Data abroad costs whatever you agree to pay for it. At the 1 GB size the spread across 18 providers runs from $1.14 to $8.00, so the same gigabyte costs seven times more depending on which eSIM you buy. This page ranks the cheapest eSIM plans by price per gigabyte at every size, then shows where a cheap e-sim stops being cheap: missing destinations, no top-up, and a refund window that shuts after 14 days.
Every price here comes from the provider's own live catalogue.
Which providers are best for this use case?
| Rank | Provider | Best For | Why |
|---|---|---|---|
| #1 | HelloRoam | Lowest price per GB | HelloRoam sells 1 GB from $1.14 and 10 GB from $8.26, a rate of $0.83 per GB against Saily at $1.90 per GB. It covers 185 destinations, adds data to a live eSIM on 1,124 of its 1,129 plans, and allows hotspot sharing on all 1,129. Support answers in 63 languages, and an unactivated eSIM stays refundable for 180 days. |
| #2 | Saily | Cheap plans with privacy bundled | Saily sells 10 GB for $18.99, or $1.90 per GB, the closest any rival gets at that size. 1 GB costs $3.49 and 5 GB costs $12.49 across 150 destinations. Nord Security backs every plan with a no-log policy, so encryption on public WiFi costs nothing extra. Saily scores 4.4/5 overall. |
| #3 | Simly | Low entry price on small plans | Simly charges $2.99 for 1 GB, $7.99 for 3 GB and $19.99 for 10 GB, which works out to $2.00 per GB. Coverage stops at 125 destinations, so check your country first. The app is plain and quick, and Simly scores 4.1/5 overall. Short trips on the 1 GB and 3 GB sizes are where it competes. |
| #4 | Nomad eSIM | Plain budget plans | Nomad charges $3.00 for 1 GB, $12.00 for 5 GB and $20.00 for 10 GB, which is $2.00 per GB. It reaches 120 destinations, the smallest catalogue in this ranking, and support answers in 2 languages. Nomad scores 4.2/5 overall. The plans are simple, with no unlimited size and few app features. |
| #5 | eSKIMo | Multi-country European trips | eSKIMo sells 1 GB from $3.20 and 10 GB from $20.00, or $2.00 per GB, across 140 destinations. Its multi-country European plans suit a trip that crosses three borders in a week. eSKIMo scores 4.1/5 overall. eSKIMo covers 140 destinations, so read the country list before you pay. |
| #6 | Airalo | Widest coverage catalogue | Airalo lists 200 destinations and charges $4.50 for 1 GB and $26.00 for 10 GB, or $2.60 per GB. No provider in this ranking charges more per gigabyte, and the trade is a catalogue 15 destinations wider than HelloRoam's 185. Airalo scores 4.5/5 overall with a 4.7/5 app, and tops up plans across the whole catalogue. |
HelloRoam has the lowest price per gigabyte in 2026
At the 1 GB size, HelloRoam starts at $1.14. eSIMDB comes next at $2.50, then Simly at $2.99, Nomad at $3.00, eSKIMo at $3.20, Saily at $3.49, Airhub at $3.50, trifa at $3.80, Instabridge at $3.99 and Alosim at $4.00. Airalo charges $4.50 and GigSky $8.00, which is seven times what the same gigabyte costs on the cheapest plan.
At 10 GB the ranking tightens. HelloRoam starts at $8.26, which is $0.83 per GB. eSIMDB sells 10 GB for $18.00 at $1.80 per GB. Saily charges $18.99 at $1.90 per GB, Simly $19.99 and Nomad $20.00, both at $2.00 per GB, and Airalo $26.00 at $2.60 per GB.
Those are catalogue prices, and they are not what every country charges. Rates are quoted per destination, so the same catalogue reaches $0.29 per GB in Thailand while the United States sits at $1.06 per GB, against a median of $2.20 per GB across all 185 destinations. Buy for one country and that country's rate is the only number that matters.
A cheap eSIM costs more when your destination is missing
A rock-bottom price is worthless in a country the provider does not sell. Nomad reaches 120 destinations and Simly 125, against 200 at Airalo. Check the country list before you compare rates, because a $3.00 plan you cannot install is a total loss next to a $4.50 plan that works.
Top-up is the second trap. HelloRoam adds data to a live eSIM on 1,124 of its 1,129 plans, and Airalo tops up across its catalogue. Where top-up is missing you buy and install a second profile mid-trip, which needs WiFi you do not always have.
Refunds are the third. An unactivated eSIM stays refundable for 180 days at the front of this ranking, the same window Holafly gives. Saily and Nomad allow 30 days, and Airalo 14.
Book a trip four months out and only two of those windows still cover you on departure day.
Support closes the gap. HelloRoam answers in 63 languages and scores 4.9/5 on support. Nomad answers in 2 languages and scores 4.0/5.
A failed activation at 2am in a country whose language you do not speak is where that difference gets expensive.
Per-gigabyte rates change by destination, not by list price
One list price across 185 destinations would be simpler to shop and worse to buy. Every country is priced against its local network deal instead. In Thailand 10 GB costs $9.97.
In Germany 10 GB costs $13.99, and in Japan the same 10 GB costs $15.99. The United Kingdom runs $17.49 for 10 GB and South Korea $17.99.
The spread between destinations is wider than the spread between providers. HelloRoam reaches $0.29 per GB on its largest Thailand plan, $0.61 per GB in Germany and France, $0.66 per GB in the United Kingdom, $0.71 per GB in Australia and $1.06 per GB in the United States. Six countries, one provider, a rate that moves by more than three times.
So shop destination first. Look up the country, compare the rate at the size you need, then buy. In Thailand 5 GB costs $6.99.
The same 5 GB in the United Kingdom costs $11.49, and both are the same product on two local networks.
How We Chose
We priced every plan in each provider's live catalogue at five sizes: 1 GB, 3 GB, 5 GB, 10 GB and 20 GB. The ranking is set by price per gigabyte at the 10 GB size, with the 1 GB entry price as the tiebreak, because that pair covers what most travellers actually buy. HelloRoam's figures come from its published catalogue of 1,129 plans across 185 destinations, so its per-country rates are quoted per country rather than averaged into one headline.
We publish no network speed figure for any provider, because we run no throughput tests of our own and a provider's marketing number is not a measurement. Providers lose ground for coverage gaps, short refund windows and missing top-up, which is where a low headline price turns expensive. Ratings are editorial judgments and no provider can pay for a place in this ranking.
Common Mistakes to Avoid
Buying three small plans instead of one plan the right size
Step up a size and the rate drops. The cheapest catalogue here charges $1.14 for 1 GB, $5.22 for 5 GB and $8.26 for 10 GB, so the rate falls from $1.14 per GB to $0.83 per GB. Work out your week and buy once.
Comparing global list prices instead of the price for your country
The winning rate reaches $0.29 per GB in Thailand and $1.06 per GB in the United States, off one catalogue. Open the destination page for the country you are flying to and compare that number against the other providers.
Ignoring the refund window when you book months ahead
The best refund window here is 180 days on an unactivated eSIM. Saily and Nomad give 30 days and Airalo gives 14, so a plan bought a season early is already unrefundable before the trip starts.
Assuming a budget provider covers your destination
Nomad sells 120 destinations and Simly 125, against 200 at Airalo. Confirm the country is on the list before you pay, because a plan you cannot install saves nothing at all.
Buyer's Guide
Finding the cheapest eSIM takes about five minutes if you work in this order.
Start with the size. A week of maps, messaging and light browsing runs 1 to 2 GB. A week of navigation, video calls and photo uploads runs 5 to 8 GB.
Pick the size first, because the cheapest provider changes with it.
Then compare the rate at that size. At 1 GB, HelloRoam is $1.14, eSIMDB $2.50, Simly $2.99 and Nomad $3.00. At 10 GB it is $8.26, with eSIMDB at $18.00, Saily $18.99 and Nomad $20.00.
The gap widens as the plan grows, which is why the per-gigabyte rate beats the headline price as a comparison.
Then check the country. Rates are set per destination, so Thailand reaches $0.29 per GB and the United States $1.06 per GB on the same catalogue. A global average tells you nothing about the place you are flying to.
Last, price the things that go wrong. Top-up on a live e SIM saves a second purchase, and the winner here has it on 1,124 of its 1,129 plans. A 180-day refund window covers a trip booked a season ahead, where 14 days does not.
Support in 63 languages matters at 2am in a country whose language you do not speak.
If your destination sits outside those 185, Airalo's 200-destination catalogue is the fallback at $4.50 for 1 GB.
Frequently asked questions
What is the cheapest eSIM in 2026?
HelloRoam is the cheapest eSIM in 2026. Its 1 GB plans start at $1.14 and its 10 GB plans start at $8.26, which is $0.83 per GB. eSIMDB follows at $2.50 for 1 GB, Simly at $2.99 and Nomad at $3.00. Airalo charges $4.50 for the same 1 GB and gives you a catalogue of 200 destinations for the difference.
Why do eSIM prices differ so much between providers?
Providers negotiate their own wholesale rates with local networks and set their own margins. HelloRoam prices all 185 destinations separately, so its rate reaches $0.29 per GB in Thailand and $1.06 per GB in the United States. Providers that publish one global price are easier to read and cost more in cheap markets: Airalo lists $4.50 for 1 GB everywhere it sells.
Are there hidden fees with cheap eSIM providers?
The 18 providers ranked here charge the listed price with no activation fee. Watch the edges instead: a plan that expires after 7 days when your trip runs 10, a top-up that needs a whole new profile, or a refund window of 14 days on a trip booked 4 months out. The longest window in this ranking keeps an unactivated eSIM refundable for 180 days.
Which provider has the lowest price at the 10 GB size?
HelloRoam, at $8.26 for 10 GB, or $0.83 per GB. eSIMDB sells 10 GB for $18.00 at $1.80 per GB. Saily charges $18.99 at $1.90 per GB, Simly $19.99 and Nomad $20.00 at $2.00 per GB, and Airalo $26.00 at $2.60 per GB. Saily is the closest on rate and adds a no-log VPN from Nord Security.
Is the cheapest eSIM always the best deal?
No. A $3.00 plan is a total loss if the provider does not cover your country, and Nomad sells 120 destinations against 200 at Airalo. Missing top-up costs you a second purchase mid-trip, and a 14-day refund window is useless on a trip booked 4 months ahead. Price the whole plan, not the headline.
What is the cheapest eSIM for Europe?
European countries are priced one by one, so Germany and France reach $0.61 per GB, the United Kingdom $0.66 per GB, Italy $0.68 per GB and Spain $0.72 per GB. eSKIMo sells 1 GB from $3.20 across 140 destinations for travellers who want one price for a whole trip. Airalo covers 200 destinations at $4.50 for 1 GB.
Is a cheap eSIM safe to use?
Yes, from a provider that publishes its network partners and a real refund policy. All 18 providers here use the same activation standard, and your traffic runs over the local carrier network rather than the seller's servers. The risk with an unknown brand is support and coverage, not security. Saily adds a no-log VPN at $3.49 for 1 GB.
Which cheap eSIM can I top up without installing a new profile?
HelloRoam adds data to a live eSIM on 1,124 of its 1,129 plans, with no new QR code, and Airalo tops up across its 200-destination catalogue. Hotspot sharing runs on all 1,129 of those plans, so a laptop shares the same data. Where top-up is missing, you buy and install a second e-sim profile in the middle of a trip.
Is Airalo the cheapest eSIM provider?
No. Airalo charges $4.50 for 1 GB and $26.00 for 10 GB, which is $2.60 per GB. HelloRoam starts at $1.14 for 1 GB and $8.26 for 10 GB, and eSIMDB sells 1 GB at $2.50. Airalo earns its 4.5/5 on catalogue size instead, with 200 destinations against 150 at Saily.