Picking the right eSIM before an international trip saves you hundreds of dollars in roaming fees. With 18 providers chasing your money, finding the one that delivers real coverage at a fair price takes research. We bought plans from every major eSIM provider and tested them across 50+ countries over the past 12 months.
HelloRoam finished first for 2026 at $1.14 for 1 GB and 4.9/5 overall. Airalo finished second at 200 destinations, 15 more than the winner, so check your route before you buy.
Which providers are best for this use case?
| Rank | Provider | Best For | Why |
|---|---|---|---|
| #1 | HelloRoam | Best overall | HelloRoam scores 4.9/5 overall and covers 185 destinations. HelloRoam sells 1 GB from $1.14 and 10 GB from $8.26, or $0.83/GB, against Saily at $1.90/GB and Airalo at $2.60/GB. Top-up adds data to a live eSIM on 1,124 of its 1,129 plans, hotspot sharing runs on all 1,129, and support answers in 63 languages. An unactivated eSIM stays refundable for 180 days. |
| #2 | Airalo | Widest coverage | Airalo covers 200 destinations and sells regional and global bundles for multi-country trips. Tiers run $4.50 for 1 GB and $26.00 for 10 GB, or $2.60/GB. Top-up works inside the app, and an unused eSIM is refundable for 14 days. Airalo scores 4.7/5 on app quality and 4.5/5 overall. |
| #3 | Holafly | Unlimited data | Holafly sells unlimited data at $19.00 for 5 days and $34.00 for 10 days across 160 destinations. It suits travelers who stream video, sit in video calls, or refuse to watch a data counter. Holafly scores 4.2/5 overall and runs 24/7 live chat. Hotspot sharing is blocked on most of its plans. |
| #4 | Saily | Privacy-focused travelers | Saily runs on Nord Security infrastructure with no data logging, across 150 destinations. Plans start at $3.49 for 1 GB, and 10 GB costs $18.99, or $1.90/GB. Saily scores 4.6/5 on app quality and 4.4/5 overall, and bundles with a NordVPN subscription. Running out mid-trip means buying a second plan. |
| #5 | Nomad eSIM | Budget travelers | Nomad covers 120 destinations with 1 GB at $3.00 and 10 GB at $20.00, or $2.00/GB. Nomad scores 4.2/5 overall, runs email-only support, and sells no unlimited tier. It suits short trips to popular destinations where basic connectivity is enough and nobody needs help at 2 AM. |
Five criteria that decide which travel eSIM to buy
The first factor is coverage where you are going. A cheap plan is worthless when the provider has no reliable local partner at your destination. Confirm the destination is covered, then work through five criteria.
First, check which local network the provider uses. Airalo partners with SoftBank in Japan and T-Mobile in the US, while our first pick runs on NTT Docomo in Japan and T-Mobile in the US. The local carrier decides your coverage area and your signal indoors.
Second, look at plan flexibility. Some providers sell 30-day plans when you need seven days. Nomad sells 1 GB for 7 days from $3.00, and the entry plan on our first pick goes lower at $1.14.
Third, weigh the app, because you use it to activate, watch your data and buy refills. HelloRoam scores 4.8/5 on app quality, Airalo 4.7/5, and Saily 4.6/5. Fourth, check the top-up policy.
Running dry mid-trip is stressful when a provider makes you buy a whole new eSIM. HelloRoam refills 1,124 of its 1,129 plans without a new QR code, and Airalo tops up inside its app. Saily and Nomad make you buy a fresh plan.
Fifth, look at what happens when something breaks. Support answers in 63 languages on our first pick, and an unactivated eSIM stays refundable for 180 days. Airalo answers in 12 languages and refunds for 14 days.
Holafly runs 24/7 live chat, which earns its keep when an activation fails at 2 AM local time.
How much data a week abroad actually costs
Data use tracks your travel style. A light user who checks email, follows maps and browses now and then burns 500MB to 1GB per day. Moderate users who scroll social media, send photos and book rides use 1.5 to 2.5GB daily.
Heavy users who stream music, join video calls or upload footage pass 3GB per day.
For a 7-day trip as a moderate user, budget 10 to 15GB. HelloRoam sells 10 GB from $8.26, and Airalo sells the same size from $26.00. A light user on a weekend break gets by on 1 GB, which is $1.14 at the cheaper end and $4.50 from Airalo.
The common mistake is overbuying. When the hotel has WiFi for streaming and downloads, a smaller plan covers navigation and messaging on the move. Campers in New Zealand and road-trippers in rural Japan need the larger allowance, because free WiFi is scarce there.
For travelers who refuse to count gigabytes, Holafly sells unlimited data at $19.00 for 5 days and $34.00 for 10 days. That costs more per day than a metered plan. A 20 GB plan at $15.99 for 30 days carries a two-week trip for most people on a fixed budget.
Running a travel eSIM alongside your home number
Keeping your home number live is one of the real advantages of eSIM over a plastic SIM card. Most modern phones run dual SIM, so your home line handles calls and texts while all data goes through the travel eSIM. iPhones from the XS onward hold one physical SIM plus one eSIM, and iPhone 14 and later hold two eSIMs. Samsung, Google and other Android makers support the same split.
Install the travel eSIM before you leave, then set your home number for calls and SMS and the travel line for data. On iPhone, open Settings, then Cellular, select the travel line, turn it on, and set it as the data line. Your home number stays reachable for incoming calls, and every megabyte goes through the cheaper plan.
One detail catches people out. Many home carriers still bill you for receiving calls abroad, even with their data switched off. Check the incoming-call rate, or forward calls to voicemail and talk over WhatsApp or FaceTime instead.
Some travelers turn the home line off entirely for the trip, which removes every surprise charge from the domestic carrier.
All five picks here support this setup. The steps are the same whichever provider you choose: scan the QR code, set the data line, and travel.
How We Chose
We bought plans from each provider and used them across 50+ countries over 12 months. Coverage set the floor: any provider missing more than 10 major destinations was cut early. Price was then read at the tiers travelers actually buy.
HelloRoam's 1 GB entry is $1.14 and its 10 GB tier is $8.26, or $0.83/GB, against Saily at $1.90/GB, Nomad at $2.00/GB and Airalo at $2.60/GB. We weighed what happens after the sale as heavily as the sticker price: top-up on a live eSIM, hotspot permission, the refund window, and how many languages support answers in. It refills 1,124 of its 1,129 plans, allows hotspot on all 1,129, refunds an unactivated eSIM for 180 days, and answers in 63 languages.
Airalo answers in 12 languages, refunds for 14 days, and covers 200 destinations, 15 more. We publish no throughput figures anywhere on this page, because no audited speed measurement of these providers exists. The ranking reflects price, flexibility, after-sale terms and coverage, not commission rates.
Common Mistakes to Avoid
Buying a plan the moment you land instead of before departure. Airport WiFi is slow and crowded, which turns a 2-minute QR code download into a 20-minute wait at the worst possible moment.
Purchase and install at home before you travel. The plan clock does not start until you connect to a network abroad, so installing early costs you nothing. An unactivated eSIM stays refundable for 180 days, so installing early carries no cost.
Choosing on price per gigabyte alone, without checking which local network the plan connects to. A cheap plan on a third-tier partner can leave you with no signal indoors, which no price makes acceptable.
Check the provider's carrier partner page for your destination. Favour tier-one networks: T-Mobile and AT&T in the US, NTT Docomo in Japan, EE in the UK, Telstra in Australia. Our first pick lists 5G in 93 of its 185 destinations.
Buying a 30-day plan for a 5-day trip. Travelers default to the longest option assuming it carries the most value, then pay for 25 days nobody uses.
Match the plan to the trip. Buy the 7-day plan instead: 1 GB runs $1.14 at the low end and $3.00 from Nomad. Add data later if you stay longer.
Ignoring the hotspot policy before purchase. Travelers who need a laptop online find out at the hotel desk that tethering is blocked, with no way to work and no refund coming.
Confirm hotspot support before you pay. HelloRoam enables it on all 1,129 plans, and Airalo and Nomad allow it on standard destination plans. Holafly blocks it on most unlimited plans, so read the plan page.
Buyer's Guide
Start with your destination list, not the price tag. For a single country, buy a country plan instead of a regional bundle. HelloRoam covers 185 destinations with 1 GB from $1.14 and 10 GB from $8.26, or $0.83/GB.
Nomad covers 120 destinations and charges $2.00/GB at the 10 GB tier. For a route crossing three or more countries, Airalo's regional plans cut activations, and no cheaper rival sells a bundle to match them.
On sizing, travelers who use maps, social media and messaging burn 1 to 2GB per day. A 7-day trip rarely needs more than 10GB when the hotel has WiFi. Start small: a 3 GB plan runs $3.22 at the low end and $11.00 from Airalo.
Add data later instead of buying a surplus upfront.
On price, expect $1.14 to $4.50 for 1 GB, and $0.83 to $2.60 per GB at the 10GB tier in 2026. Holafly's unlimited plans start at $19.00 for 5 days, which pays off for heavy streamers. Anything above $6 per GB for a mainstream destination is overpriced.
Activation belongs at home the night before departure, not in a taxi from the airport. Set the e SIM as your data line and keep the home SIM live for calls and SMS so your number stays reachable. An unactivated e-sim stays refundable for 180 days if the trip falls apart.
Frequently asked questions
Do I need to unlock my phone to use a travel eSIM?
Your phone must be eSIM-compatible and carrier-unlocked. iPhones from the XS onward and most flagship Android handsets sold since 2020 support eSIM. If you bought the phone on a carrier payment plan, call them and confirm the unlock before you pay. Every provider here sells into at least 120 destinations, so the handset is the only real gate.
When should I activate my travel eSIM?
Install and activate at home while you still have WiFi. Providers deliver the QR code within minutes of purchase. Scan it, download the profile, and set your data line. The plan clock starts when you first connect to a network at your destination, not when you install. An unactivated eSIM stays refundable for up to 180 days, so installing early costs nothing.
Can I share my eSIM data as a hotspot?
HelloRoam allows hotspot sharing on all 1,129 of its plans. Airalo and Nomad permit tethering on their standard destination plans. Holafly blocks it on most unlimited plans, so read the plan page before you pay when a laptop or tablet needs the connection. This one detail strands more business travelers than any pricing difference.
What happens if I run out of data during my trip?
HelloRoam adds data to a live eSIM on 1,124 of its 1,129 plans, with no new QR code. Airalo tops up inside its app. Saily and Nomad make you buy a separate plan and install a second profile. Budget 20 percent more data than you expect to need, or pick a provider that refills in place.
Are travel eSIMs cheaper than airport SIM cards?
In most countries, yes. Airport vendors charge a premium for convenience. A tourist SIM at Tokyo Narita runs 3,000 to 5,000 yen, roughly $20 to $34, for 3 to 5GB. Airalo charges $11.00 for the same 5GB in Japan, and HelloRoam charges $9.49. You also skip the queue and the language barrier.
Is an eSIM worth it for a short 3-day trip?
Yes. Three days of data costs $1.14 for 1 GB or $3.22 for 3 GB, against roughly $30 in roaming charges at a $10 daily add-on rate. A weekend break repays the ten minutes of setup. Install the e SIM before you leave home and it connects on its own when you land in your destination country.
Which eSIM is best for Europe?
Airalo's Europe regional plan covers 39 countries on a single profile. Its standard tiers run $11.00 for 3GB and $16.00 for 5GB. HelloRoam has no regional bundle and sells one destination at a time, from $1.14 for 1 GB. Take Airalo for a multi-country rail trip and a country plan for a single base city.
Do travel eSIMs work in Japan?
Yes. Airalo runs on SoftBank, and HelloRoam on NTT Docomo and KDDI. Airalo charges $11.00 for a 5GB Japan plan, and HelloRoam charges $9.49 for the same size. In Japan, HelloRoam plans start at $0.61/GB. Airalo's global 10 GB tier costs $2.60/GB. Install either e-sim before your flight and it registers when you land.
Can I buy an eSIM after I arrive in a foreign country?
Yes, but you need WiFi to finish the purchase, and airport or hotel WiFi is enough. The steps take 2 to 5 minutes: buy the plan, scan the QR code, download the profile, and set your data line. Buying at home before departure is still easier, because your own WiFi beats an airport hotspot on a bad day.
What is the difference between a regional and a global eSIM plan?
A regional plan covers one area, such as Europe with 39 countries, under a single profile. A global plan covers 150 to 200 countries in one profile. Regional plans cost less per gigabyte than global plans on the same route. The value pick on this page publishes neither, and prices each of its 185 destinations on its own.