eSIMNinja
Find my plan
Flag of United Kingdom

United Kingdom eSIM:
every plan, ranked by price per GB

We read every provider catalogue that sells here and sort on what a gigabyte actually costs, not the price on the box.

1,766 plans 45 providers from $0.43 best $0.07/GB Vodafone · T-Mobile

Prices re-read 10 September 2026 · how we rank

CHEAPEST ENTRY -5% ESIMADVICE5
$0.41 $0.43
200 MB (Unlimited)
Data 200 MB (Unlimited) Valid 1 Day 5G
ABestEsim hotspot ›
BEST VALUE PER GB -15% ESIMADVICE15
$56.71 $66.72
0.07 per GB
Data 1024 GB Valid 30 Days
RedEx eSIM ›
MOST DATA -15% ESIMADVICE15
$56.71 $66.72
0.07 per GB
Data 1024 GB Valid 30 Days
RedEx eSIM ›
BEST UNLIMITED -10% ESIMADVICE10
$0.45 $0.50
500 MB (Unlimited)
Data 500 MB (Unlimited) Valid 1 Day 5G
VoyaSIM ›

Which plan fits your trip?

A long weekend and a month away are not the same purchase. Pick the shape of the trip and the plan is already chosen.

See the full table
A LONG WEEKEND

1 to 5 days

Maps, ride-hailing and messaging, without paying for a month you will not use.

$17.99$19.99 Velo eSIM · 100 GB · 5 Days ABOUT TWO WEEKS

10 to 16 days, 10 GB+

Enough headroom to hotspot a laptop and still not think about it.

$31.49$34.99 Velo eSIM · 100 GB · 10 Days A MONTH OR MORE

28 days+, 20 GB+

Long validity for a slow stay. Prefer a plan that can be topped up.

$56.71$66.72 RedEx eSIM · 1024 GB · 30 Days NO CAP TO WATCH

Unlimited

For people who would rather not count gigabytes at all.

$0.45$0.50 VoyaSIM · 500 MB (Unlimited) · 1 Day
FILTER

1,766 plans tracked in United Kingdom · showing the 12 best per gigabyte

#PLANDATAVALIDITYNETWORKPROMO CODEPRICE
1 1024 GB · 30 Days RedEx eSIM 1024 GBdata 30 Daysvalidity —network $56.71 $66.72 0.07/GB Get plan
2 650 GB · 30 Days RedEx eSIM 650 GBdata 30 Daysvalidity —network $56.71 $66.72 0.10/GB Get plan
3 512 GB · 30 Days RedEx eSIM 512 GBdata 30 Daysvalidity —network $48.65 $57.24 0.11/GB Get plan
4 150 GB · 30 Days RedEx eSIM 150 GBdata 30 Daysvalidity —network $23.40 $27.53 0.18/GB Get plan
5 300 GB · 30 Days RedEx eSIM 300 GBdata 30 Daysvalidity —network $48.65 $57.24 0.19/GB Get plan
6 50 GB · 20 Days5G Stellar eSIM · top-up 50 GBdata 20 Daysvalidity 3G/4G/5Gnetwork $8.32 $9.79 0.20/GB Get plan
7 50 GB · 30 Days5G Stellar eSIM · top-up 50 GBdata 30 Daysvalidity 3G/4G/5Gnetwork $8.32 $9.79 0.20/GB Get plan
8 100 GB · 5 Days Velo eSIM 100 GBdata 5 Daysvalidity —network $17.99 $19.99 0.20/GB Get plan
9 120 GB · 30 Days RedEx eSIM 120 GBdata 30 Daysvalidity —network $23.40 $27.53 0.23/GB Get plan
10 20 GB · 30 Days5G Stellar eSIM · top-up 20 GBdata 30 Daysvalidity 3G/4G/5Gnetwork $4.15 $4.88 0.24/GB Get plan
11 500 MB (Unlimited) · 1 Day5G VoyaSIM 500 MB (Unlimited)data 1 Dayvalidity 4G/5Gnetwork $0.45 $0.50 fair use Get plan
12 Unlimited · 1 Day5G Stellar eSIM Unlimiteddata 1 Dayvalidity 3G/4G/5Gnetwork $0.75 $0.88 fair use Get plan
The bold price includes the code shown; the struck-through figure is the provider's list price. Unlimited plans sit outside the per-GB ranking, because dividing by an allowance that does not exist means nothing. Browse every plan

Providers selling in United Kingdom

45 of the providers we track sell here, ordered by their average price per gigabyte across this country's range.

Compare all providers
PROVIDERPLANSAVG $/GBFROMCODELAST READ
ABestEsim Best avg $/GB 87 $0.52 $0.43 ESIMADVICE5 −5% 9 Sep 2026
Stellar eSIM 37 $0.54 $0.65 ESIMTWEAKS −15% 5 Sep 2026
Bloomy eSIM 298 $0.75 $0.50 — 18 Aug 2026
SparkRoam 8 $0.77 $1.34 ESIMTWEAKS −5% 8 Sep 2026
MicroeSIM 53 $0.78 $0.84 ESIMADVICE −10% 25 Aug 2026
Always Mobile 8 $0.97 $2.25 ESIMTWEAKS −5% 27 Aug 2026
AeroSims 31 $0.98 $3.90 — 9 Sep 2026
RedEx eSIM 291 $0.99 $0.83 ESIMADVICE15 −15% 8 Sep 2026
SimSwift 158 $1.03 $1.49 — 8 Sep 2026
eSIM Agora 6 $1.05 $1.46 ESIMADVICE −10% 7 Sep 2026
Revo eSIM 6 $1.08 $1.69 ESIMADVICE −5% 1 Sep 2026
nadanada 8 $1.15 $1.99 ESIMTWEAKS −10% 5 Sep 2026

Mobile networks in United Kingdom

These are the local operators our providers name in their own plan descriptions. Which network a plan rides on matters more than the brand selling it.

NETWORKPROVIDERS THAT NAME ITPLANS MENTIONING IT5G SEEN
Vodafone 7 69 ✓
T-Mobile 2 37 ✓

Counted from the plan text itself. A plan often names more than one operator, so these figures overlap and are not a market share.

How to activate your United Kingdom eSIM

1

Buy the plan

Check out on the provider's own site. The QR code lands in your inbox within a few minutes.

2

Install on home wifi

Scan the QR before you fly. Installing is not activating, so nothing starts counting down yet.

3

Land in United Kingdom

Turn on data roaming for the eSIM line only, and leave your home line on for calls and one-time codes.

4

Check it attached

You should pick up a local network within a minute. If not, toggle airplane mode once.

GUIDE

What is the best eSIM for United Kingdom?

It depends on how long you are staying and how much data you get through, which is why we do not name a single winner. As of 10 September 2026 we track 1,766 United Kingdom plans from 45 providers. The cheapest entry price is $0.43 for 200 MB (Unlimited) over 1 Day from ABestEsim. The best value per gigabyte is $0.07/GB, on a 1024 GB plan from RedEx eSIM. Those two facts point at completely different travellers.

How these plans are compared

Each provider's live catalogue is read and normalised onto the same terms: price, allowance, validity, network tier and, where the provider states it, hotspot and top-up support. Everything with a fixed allowance is converted to a price per gigabyte so a 500 MB plan and a 100 GB plan can be compared on one axis. 677 of the 1,766 plans here carry a fixed allowance and a real term, so those are the ones the ranking uses.

Why unlimited plans are ranked separately

854 of the plans here are sold as unlimited, and almost all of them carry a fair-use cap in the small print. Dividing a price by an allowance that does not exist produces a number that means nothing, so they sit below the per-GB table with their own cap printed as the provider words it.

Picking by trip length

  • A few days. Buy small. Paying for thirty days of validity you will never use is the most common mistake on this page.
  • Two weeks. Ten to fifteen gigabytes suits most people, especially if you will hotspot a laptop.
  • A month or more. Look for top-up support rather than the biggest allowance. Extending a live plan usually beats buying a second one at full price.

Before you buy

  • Dial *#06# and look for an EID. No EID means the phone cannot take an eSIM, whatever the spec sheet says.
  • Confirm hotspot is permitted if you plan to share the connection. It is the restriction providers are quietest about.
  • 997 of these plans advertise 5G. On a short trip the real-world difference is smaller than the marketing suggests.
  • Apply the code before paying. Every code on this page is one we hold with that provider, and the price beside it already includes it.
⚡Instant activationA QR code within minutes of paying, on every provider here.
📱Works on your phoneiPhone, Samsung, Pixel and most flagships since 2020. Check yours
💳You pay the providerCheckout happens on their site. We never take card details.

United Kingdom eSIM questions

What is the cheapest eSIM for United Kingdom?

The cheapest entry price we track is $0.43 from ABestEsim for 200 MB (Unlimited) over 1 Day. That is the cheapest to buy, which is not the same as the best value.

What is the best value United Kingdom eSIM per GB?

$0.07/GB, on a 1024 GB plan valid 30 Days from RedEx eSIM. Price per gigabyte improves sharply with allowance size, which is why the largest plans sit at the top of the table.

How many providers sell United Kingdom eSIMs?

45 of the providers in our index currently list United Kingdom plans, 1,766 between them.

Are the unlimited plans really unlimited?

854 plans here are sold as unlimited, and nearly all carry a fair-use cap in the small print. Each one shows its cap as the provider words it, and they are ranked separately from the per-GB table.

Which network will I be on in United Kingdom?

The operators our providers name for United Kingdom are Vodafone, T-Mobile. Many plans name more than one and switch between them, and a plan that names none is not stated by its provider.

Do these promo codes work?

Every code shown is one we hold with that provider and re-test. The bold price beside it already includes the discount; the struck-through figure is the provider's own list price.

How long does activation take?

Usually minutes. Most providers email a QR code straight after payment. Install on wifi before you travel, because validity generally starts on first connection abroad rather than at purchase.

More destinations in Europe

Turkey1,670 Portugal1,424 Greece1,401 Spain1,389 Italy1,358 Switzerland1,355

Still not sure which to pick?

Four questions about your trip and the recommender shortlists plans, with the reasoning shown.

Use the recommender Work out my data