Best unlimited eSIM in 2026

The best unlimited eSIM for most trips in 2026 is TonMobile: it sells unlimited plans in more than 130 single countries, from one day up to a month, with prices that start at $3.10 a day in much of Europe. Saily and Ubigi give bigger daily full-speed quotas (5 GB), and Holafly is the simple choice when one plan has to cover many European countries.

What "unlimited" means on a travel eSIM

An unlimited eSIM is a data-only plan with no total gigabyte limit during its validity. You will not be cut off on day four because a counter hit zero. What you get instead is a two-speed day.

The first part of each day runs at full 4G or 5G speed until you have used the plan's daily quota. After that, the line keeps working at a lower, fixed speed until the 24-hour period ends and the quota refills. Providers call this a fair usage policy, a daily high-speed allowance, or simply throttling.

So the useful question is never "is it unlimited?". It is "how much do I get at full speed each day, and how slow is it afterwards?". Those two numbers explain almost every complaint about unlimited plans that we read in provider help pages.

Why the daily cap exists

Travel eSIM brands resell capacity from local mobile operators. TonMobile's own terms say plainly that it is a reseller and does not run the network, and the same is true across this market. The local operator sets how much heavy traffic a roaming customer can push through its towers, and the eSIM brand passes that rule on to you as a daily quota.

That also explains why limits can change from one country to the next inside the same app. A provider may run on a generous partner network in one country and a stricter one next door.

The words you will see on a plan card

Our glossary of plan-card terms covers a few more, such as validity, activation window and top-up.

The best unlimited eSIM providers, compared

We scored each of the 15 providers from 1 to 10 on six criteria: how many countries have an unlimited plan, price per day, choice of plan lengths, daily full-speed quota, hotspot rules, and ways to buy and pay. The full table and the weighting are on the provider scores page, and the method is explained in how we score.

Click a column heading to sort. Blank or "not published" means we could not read the figure on the provider pages.

TonMobile: widest choice of countries and the shortest plans

TonMobile is a travel eSIM service that sells plans for about 200 countries and regions through a Telegram bot, a web app and apps for iPhone and Android. In its web app, more than 130 individual countries have an "Unlimited" tab next to the usual fixed-gigabyte plans, which is the longest unlimited list among the providers we compared.

Lengths come in six steps: 1, 3, 5, 7, 15 and 30 days. A few countries stop at 15 days, Japan among them. The short end is what sets it apart: a one-day plan in the UK, France, Spain or Germany costs $3.10, so a long weekend does not force you into a week-long package.

The plan cards we read for the UK and Turkey said the first 1 GB each day runs at full speed and the line then drops to 512 kbps until the next day. That is a smaller quota than Saily, Airalo or Ubigi publish, so the plan suits travelers who mostly navigate, message and post photos rather than stream all evening. Limits are set by the local partner network, so read the card for your own country before paying.

Payment is flexible: Visa, Mastercard, Apple Pay, Google Pay, and crypto including Bitcoin and Toncoin. The homepage says no documents are needed to buy. You get 180 days to activate after purchase, so buying a plan a month before the flight is fine. The Android app holds 4.5 stars from 162 reviews, with more than 10,000 downloads.

How it handles the cap. After the daily quota the line stays connected at the slower speed shown on the card, which keeps maps, messaging and voice calls in apps working. Because quotas come from the local partner network, a country's card can differ from the UK and Turkey examples, so treat 1 GB as what we saw, not a promise for every destination.

Buying and managing. All four ways to buy are equal: the @tonmobile Telegram bot, the web app, the iPhone app and the Android app. The app tracks remaining data and validity, lets you top up an installed eSIM, gift an eSIM to someone else or buy several at once for a family. Cashback lands as bonus balance in US dollars, valid for a year. Support answers in the bot and apps from 06:00 to 23:00 (UTC+2).

Refunds. TonMobile considers a refund before the package expires if your phone turns out not to support eSIM, if the network is unavailable in the covered area because of the provider, or if data still cannot be enabled four hours after you contact support. A working eSIM that slows down after its daily quota does not qualify, which is fair warning to read the card first.

Best for: one-country trips from a weekend to a month, travelers who want to pay in crypto, and anyone who already lives in Telegram.

Saily: biggest quota with free hotspot use

Saily says its unlimited plans give 5 GB of high-speed data in each 24-hour period, then 1 Mbps, and that hotspot sharing is unlimited on every plan. That combination is the strongest for anyone who works from a laptop on the road.

Coverage is narrower than TonMobile's: 62 countries plus a Europe regional plan (35 countries) and an Asia and Oceania pack. Plan lengths run 5, 7, 10, 15, 20, 25 or 30 days, so there is no option for a two-day stop. The Europe plan starts at $28.99 on its overview page.

Best for: remote workers who tether a laptop every day, and longer stays in countries on Saily's list. If your trip is two or three days, the 5-day minimum means paying for days you will not use.

Airalo: the clearest written rule

Airalo explains its unlimited plans in one sentence: 3 GB of high-speed data per 24-hour period from activation, then 1 Mbps. Tethering is allowed with no extra limit, but whatever your laptop uses comes out of the same 3 GB. Plans can be topped up or extended, and examples of validity are 3, 7, 15 and 30 days.

Best for: travelers who like rules written down before they pay, and trips where a top-up mid-way might be needed. Remember that a laptop on hotspot spends the same 3 GB your phone needs for the evening.

Holafly: one plan for a multi-country Europe trip

Holafly's Europe plan covers 33 countries for one price, from $11.90 for 3 days to $76.50 for 30 days, and plans run from 1 to 90 days. It does not publish a daily full-speed number. Instead, it says partner operators may apply a fair usage slowdown for up to one day. Hotspot sharing is capped at 1 GB a day, so a 7-day plan allows up to 7 GB of sharing in total.

Best for: rail and road trips through several European countries, and long stays up to three months. If you plan to share data with a laptop, the 1 GB daily hotspot cap is the line to read twice.

Ubigi: fastest lane after the cap

On the Ubigi unlimited plan we read (Egypt, 30 days, $69), the first 5 GB each day run at full speed and the rest at 2 Mbps. That fallback is fast enough for most video calls. The plan starts when you arrive, and you have six months to activate it. Unlimited is available in selected countries rather than everywhere Ubigi sells data.

Best for: people who need video calls even after the quota is used, in a country where Ubigi sells an unlimited plan.

Nomad: middle quota, fixed plans

Nomad gives 2 GB of high-speed data per day on most unlimited plans, then about 1 to 2 Mbps depending on the plan, resetting 24 hours after activation. Its plan rules add that unlimited plans cannot take extra data or extra days, and that you have 60 days from purchase to activate.

Best for: moderate users with a fixed itinerary who browse, navigate and post a lot but rarely stream. Because there are no extensions, buy the full trip length at the start.

Nine more providers we scored

These providers have a shorter write-up here because they publish fewer details about their unlimited plans. Each one has a full card with criterion scores on the provider scores page.

How daily caps and resets work in practice

A quota sounds abstract until you picture a real day. Say you activate the plan at 8 in the morning, use maps and messages all day, upload holiday photos at lunch and watch a few videos in the evening. When you hit the quota, nothing switches off. Pages simply load slower until 8 the next morning.

Three practical details follow from this.

• Your reset time is your activation time. If you activate at 11 at night, your quota refills at 11 at night. Activating early in the morning lines the fresh quota up with your day.
• Heavy use early in the day costs you the evening. Big photo backups over the mobile line eat the quota first. Leave them for hotel Wi-Fi.
• Slow is not off. At 512 kbps or more, messaging apps, maps and email keep working. Video is what suffers.

How many hours of full speed do you actually get?

It depends on how fast you spend data. The dials below assume you use 3 GB spread evenly over a day, a fairly heavy tourist day with video. With a 5 GB quota you never leave the fast lane; with 1 GB you spend most of the day in the slow lane.

If your day is mostly maps, messaging and a handful of photos, a 1 GB quota can last into the evening, and price per day becomes the deciding factor. Our guide to a month abroad works through realistic daily budgets.

What each slowdown speed is good for

The gap between 512 kbps and 2 Mbps is large in practice. At the lower speed, a voice call over WhatsApp or Telegram usually holds, but a video call will often freeze. At 2 Mbps most video calls connect at reduced quality. If you rely on the slow lane every evening, the fallback speed matters as much as the quota.

Unlimited or a fixed-GB plan: which costs less?

Fixed plans are almost always cheaper per gigabyte. Unlimited plans charge for certainty. The clearest way to see the trade is on one provider's price list for one country. Here are TonMobile's Turkey prices from its web app.

On a month in Turkey, the cheapest fixed plan stays below the unlimited price at any realistic level of use. Unlimited still wins on a different axis: you never run out, you never top up mid-trip, and a hotspot session for your laptop never ends the plan early.

The trip picker at the top of this page turns your daily habits into a rough daily figure and tells you which plan type fits. It uses each provider's published quota, so it is a guide, not a promise of speed.

The short-trip effect

Unlimited becomes good value on short trips with heavy use. Seven days of unlimited in Turkey or the UK costs $16.50 on TonMobile. If you would otherwise buy 10 GB for $14.40 and risk running out, the difference is small for the comfort of not counting.

Unlimited eSIM, home roaming or a local SIM?

An unlimited travel eSIM is one of three ways to stay online abroad. The other two are your home carrier's roaming package and a prepaid SIM bought in the country. Each one fits a different traveler, and the differences are mostly about cost, effort and what happens to your phone number.

TonMobile claims its plans are up to five times cheaper than roaming. That depends heavily on your own carrier, so compare its price for your exact destination with your carrier's roaming page before deciding. The real advantage of a travel eSIM is that it is ready before you board, and your home number keeps receiving bank codes on the second line.

Why the second line matters

Most phones that support eSIM can hold your home SIM and a travel eSIM at the same time. You set the travel eSIM as the line for mobile data and leave the home line on for calls and texts, with data roaming off on the home line so you are not charged twice. One-time codes from your bank still arrive, and you never pull a physical SIM out at a gate.

Can you use hotspot on an unlimited eSIM?

Usually yes, but every provider handles it differently, and hotspot is where most unlimited plans quietly stop being unlimited.

• Separate hotspot cap. Holafly lets you share up to 1 GB a day, so a 7-day plan allows 7 GB of sharing in total.
• Shared from the same quota. Airalo allows tethering with no separate limit, but laptop data comes out of the 3 GB daily quota.
• No separate cap. Saily says hotspot is unlimited on all its unlimited plans, within the 5 GB daily high-speed quota.
• Depends on the network. TonMobile says hotspot works in most countries and on most phones, but it depends on the local carrier and the device, and it does not guarantee it everywhere.

If hotspot does not work on a TonMobile eSIM, its help center suggests checking that the APN in the hotspot (tethering) section matches the APN used for mobile data, then restarting the phone. On iPhone, the setting lives at SettingsCellularyour eSIMCellular Data Network.

A laptop uses far more data than a phone, because it runs updates, cloud sync and full desktop websites. Our laptop hotspot guide covers how to stop that from eating your quota in the first hour.

Best unlimited eSIM by destination

Unlimited prices swing widely between countries, even inside one app. Use the price explorer to see TonMobile's unlimited prices for popular destinations, then compare the per-day cost against how long you are staying.

Europe: one country or many?

For a trip that stays in one country, single-country unlimited plans are the cheapest route we found. TonMobile charges $3.10 for a day and $69.99 for 30 days in the UK and France, and $74.62 for 30 days in Spain, Germany or Portugal.

Crossing borders changes the picture. A TonMobile unlimited plan only works in the country it was bought for, so a route through France, Switzerland and Italy needs three plans or a regional fixed-GB pack. For that kind of trip, Holafly's 33-country Europe plan or Saily's 35-country Europe plan keeps you on one eSIM. Our Europe guide works through both options.

USA and Canada

TonMobile's USA unlimited plan costs $23.86 for 7 days and $99 for 30 days. Holafly's USA plan, which runs on AT&T and T-Mobile, lists $27.50 for 7 days and $73.90 for 30 days, with hotspot capped at 1 GB a day. Canada is noticeably pricier on TonMobile: $42.56 for 7 days. The USA guide has the full comparison.

Asia

Southeast Asia is good value on TonMobile: a week of unlimited costs $22.53 in Thailand, $27.25 in Vietnam and $28.02 in Indonesia or Singapore. Japan stops at 15 days ($46.96), as do South Korea, Malaysia and China, so a month in Japan means two plans in a row or a fixed plan.

Middle East and Turkey

Turkey is one of the cheapest unlimited countries we found: $16.50 for a week and $69.50 for 30 days. The UAE costs more, $29.68 for 7 days and $123.72 for 30, and Saudi Arabia sits in between at $29.98 for a week.

Fitting plan lengths to a real itinerary

Unlimited plans are sold in fixed lengths, and a trip rarely matches them exactly. Paying for days you do not use is the hidden cost of unlimited, so it helps to know which lengths each provider sells.

A few worked examples with TonMobile's October 2026 prices show how much the steps matter.

Two cautions before you split plans. First, each plan is its own purchase with its own activation, so check in the app how a second plan is applied to an installed eSIM. TonMobile's help center explains that a top-up starts once the previous plan's data is used up, which suits fixed plans more than unlimited ones. Second, a longer plan has a lower price per day, so splitting only pays when the next length up is much longer than your trip.

Lengths across providers

• TonMobile: 1, 3, 5, 7, 15 and 30 days, with some countries capped at 15 days.
• Saily: 5, 7, 10, 15, 20, 25 and 30 days depending on the plan; Europe from 7 days.
• Airalo: examples of 3, 7, 15 and 30 days, with extensions and top-ups.
• Holafly: 1 to 90 days.
• Nomad: no extensions on unlimited, so buy the full length up front.

4G, 5G and the network behind your plan

The full-speed part of an unlimited plan is only as fast as the local network it rides on. Providers in this guide describe it in similar terms: TonMobile's store listing promises 4G and 5G in almost every destination, Holafly connects to 5G where available and falls back to 4G and LTE, and Nomad gives 5G or 4G depending on what is available locally.

None of them can promise a speed figure for the fast lane, because it changes with the operator, the time of day and how close you are to a tower. What they can promise is the rule: how many gigabytes run on that network at full speed, and the speed you drop to afterwards. That is why this guide scores the rule, not a speed test.

Which operator will you use?

Some providers name the partner operators on the plan page. Holafly lists AT&T and T-Mobile for its USA plan, for example. Others show the network once the eSIM is installed. If coverage in a specific area matters, such as a national park or an island, check the named operator's own coverage map before you buy. Holafly itself warns that coverage can be weaker in rural and remote areas, which is true of every travel eSIM.

How to see how much of today's quota is left

Knowing where you stand in the day helps you decide whether that video can wait for Wi-Fi. There are two places to look.

• The provider's app. TonMobile's app has a screen for remaining data and validity on each installed eSIM, and its help center has a page on checking remaining traffic.
• Your phone. iPhone and Android both show mobile data used per line in their cellular or mobile network settings. Reset the counter when the plan starts and you have a rough daily tally.

Phone counters do not know about the provider's daily reset, so treat them as a guide. If your plan resets 24 hours after activation, note the time you activated and check usage against that clock rather than midnight.

Paying for an unlimited eSIM: cards, wallets and crypto

TonMobile takes Visa and Mastercard cards, Apple Pay, Google Pay and several cryptocurrencies, including Bitcoin and Toncoin. Other providers list their own payment options at checkout. Its terms describe how crypto refunds work: they are paid in the same number of tokens received, without adjusting for price changes, and Bitcoin payments are refunded in USDT over TRON, TON or Ethereum because Bitcoin network fees are high. You can also take a refund as US-dollar balance inside the platform instead.

TonMobile says no documents are required to buy an eSIM. That makes it quick to order for a trip that starts tomorrow, from the Telegram bot or the web app. Prices on its platform are shown before tax, and its terms say any local taxes are the buyer's responsibility.

Buying for more than one person

Each phone needs its own eSIM, so a family of four on unlimited plans pays four times. Two ways to cut that cost: give one person a plan with a generous hotspot rule and let the others connect to it, or give heavy users unlimited plans and light users small fixed plans. TonMobile's app lets you buy several eSIMs at once and send one as a gift to another person, which saves setting up the app on every phone.

How to choose an unlimited eSIM in five checks

1. Find the daily full-speed quota

   It is on the plan card or in the plan details. Under 1 GB is fine for maps and messages. Daily video or work calls need 2 GB or more.

2. Check the speed after the cap

   512 kbps keeps messengers and maps alive. 1 Mbps adds low-resolution video. 2 Mbps keeps most video calls usable.

3. Match the plan length to your trip

   Count your days and see which lengths the provider sells. TonMobile's 1, 3 and 5-day plans avoid paying for a full week on a short stop.

4. Read the hotspot rule

   A separate daily hotspot cap, a shared quota and a network-dependent hotspot are three very different things if you work from a laptop.

5. Check coverage type and activation window

   One country per plan or a regional bundle? And how long after buying can you activate: 180 days on TonMobile, six months on Ubigi, 60 days on Nomad.

How to install and start an unlimited eSIM

The steps are the same for every provider here. We use TonMobile's flow as the example because it offers four ways to buy: the Telegram bot, the web app, the iPhone app and the Android app.

1. Check your phone

   The phone must support eSIM and must not be locked to your home carrier. TonMobile's web app has a compatibility check on each country page.

2. Pick the country and open the Unlimited tab

   Choose the plan length and read the daily full-speed line on the card before paying.

3. Pay

   Card, Apple Pay, Google Pay or crypto on TonMobile. Other providers show their own payment options at checkout.

4. Install before you fly

   Scan the QR code or follow the in-app install. Do not delete the eSIM afterwards: TonMobile notes that some eSIMs can only be installed once.

5. Turn it on when you land

   Switch mobile data to the travel line and turn on data roaming for it. Keep your home SIM active for bank text messages.

Phone-specific screens are in our guide to speeds after the cap, which also covers how to check how much of today's quota is left.

Common problems on unlimited plans and quick fixes

Mistakes that make an unlimited plan feel limited

Most disappointment with unlimited plans comes from a handful of avoidable choices made before or during the trip.

1. Buying on the word "unlimited"

   The quota decides the experience. A 1 GB card and a 5 GB card are both called unlimited, but they feel very different on an evening of video.

2. Activating at the wrong time

   Activating late at night puts the reset at night too. If your plan resets from activation, activate on the morning you arrive so a fresh quota greets each day.

3. Letting the phone back up photos over mobile data

   Cloud photo backup and app updates can use a full quota in minutes. Restrict them to Wi-Fi for the travel line.

4. Assuming hotspot is free

   A laptop on hotspot can spend a day's quota in one long session. Check whether hotspot has its own cap or shares the daily allowance.

5. Buying one country's plan for a border-crossing trip

   Single-country unlimited plans stop working at the border. For a multi-country route, look at regional plans instead.

6. Deleting the eSIM after a glitch

   Some eSIM profiles can only be installed once. Contact support first, then remove the eSIM only if they tell you to.

Who should buy an unlimited eSIM

Who should skip it: travelers on hotel Wi-Fi most of the time, people who only need maps and messaging, and anyone hopping across many countries who would need a new unlimited plan at each border.

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