20 GB, valid 90 days, a regional plan covering 34 countries. For long stays, remote work and heavy use.

Choose longer trips

NUM’s pick for each trip length on 4 Nov 2026, for photos, maps and social. Prices in US dollars; the price on the pay button is the price you pay.

How much data do you need in Cornwall?

Estimated data a day in Cornwall, by activityEstimated data a day: Maps and directions, 5–10 MB an hour, about 15 MB for 2 hours a day; Messages and browsing, 10–50 MB an hour, about 60 MB for 2 hours a day; Social feeds, 100–600 MB an hour, about 350 MB for 1 hour a day; Video calls home, 500 MB–1.5 GB an hour, about 500 MB for 0.5 hours a day; Streaming video, 300 MB–2 GB an hour, about 1000 MB for 1 hour a day.Maps and directions~15 MBMessages and browsing~60 MBSocial feeds~350 MBVideo calls home~500 MBStreaming video~1 GB
Estimates: two hours of maps and of messages, an hour of social, half an hour of video calls, an hour of video. Per-hour figures from esimcard.com; your phone and apps will differ.
Estimated data for a trip, by how you use your phone
How you use it7 days14 days30 days
Maps and messages1.4 GB2.8 GB6 GB
Plus social2.8 GB5.6 GB12 GB
Lots of video11 GB21 GB45 GB

Questions people ask about Cornwall

Is there mobile signal at Cornwall?

Cornwall Council says coverage has improved but parts still have poor signal, and it commissioned a county-wide road survey to map patchy areas.

How much does an eSIM for United Kingdom cost?

On 4 Nov 2026, United Kingdom plans started at $1.09 and went up to $78.99 for the biggest. The shop always shows today’s price, and the price on the pay button is the price you pay.

Which network works well in United Kingdom?

Opensignal's January 2026 report: EE led download and upload speeds and 5G coverage, while Three won time connected and 5G speeds. O2 won overall coverage experience. Both networks on our plans do well, EE generally ahead.

Why does my eSIM show another carrier’s name?

Many travel eSIMs are issued by one carrier and roam on local networks, so your phone can show the issuing carrier’s name while your data runs on a local network. Keep data roaming on for the eSIM.

Will it work on my phone?

Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.

When do I install it?

At home, on wifi, before you fly. Then switch it on when you land. Tell us your landing day and we text you the switch-on steps that morning.

Does it come with a phone number?

No. It’s a data-only eSIM. WhatsApp, LINE, iMessage and FaceTime all work over it, and your home number can stay on for calls and codes.

What if it doesn’t work?

If we can’t issue your eSIM, we refund you in full. If it won’t install or connect, text us and we help you get connected.

More of United Kingdom

United Kingdom eSIMfrom $1.09Get it