The best deals right now
Worked out automatically from every tariff we track. No paid placements.
Airalo in Portugal
Cheapest 10GB+ for 30 days in the 10 European countries we cover
Nomad in Thailand
Cheapest 10GB+ for 30 days outside Europe
Lyca Mobile 5GB
Lowest cost over 12 months of all 155 plans. Runs on EE.
iD Mobile 100GB
Cheapest 100GB+ plan over 12 months. 24-month plan.
Lyca Mobile unlimited data
Monthly rolling on the EE network.
Samsung Galaxy A17 5G
Cheapest phone we track with eSIM and 6 years of updates promised.
Let us do the maths
eSIM trip finder
Add one country or ten, with days in each. Get the cheapest plan, multi-country deals and your network's roaming cost.
Plan my tripSIM-only finder
155 tariffs on 16 networks. Filter by budget, data, contract, signal, 5G and eSIM.
Find a SIMPhone compare
70 current phones side by side, plus the real cost of owning one for two years.
Compare phonesData calculator
Slide in how you use your phone and see how much data you really need, at home and abroad.
Work it outDoes my phone do eSIM?
Type your model, get a straight yes or no, and how to set it up.
Check my phoneCompare UK networks
Customer scores, complaints, perks and every plan for all 16 networks.
See the league tableWhere are you heading?
Every plan from six eSIM providers, in pounds, plus what UK networks charge for roaming there.
Australia
From £3.01
Bulgaria
From £1.50
Canada
From £3.77
Croatia
From £3.01
Cyprus
From £3.01
Dominican Republic
From £3.77
Egypt
From £3.77
France
From £3.01
Germany
From £3.02
Greece
From £3.02
India
From £2.64
Italy
From £3.01
Japan
From £3.01
Mexico
From £3.77
Morocco
From £4.34
Netherlands
From £3.01
Portugal
From £3.01
Spain
From £3.01
Thailand
From £2.26
Turkey
From £3.01
United Arab Emirates
From £3.02
United States
From £3.01
Vietnam
From £3.01
A week in Turkey on your UK network
Turkey isn't in the EU, so most UK networks charge a daily fee there. Here's what 7 days of data costs, against the cheapest eSIM.
It's the same story in the USA, Egypt, Thailand and most of the world. Use the trip finder to see your exact saving, or check every network's roaming prices.
Three steps to cheaper mobile
Tell us what you need
Where you're going and for how long, or your budget and how much data you use.
We check every tariff
567+ plans compared in seconds, including top-ups, intro offers and roaming.
Buy direct
Go straight to the provider to buy. You pay their price, never more, and we show you any catches first.
The latest phones, compared
Straight answers, no jargon
What is an eSIM?
How they work, which phones have them and why they're cheaper abroad.
How to set up an eSIM
Step by step for iPhone, Samsung and Google Pixel.
Avoid roaming bill shock
The traps: ferries, Greek islands, North Cyprus and more.
Switch and keep your number
The free text codes that make switching take a day.
Honest comparison, done properly
- Every tariff, not just the ones that pay. Sorted by price and value, never by commission.
- Real trip costs. If you'd need two top-ups, we add them up for you.
- Your network compared. We show what EE, O2, Vodafone, Three and the rest would charge instead.
- Independent. A small site run from Weymouth, Dorset, that started years ago as Search 4 Mobiles. How we make money.
Common questions
What is a travel eSIM?
A digital SIM you download to your phone for cheap data abroad. You keep your UK SIM for calls and texts, and the eSIM handles your data.
Is an eSIM cheaper than roaming?
Usually, outside the EU. The big UK networks charge about £6 to £8 a day in places like Turkey, the USA and Egypt, while a week of eSIM data often costs under £10.
How does S4M make money?
Some links are affiliate links, so a provider may pay us if you buy. It never changes the order of our tables, which are always sorted by price or value.
Where do your prices come from?
From providers' own websites and data feeds. Every table shows the date we last checked, and we convert dollar prices to pounds at that day's exchange rate.