eSIM FAQ
eSIM and Provider FAQ
The questions travelers ask most - about choosing a provider, installing an eSIM, coverage, data plans, and roaming.
General questions
Can I install an eSIM before my trip?
Yes, you absolutely can install your travel eSIM before your trip. In fact, it's the smartest move. Buy your plan on Wi-Fi at home, scan the QR code or use the provider's app (Airalo, Holafly, Nomad, Saily, etc.), and the eSIM profile sits dormant on your phone. It won't connect or start the plan's countdown until you land and your phone hits a supported network.
Most providers let you install days or even weeks ahead. For example, Holafly eSIMs typically activate only upon first connection in the destination. Airalo and Nomad work the same way, though some plans start counting days from installation, not connection, so check the fine print. A good rule: install it at home, keep it turned off in your cellular settings, and flip it on after you touch down. No scrambling for airport Wi-Fi.
Can I make regular calls with a data-only eSIM?
Data-only eSIMs from brands like Airalo, Holafly, and Nomad don't come with a phone number. That means you can't make or receive regular cellular calls the old-fashioned way. But don't worry, you've got plenty of free app alternatives that work over your data just like Wi-Fi.
Use WhatsApp, FaceTime, Zoom, or Skype to talk and video call anyone. The sound quality is often better than a standard call, and you aren't paying per minute. If you need to call a landline or a business, apps like Skype or Google Voice let you buy a little credit at dirt-cheap rates.
One small thing: the person you're calling might see a different caller ID, or none at all. Just give them a heads up if that matters. For most travelers, using data for calls is the simplest, cheapest way to stay in touch.
Can I reuse a travel eSIM on my next trip?
Most travel eSIMs let you keep the profile and buy a new data plan for the next trip. Single-use plans expire after use, so you start fresh each time.
Providers like Roamless are built for reuse: install the eSIM once, then top up credit anytime without expiration. Airalo, Nomad, Ubigi, and aloSIM also let you reuse the installed eSIM by purchasing a fresh plan for the same destination later. Holafly's unlimited plans typically don't allow top-ups, so you'd get a new eSIM each trip. Always check the app for "top-up" or "new plan" options on your existing eSIM.
After your trip, don't delete the eSIM profile. Just turn it off in your phone's settings. When you're ready for the next trip, open the provider's app, pick a data plan for that country, and assign it to the eSIM you already have. That saves time and keeps your setup tidy.
Can I still use WhatsApp on my normal number?
Yes, you can absolutely keep using WhatsApp with your normal number while traveling with an eSIM. WhatsApp links to your phone number, not to the physical SIM card. As long as you don't agree to switch numbers inside the app, everything stays the same.
Most travel eSIMs are data-only, so they don't give you a new phone number. That means WhatsApp simply uses the eSIM's data to send messages and make calls. Your contacts still see your regular number. Just install the eSIM before you leave and set it as the main data line. Providers like Airalo, Holafly, and Nomad all work this way.
If your phone supports dual SIM, you can even keep your home SIM active for calls (but watch out for roaming fees). For WhatsApp, the data connection is all that matters. Chat away, no number swapping needed.
Can I transfer an eSIM to a new phone?
Most travel eSIMs are tied to the phone where you first activate them. You can't just pop them out like a physical SIM. But you can often reinstall the eSIM on a new device if you remove it from the old one first.
Airalo and aloSIM let you re-download an active eSIM through their app on a new phone. Saily works the same way. Holafly and Nomad typically treat eSIMs as single-use once installed, so you'd need to buy a fresh one. Always uninstall the eSIM from your old phone's settings, then scan the original QR code or re-apply the setup from the provider's app on the new phone.
If that doesn't work, just grab a new plan. Travel eSIMs are cheap enough that it's no big loss.
Can I use an eSIM and my physical SIM at the same time?
Absolutely. Most newer phones support Dual SIM Dual Standby (DSDS). That means your physical SIM and eSIM can both be active, you just pick which one handles data and which one handles calls and texts.
When you travel, the smart move is to keep your home physical SIM for incoming calls and SMS (if needed), then buy a data-only eSIM from a provider like Airalo, Holafly, or Nomad. Set the eSIM as your data line, and turn off mobile data switching so your home line doesn't accidentally use pricey roaming data. You can still receive calls on your physical SIM while browsing on the eSIM.
A quick tip: iMessage and FaceTime might try to use your physical SIM's number. To avoid mixups, link those services to your email instead. Just head to Settings > Cellular/Mobile Data and choose your default lines.
Can I use one eSIM on two phones at once?
No, you can't. A travel eSIM can only be active on one phone at a time. It's tied to your device's unique ID once installed.
If you need data on a second phone, buy a separate eSIM. Some providers like Airalo and Nomad let you purchase multiple eSIMs under the same account, so you can manage both from one app.
Trying to move an eSIM to a new phone? Some providers like Holafly allow a one-time transfer through their app, but it's not designed for simultaneous use. Check the provider's policy before you buy.
Do I need an unlocked phone for a travel eSIM?
Yes, almost always. An eSIM needs an unlocked phone because it connects to a different carrier. If your phone is locked to a carrier, it won't let you install and use another network's eSIM.
How to check: go to Settings > Cellular or Mobile Data and look for Add eSIM. If that option is missing or grayed out, your phone might be locked. Contact your home carrier and ask them to unlock it. They often do it for free if you meet their rules.
Providers like Airalo, Holafly, and Nomad all require an unlocked device. Without an unlock, their plans simply won't work.
Do I need to remove my home SIM to use an eSIM?
Nope, you don't have to remove your physical SIM. An eSIM is just a digital profile, so modern phones can run both lines at the same time. This lets you keep your home number active for calls and texts while using the eSIM for data.
The real trick is avoiding accidental roaming charges. Go into your phone settings and switch data roaming off for your home SIM. Then set the eSIM as the default for cellular data. If you're extra cautious, you can temporarily turn off the home line entirely, but you don't have to.
This setup works great with data-only eSIMs from Airalo, Holafly, or Saily. You'll have fast local data and your number can still receive iMessages and calls on Wi-Fi if your carrier supports it. Just double-check your home plan's roaming policy for peace of mind.
Do I need WiFi to install an eSIM?
Yes, you do need WiFi or a working data connection to install a travel eSIM. The eSIM profile is a tiny file that your phone downloads over the internet when you scan the provider's QR code or type in the activation code manually. No connection, no download.
The easy fix is to install before you leave home. Most providers like Airalo, Holafly, Nomad, Saily, and aloSIM let you install the eSIM days ahead while you're still on your home WiFi. Just scan the QR, add the plan, and then wait to activate it until you land. That way you're not hunting for airport WiFi when jet-lagged.
If you do get stuck without WiFi, apps like Instabridge can point you to free public hotspots nearby. But a little planning saves the headache.
Does a travel eSIM give me a local phone number?
Most travel eSIMs are data-only so you won't get a local phone number. Instead, you use apps like WhatsApp or FaceTime over data.
A few providers do offer a phone number, but it's typically an international number (like a US or Austrian number), not a local one for your destination. For example:
- Holafly includes a phone number on some Europe plans.
- BNESIM offers plans with a phone number for calls and SMS.
- Maya Mobile has a global number add-on for some regions.
If you truly need a local number (to receive SMS from banks, for instance), you're better off buying an eSIM from a local carrier in your destination country.
How do I activate my eSIM when I land?
Once you land, turn off data roaming on your primary SIM to avoid roaming charges. Then head to your phone's cellular settings and enable the eSIM line. Make sure data roaming is toggled on for the eSIM (it's usually required even for local service). Set the eSIM as your default line for cellular data.
Toggle Airplane Mode on and off. This forces your phone to search for a local network. Most travel eSIMs from providers like Airalo, Holafly, or Saily activate automatically the moment they connect to a supported network. If you see signal bars but no data, restart your phone.
Still stuck? Open the provider's app (like Nomad, Jetpac, or aloSIM) and use their step-by-step instructions or live support. A quick network reset usually does the trick.
How do I delete an eSIM I no longer need?
Deleting an expired travel eSIM is quick and frees up a slot for future trips. On an iPhone, go to Settings > Cellular (or Mobile Data). Tap the eSIM you want to remove, then hit Delete eSIM. On Android, it's similar: Settings > Connections > SIM Manager, select the eSIM, and choose Remove. The exact menu names can vary by brand, but the idea is the same.
Most travel eSIMs from providers like Airalo, Holafly, or Nomad are one-time data plans. Once expired, they can't be topped up, so deleting is safe. If you bought a reusable eSIM (like from BNESIM or Maya Mobile) that you plan to reload later, just turn off that line instead of deleting. That keeps the profile ready for your next trip. If you're unsure, check the app; it'll show if it's a single-use plan.
How do I install a travel eSIM?
First, buy a plan from a provider like Airalo, Holafly, or Nomad. After purchase, you'll get an email or app notification with a QR code and manual setup details.
On your phone, go to Settings > Cellular (or Mobile Data) > Add eSIM. Use your camera to scan the QR code. If that fails, choose "Enter Details Manually" and copy the info from your provider.
Some apps, like aloSIM or Saily, guide you step by step right after checkout, so you never leave the screen. Once installed, you can label the eSIM (like "Spain Trip") and set it as your data line.
How does a travel eSIM work?
A travel eSIM is a tiny digital chip already in your phone. You download a prepaid data plan from an app, like Airalo or Holafly, before you fly. It works just like a regular SIM but without any plastic.
Here's the flow: pick your country or region, buy a plan (usually $5 to $50 for 1GB to 50GB in 2026), and you get a QR code. Scan it, and your phone adds the eSIM profile. Turn it on when you land, and you're online. Most phones let you keep your home SIM active for calls, so you don't lose your number.
Data-only plans are common, but some providers like Yesim include a voice number for a few bucks more. No physical swap, no store visits, just instant connectivity.
How many eSIMs can my phone store?
It depends on your phone model. For iPhones, models from the XS and XR onward can store at least 8 eSIMs. Newer ones (iPhone 13, 14, 15, 16) bump that up to 20 stored eSIMs, even though you can only have two active lines at once.
Android is more varied. Samsung's recent Galaxy S24 and S25 series can hold up to 20 eSIM profiles. Google Pixel phones usually store around 5 to 10. Other brands like OnePlus or Xiaomi might support different limits, so it's always best to check your specific model.
To see what's already saved:
- On iPhone: Settings > Cellular (or Mobile Data)
- On Android: Settings > Connections > SIM Manager
If you're close to the limit, just delete any old eSIMs you no longer use. That frees space instantly without affecting your main line.
Is an eSIM safe to use?
Yes, eSIMs are safe. They're built right into your phone, so there's no tiny plastic card to lose or for someone to swap out. All mobile data is encrypted anyway, same as a physical SIM. The real risk isn't the tech: it's sketchy resellers or outdated apps.
Stick to brands we compare on NomadCue, like Airalo, Holafly, Nomad, or Saily. These providers have solid reputations and direct carrier partnerships. Always download the eSIM profile straight from the official app, never from a random link. If you're on public Wi-Fi, fire up a VPN for an extra layer. That's it, no paranoia needed.
Is my phone compatible with an eSIM?
Most phones from 2018 onward support eSIM. For iPhones, it's XS/XR and newer. For Google Pixel, it's Pixel 3 and up. Samsung Galaxy S20 series and later, including Z Flip and Fold models, also work. Not sure? Go to your phone's Settings, then About or Cellular, and look for an "Add eSIM" or "Digital SIM" option.
Even if your phone model supports eSIM, a carrier lock can block foreign eSIMs. If you bought your phone directly from a carrier on a payment plan, contact them to unlock it. Once unlocked, you can use any travel eSIM.
Many eSIM stores have free compatibility checkers. Before you buy a plan from Airalo, Holafly, or Saily, just enter your phone model or scan a QR code to test it instantly. This avoids buying a plan you can't use.
What happens to my eSIM when I get home?
When you get home, your travel eSIM will simply deactivate. Once the plan's data or time runs out, it stops working automatically. No surprise charges, no cancellation needed.
You can safely delete it from your phone to keep things tidy. Go to Settings > Cellular, tap the eSIM, and choose "Remove Cellular Plan." But if you travel often, leave it on your device. Providers like Airalo, Nomad, and aloSIM let you top up the same eSIM for your next trip. A one-time plan from Holafly or Jetpac will just expire, so delete it when you're done. Saily and Yesim also offer top-up options. Quick and painless.
What if I lose my phone with the eSIM on it?
First, lock or wipe your phone remotely using Find My iPhone or Google's Find My Device. That keeps your personal data safe.
Next, contact your eSIM provider's support right away. Tell them you lost the device. They can deactivate the eSIM so nobody else can use it. Most travel eSIMs, like those from Airalo, Holafly, Nomad, or Ubigi, can't be moved to a new phone once installed. You will probably need a fresh plan.
If you need data urgently, buy a new eSIM on a friend's phone or a laptop. Install it on your replacement device and you're back online.
What is a QR code for and where do I scan it?
That QR code holds all the info your phone needs to download a new eSIM profile. Think of it like a digital SIM card wrapper. Providers like Airalo, Holafly, or Nomad send you a QR code right after purchase, either in their app or by email.
On an iPhone, open Settings > Cellular > Add eSIM and point the camera at the code. On most Android phones, it's Settings > Connections > SIM manager > Add eSIM. Do this while you're on Wi-Fi, since your phone will need to contact the carrier to finish the setup. Some phones also let you enter the activation details manually if scanning feels awkward.
What is an eSIM?
An eSIM is a digital SIM card already built into your phone. It works just like a plastic SIM but without the tiny card. You don't need to swap anything when you travel.
For trips, you buy a data plan online from a provider like Airalo, Holafly, or Nomad. You scan a QR code or install through their app. Your phone then gets a local number or data connection in the country you're visiting. Most eSIMs are data-only, so they're perfect for maps, messaging, and browsing.
In 2026, a 5GB plan for Europe costs around $8 to $15 depending on length and speed. Make sure your phone is unlocked and eSIM-compatible before you go.
What is an ICCID and where do I find it?
An ICCID (Integrated Circuit Card Identifier) is the unique 19- or 20-digit serial number tied to your eSIM. Think of it like a license plate for your data plan. Support teams often ask for it if you run into activation problems.
You can find it in a few spots. Check the confirmation email from your provider (companies like Airalo or Holafly list it right in the setup guide). If you installed the eSIM already, open the provider's app: in Airalo, go to My eSIMs and tap your plan; in Holafly, it's under the eSIM details. On your phone, head to Settings > General > About, then scroll to the eSIM section. The number shows up under ICCID.
Why is my eSIM QR code not scanning?
Your eSIM QR code won't scan? First, crank screen brightness to max and wipe your camera lens. Hold your phone steady about 6 inches from the screen. Glare, smudges, or low light ruin the scan. If that doesn't help, open the confirmation email from your provider (like Airalo, Holafly, or Saily). It usually includes a manual activation code below the QR image.
Go to Settings > Cellular > Add eSIM. Tap "Use QR Code," then "Enter Details Manually." Paste the SM-DP+ address and activation code from the email. That bypasses the camera. Still no luck? Test the QR with a scanner app. If it's expired or used, chat with support. Providers like Nomad or Yesim can send a fresh one in minutes.
Will I keep my regular phone number with a travel eSIM?
Nope, a travel eSIM won't carry your regular phone number. Most data-only eSIMs from providers like Airalo, Nomad, Holafly, or Saily don't include a voice number at all. The eSIM just gives you mobile data abroad.
You can still use your normal number if your phone supports dual SIM. Keep your primary SIM active for calls and texts (make sure roaming is on, or enable Wi-Fi calling). Your travel eSIM handles data, and your regular SIM stays connected for your usual digits. Just set your data line to the travel eSIM and keep the voice line on your home SIM.
If you really need a number to make local calls, some eSIMs (like Holafly's voice plans in certain countries) include a temporary phone number, but it's a new one, not your own. For keeping your regular number reachable, dual SIM is the smoothest way.
Data and plans
Are there family or group data plans for travel?
Most travel eSIMs are built for one device, not for shared family pools. But you have two simple workarounds.
First, you can buy a plan that allows hotspot tethering (most do) and share one connection. Just note that some unlimited plans, like Holafly's, may limit or throttle hotspot use. Check the fine print.
Second, for families who each want their own data, use a provider like Roamless. Its per-credit model lets you load one balance and add eSIMs for each person later, all drawing from the same wallet. Airalo, Nomad, and Holafly also let you manage multiple eSIMs under one account for easy family purchases.
Can I buy more data after I arrive?
Absolutely. Nearly every eSIM provider lets you add more data after you land. Just open their app, navigate to your active plan, and look for a 'Top Up' or 'Add Data' button.
Airalo, Nomad, Saily, and Yesim all let you buy a new data pack right in the app in a few taps. Ubigi and aloSIM work the same way. Holafly's unlimited plans make this a non-issue for many countries. If you're on a fixed-data plan from Maya Mobile or Jetpac, you can usually stack another plan, though you might need to install a new eSIM in rare cases. Prices start at a few dollars for 1GB: think $3 to $5 in early 2026. To avoid surprises, check the provider's top-up policy before your trip, but rest assured, you're never truly stuck.
Can I get a plan that covers multiple countries?
Absolutely. Most eSIM companies offer regional or global plans that cover multiple countries in one package. Think of them like a single data pass for a whole continent. For example, Airalo sells Eurolink (39 countries) and Asialink (15 countries) plans. Holafly has unlimited data for Europe and Latin America. Nomad, Saily, and Ubigi also group countries into easy bundles.
You'll see sizes from 1GB to 20GB or more. Prices in 2026 are around $10 for 3GB in Asia from Nomad, or $20 for 5GB in Europe from Airalo. Always read the country list first, tiny nations might be excluded. For even more flexibility, Roamless gives you a single pay-as-you-go balance that works in 150+ countries without a fixed plan.
Can I share my eSIM data with a hotspot?
Yes, most travel eSIMs let you turn your phone into a hotspot. Providers like Airalo, Holafly, Nomad, Ubigi, aloSIM, Saily, and Jetpac typically allow tethering on their plans. Still, it's not a universal promise. Some data-only eSIMs or specific country plans might block it due to local carrier rules.
Before you buy, quickly scan the plan details for the word 'hotspot' or 'tethering'. Once installed, it works just like a regular hotspot. On iPhone, go to Settings > Personal Hotspot. On Android, look under Connections > Mobile Hotspot. That's all. If you're unsure, stick with a provider known for hotspot support. Airalo and Holafly are safe bets for most destinations in 2026.
Can I top up my eSIM if I run out of data?
Yes, most travel eSIMs let you top up. Airalo, Nomad, and Saily all have a simple top-up button inside their apps. You pick your active eSIM, choose a data add-on, and it stacks onto your remaining balance, as long as your plan hasn't expired.
Holafly works differently, its plans are unlimited data, so you never run out. No top-up needed. If you're on a provider without a top-up option, like a fixed short-term pack from BNESIM or Jetpac, just buy a fresh eSIM. It installs in a couple of minutes and is often cheaper than a top-up for a large data boost.
Do eSIM plans expire?
Yes, they do, in two key ways. Most travel eSIMs have an activation window and a usage period.
First, you usually need to install and activate the eSIM within a set time after buying, or the plan becomes invalid. For example, Airalo and Ubigi often give you 30 days from purchase. Holafly's unlimited plans activate the moment you install them, so you want to time it right.
Then, once active, the clock starts ticking. Typical plans last 7, 15, or 30 days. Even if you only used half your 5GB, it's gone when those days are up. Some providers like Roamless offer longer "pay-as-you-go" credit that doesn't expire for months. Always check the fine print before you buy, no one wants a dead eSIM the day they land.
Do I pay extra for using 5G on a travel eSIM?
Short answer: no, you almost never pay extra for 5G. Most travel eSIMs from big names like Airalo, Holafly, Ubigi, or Yesim include 5G access by default, as long as the local network you connect to has 5G coverage. Your eSIM doesn't charge a premium for the faster speed; it's just part of the data package.
That said, you do need a phone that supports the country's 5G bands (check your model's specs). Some providers like Nomad or Saily offer basic plans that might cap you at LTE speeds to keep the price low, but those are clearly labeled "LTE only" or similar on the plan selection screen. If you see "5G" listed in the plan's features, you're good to go at no extra cost.
Bottom line: Always peek at the plan details before buying. If it says 5G, your data will use it whenever available, with zero surprise fees.
Do unused gigabytes roll over?
With most travel eSIM data packs, the answer is no. Plans from Airalo, Holafly, Nomad, Saily, and similar providers work like a rental. You buy a set amount of data that works for a fixed number of days. Once the plan expires, any leftover gigabytes disappear.
A few providers use a pay-as-you-go model instead. Your balance sits in the account without a hard expiration date. Roamless, Ubigi, and BNESIM all offer this. As long as you keep your account active (with a top-up or a tiny usage once in a while), your unused credit stays put. It's a handy choice if you travel often but need data only in short bursts.
How do I choose the right plan size?
Think about your phone habits. Light use (maps, messaging, email) burns about 1-3GB per week. Moderate use (social media, web browsing, some music) needs 5-10GB. Heavy streaming on Netflix or YouTube? Look for 20GB or unlimited plans.
Check your phone's current data stats under Settings > Cellular / Mobile Data. It shows your real usage. Pick a provider that lets you top up easily if you guess wrong - Airalo and Nomad both offer quick top-ups.
For total peace of mind, Holafly sells unlimited data eSIMs in many destinations. No math needed. Short trip? A 3GB plan from aloSIM or Saily often does the job for a weekend.
How much data do I need for a week abroad?
Most people fall into one of three camps. Light users (maps, messaging, email) can get by on 1-3GB in a week. Moderate users (social media, web browsing, some music streaming) should grab 5-10GB. Heavy streamers and video callers might need 15-20GB or more. Checking your phone's built-in data usage stats from a typical week at home gives you a rough benchmark.
For a week abroad without streaming video, a 5GB plan is often the sweet spot. Many eSIMs come in that size. Airalo, Nomad, and Saily all offer 7-day/5GB options, usually between $4 and $10 in 2026 depending on the country. If you want to stop worrying, Holafly includes unlimited data on most country plans, so you never run out.
How much data do I need for two weeks of travel?
For two weeks, light users who just need maps and messaging can get by on 1-3 GB. Moderate users adding some social media and web browsing should look at 5-10 GB. If you stream video or work remotely, 15-20 GB or more is safer.
Most eSIMs, like those from Airalo or Nomad, sell 1, 3, 5, 10 GB packs. Heavy users might prefer Holafly's unlimited data plans. Check your phone's built-in data tracker before you leave to see your weekly average, then multiply by two. Download offline maps and use Wi-Fi whenever possible to stretch it.
How much data does Google Maps use while traveling?
Google Maps isn't a huge data hog. For active turn-by-turn navigation expect about 5-10 MB per hour. Regular browsing searching and viewing maps uses less around 2-3 MB every 10-15 minutes. Satellite view chews through more so stick to the standard map layer.
To save data download offline maps over Wi-Fi before you head out. Then Maps uses almost no data for navigation. If you still need a plan abroad pick an eSIM with a small data pack from providers like Airalo Holafly or Saily. A 1 GB plan covers weeks of mapping plus occasional lookups.
How much data does video streaming use abroad?
Video streaming hogs data no matter where you are. As a rough guide:
- Standard definition (SD): around 1 GB per hour
- High definition (HD): about 3 GB per hour
- 4K Ultra HD: up to 7 GB per hour
So a two-hour movie in HD can wipe out a 5 GB eSIM. To avoid that, lower streaming quality in app settings or download shows on Wi-Fi before you head out. If you plan to stream often, go for a plan with more headroom. Holafly and Jetpac sell unlimited data eSIMs in many countries (speeds may slow if you use a huge amount). For smaller, budget-friendly packs, Airalo and Saily offer 10 GB for roughly $15-25 in 2026, but a few HD streams will burn through that fast.
Is a 1GB plan enough for a short trip?
For a really light user, 1GB can stretch surprisingly far on a weekend trip. Messaging apps like WhatsApp, map navigation for a few hours, and email checks sip very little data. You could easily get through 3 to 4 days without stress.
But start scrolling Instagram, uploading photos, or streaming music, and 1GB vanishes in an afternoon. Video calls are especially hungry. If you plan to use your phone like you do at home, a 1GB plan will feel suffocating.
Many eSIM providers, including Airalo, Holafly, and Nomad, offer 1GB packs for popular destinations. The smart move? Check your phone's data usage history before you go. If you average over 300MB per day, grab a 3GB or 5GB plan instead. Top-ups are possible on some services too.
Is an unlimited eSIM plan worth it?
Honestly, it depends how you burn through data. If you stream video, tether your laptop, or work from the road, an unlimited plan from Holafly, Nomad, or Yesim can save you from a mid-trip top-up panic. But "unlimited" rarely means full speed forever. Most of these plans throttle you after a daily fair-use cap (often 1-3 GB), so heavy users still feel the pinch.
For the typical traveler using maps, Instagram and messaging, a fixed-data eSIM from Airalo, Saily or aloSIM is often much cheaper and fast enough. A 10-day unlimited Europe plan from Holafly might cost around $19, while a 5 GB Airalo Europe pack is about $8. Check the fine print on throttling before you commit. If you're unsure, start small and top up.
What happens when my eSIM data runs out?
When your travel eSIM data runs out, your internet just stops working. No surprise bills, no overages. Most prepaid eSIMs from providers like Airalo, Holafly, or Nomad have a hard stop unless the plan includes throttled slow data after the cap (rare for travel plans). Some, like BNESIM or Roamless, let you top up directly in the app to add more data at a per-GB rate without buying a whole new plan.
If top-ups aren't an option, you can buy a new eSIM from the same provider or a different one like Saily, aloSIM, or Jetpac. Just install the new eSIM, activate it, and switch your phone's data line. It's quick, usually under 5 minutes. To avoid the gap, check your balance in the app and buy a top-up when you hit 10-15% left.
What is a fair usage policy on unlimited plans?
A fair usage policy on unlimited travel eSIMs sets a daily or total high-speed data cap. After you hit it, your speed drops to a slower rate, often around 1 Mbps, until the next day or end of your plan.
For instance, Holafly unlimited plans usually give 1-3 GB of fast data per day before throttling. Airalo's Discover+ unlimited plans often have a full-term high-speed allowance, then slow data for the rest. It's not truly unlimited fast data, so always check the provider's policy details before buying.
What is a pay-as-you-go eSIM plan?
A pay-as-you-go eSIM works like a prepaid balance. You add credit (often $5, $10, or $20) to your account, then data gets deducted per MB as you use it. No plan expires and you only pay for what you burn. This is perfect if you travel lightly, hop between countries, or want a backup SIM that never goes stale.
A few providers specialize in this model. Roamless offers global pay-as-you-go data that never expires, typically $2-3 per GB. BNESIM and Jetpac also let you load credit and pay per MB, with rates that vary by country. Check NomadCue to compare current pricing.
What is the cheapest way to get data abroad?
The absolute cheapest option is a travel eSIM with a small data pack. Instead of your carrier's $10/day roaming, you can grab a 1GB regional eSIM from Airalo for about $4.50, or a 3GB global plan from Nomad around $9. Holafly sometimes offers unlimited data at competitive rates for longer trips, but short stays rarely need that much. The trick is to buy only what you'll actually use, because leftover data is way cheaper than wasted gigabytes.
To lock in the lowest price:
- Compare plans on NomadCue first (they show real-time prices from providers like Saily, Jetpac, and aloSIM)
- Check the data validity period so it doesn't expire too soon
- Install the eSIM before you fly so you're online the second you land
What is the difference between local, regional and global plans?
Local plans work only in one country. Regional plans cover a cluster of neighboring countries, like Europe or Southeast Asia. Global plans span dozens or even 100+ countries across multiple continents.
When to pick which:
- Local: Best for a single-country trip. Cheapest per GB. Try Airalo's Japan eSIM or aloSIM's USA plan.
- Regional: Ideal for multi-country tours. A Holafly Europe eSIM gives you 32 countries, no need to swap.
- Global: Use if you'll bounce between continents within the plan's validity. Nomad and Saily offer global plans covering 100+ nations, but data allowances tend to be smaller for the price.
Check coverage carefully. Some global plans exclude popular stops like Turkey or certain Caribbean islands.
Choosing a provider
Are eSIM marketplace prices better than carrier roaming?
Almost always, yes. Carrier roaming is simple but pricey. In 2026, daily travel passes from major carriers still hover around $10 a day, and per-megabyte rates are brutal. That adds up fast for maps, photos, and video calls.
Marketplace eSIMs flip the script. For a week abroad, you can grab a 5GB plan from Airalo for about $5, or an unlimited data plan from Holafly for $19. Providers like Saily, Nomad, and Ubigi offer similar deals. The setup takes minutes, and you dodge the shock of a huge roaming bill.
Can I get a refund on an unused eSIM?
Refund policies are a bit hit or miss with travel eSIMs, but most major providers do offer refunds if you haven't installed or used the eSIM yet. You just need to act quickly. For example, Airalo will refund an unused eSIM if you request it within 30 days of purchase and it hasn't been installed. Holafly is even more generous: they'll give you a full refund up to 6 months after buying, as long as you haven't used more than 100MB of data. Nomad and Jetpac also offer refunds within 30 days for uninstalled eSIMs. Once you've installed the eSIM or used any data, refunds become extremely rare. So if you change your plans, contact support right away.
Check the provider's refund policy before buying, and maybe stick with ones that have clear no-questions-asked guarantees. In the worst case, if you have a technical issue and the eSIM doesn't work at all, most companies will refund or replace -- but you'll need to provide proof.
Can I trust eSIM reviews I find online?
Most eSIM review sites try to sell you something, so you should be skeptical. Fake reviews are common, especially on platforms that pay affiliates. A 5-star rating alone isn't enough.
We built NomadCue to cut through the noise. We personally test providers like Airalo, Holafly, Nomad, and Saily on the ground. We buy plans, measure speed, and check support response times. You can also find honest, unfiltered opinions on Reddit threads or independent travel forums.
Still, the best review is your own test. Buy a small data pack from a provider you're curious about and use it for a day before committing. That way you see real performance in your exact destination.
Do any providers offer a free trial eSIM?
Yes, a couple of providers on NomadCue let you try their eSIMs for free. It's usually a small data credit you claim right after signing up as a new user.
Airalo gives a welcome bonus around $3 in Airmoney. That's enough for a 1GB plan in many countries. aloSIM offers a $5 credit for new accounts, which often covers a 1GB or 3-day pass. Both let you test the network without touching your wallet.
Download the app, create an account, and the credit appears. No payment card needed. The data is usually valid for a few days, so you can check speeds and coverage before committing to a bigger plan.
Do eSIM providers offer 24/7 support?
Most big eSIM names do. Airalo, Holafly, Nomad, and Saily all offer round-the-clock chat support, so you can reach a human fast if your data gets weird. Holafly even throws in WhatsApp and phone calls. Jetpac and Maya Mobile also advertise 24/7 help via chat.
Not every provider works that way. Ubigi, for example, leans more on email ticketing which can take hours. If getting help at 2 a.m. matters to you, double check the support page before you buy. Look for live chat or a WhatsApp badge, not just a contact form.
How do I pick between two similar eSIM plans?
When two eSIM plans look like clones, a few hidden differences can change your trip. Don't just glance at the price and total data.
- Network partner: The same 5GB in Spain on Airalo might use Movistar, while aloSIM uses Vodafone. A strong local network means better speed and coverage. Ubigi lists the partner network upfront, so it's easy to compare.
- Throttling rules: If it's unlimited, read the fine print. Holafly often throttles to 2G after 500MB per day. Saily's unlimited plan slows after 2GB daily. That makes a huge difference if you're a heavy user.
- Data expiry: Some 30-day plans start the clock at purchase, others when you first connect. If you're buying early, that matters.
If everything still matches, pick the one with better support or a refund policy. Nomad and Jetpac, for instance, have responsive chat support.
How does Holafly unlimited data work?
Holafly's unlimited data plans give you high-speed data for the first chunk of usage each day, usually between 1GB and 2GB depending on the country. After you hit that limit, your speed drops to around 512kbps until midnight UTC, when it resets. That slower speed is enough for WhatsApp, email, maps, and light browsing, but video streaming or large downloads will feel painful.
This setup works well if you hate watching data meters or buying top-ups. Just keep in mind that it's not a free-for-all for 4K Netflix. If you need guaranteed high-speed for remote work or heavy tethering, fixed-data plans from providers like Airalo or Nomad might be a safer bet.
How is aloSIM different from Airalo?
aloSIM and Airalo both sell data-only eSIMs, but the big difference is aloSIM throws in a free temporary phone number through their Hushed feature with most plans. You get a US, Canadian, or UK number to make calls and text over data. Airalo sticks to pure data, no number at all, so you can't place calls or send SMS through them.
Their coverage overlaps a lot, but Airalo typically offers a larger catalog of local eSIMs per country. Prices are close: a 1GB Europe plan runs about $5 from Airalo and $5-6 from aloSIM. If you need to phone a restaurant or verify a booking, aloSIM wins. If you only need maps and messaging apps, Airalo's huge selection and slightly lower entry prices are hard to beat.
Is Airalo a legit eSIM provider?
Airalo is a legit eSIM provider, no question. They launched in 2019 and now have millions of users worldwide. They connect you through major local networks, so coverage is solid. You buy data packs in their app, set up the eSIM, and you're online fast.
To check it yourself, look at Trustpilot reviews (around 4.2 stars), the app's download count, and their 24/7 support channel. If an eSIM fails, they usually reissue it quickly. Pricing is straightforward, you pay only for the data you choose, no hidden fees.
If you want to compare, other legit options are Holafly (unlimited data), Nomad (budget-friendly plans), or Saily (built by the NordVPN team). But Airalo's global reach is hard to beat.
Is Nomad eSIM a good choice for travelers?
Nomad is a solid pick if you mainly need data while traveling. Their app is clean, setup is fast, and coverage is great across 170+ countries. You'll pay for only what you use, no contracts. Plans are data-only, so no local phone number for calls or SMS. If you need talk and text, look at BNESIM or Roamless.
Prices are competitive: a 5GB Europe plan costs around $12 for 30 days, which is similar to Airalo and aloSIM. But if you burn through data, Holafly's unlimited plans might be a better deal. Just download the Nomad app, pick your region, and install the eSIM before you fly. Toggle it on after landing and you're connected.
What is Saily and is it worth it?
Saily is a travel eSIM built by the NordVPN team, so it runs with a privacy focus. It offers prepaid, data-only plans in 150+ countries. No calls, no texts, just data that activates in a few taps.
As of early 2026, you can grab 1GB for 7 days from $4 in many destinations. A solid 10GB for 30 days often lands around $25. The app is dead simple, and it works on most eSIM phones released after 2018.
Saily is worth it for short trips where you just need maps and messaging. If you want a local number or unlimited data, Airalo or Holafly might fit better. But for straightforward data that respects your info, Saily holds its own.
Which eSIM app is easiest for first-timers?
If you've never used an eSIM, you want an app that walks you through everything without a single setup guess. Look for a clean interface, clear plan descriptions, and instant QR or one-tap install.
In 2026, Airalo and Holafly are the smoothest picks for new travelers. Airalo's app gives you a step-by-step guide, from buying to activating, with helpful visuals. Holafly goes even further, its eSIM auto-configures your phone right after purchase, so you skip APN settings entirely. Both offer 24/7 support chat if you get stuck.
For a quick test run, grab a small plan (like Airalo's 1 GB for $4.50 in Europe or Holafly's 3-day unlimited for $6). You'll be online before takeoff.
Which eSIM provider has the best coverage?
Honestly, no single eSIM provider has "best" coverage everywhere. It really depends on where you're headed. For globe-trotting digital nomads, Airalo and Holafly shine with massive networks in 190+ countries. Nomad also offers solid global and regional plans.
If you're staying within one continent, some providers pull ahead. In Europe, Ubigi and Yesim often have fast local 5G on premium networks. In Asia, Jetpac and aloSIM deliver reliable connections. The trick is to check exactly which local carrier your eSIM will use at your destination, that's what decides call quality and data speed.
Don't just guess. Use NomadCue's comparison tool to filter by country and see real coverage maps and user reviews side by side.
Which eSIM provider is cheapest for Europe?
If you want the cheapest data for Europe, look at providers like BNESIM and Yesim. Their small plans often start under $3 for 1GB. BNESIM's 1GB Europe plan runs about $2.50 for 7 days, while Yesim's 1GB is roughly $3 and valid for 15 days.
For larger data needs, Airalo's 5GB Discover+ Europe plan drops the per-GB cost to around $2.40, with a 30-day window. Saily's European 3GB plan is also competitive at about $7. Always check that the plan covers all the countries on your itinerary, because some cheap regional eSIMs skip a few nations.
Which provider is best for a round-the-world trip?
For a true globe-trot, you want a global eSIM plan to avoid juggling dozens of local SIMs. Two heavy-hitters are Holafly and Airalo. Holafly gives you unlimited data across 130+ countries, great if you stream or work remotely. Airalo's Discover+ global plan covers 120+ countries with prepaid data packs that are often cheaper per gig.
No single eSIM reaches every tiny island, so having a backup helps. Nomad, Ubigi, and aloSIM also sell solid multi-region plans. For last-minute gaps, Maya Mobile or Roamless can top you up quickly. Run your exact route through NomadCue to compare prices and validity, as the "best" shifts with your itinerary.
Roaming and your rights
Can I choose the network my eSIM uses?
With most travel eSIMs, you can't manually pick the network. Your phone automatically connects to a local partner carrier when you land. Big names like Airalo, Holafly, Nomad, and Saily all work this way.
If your signal is weak or drops, toggle airplane mode. That forces a fresh search for the best available tower. On some phones, you can go into cellular settings and try a manual network selection, but the eSIM is usually locked to one or two specific carriers, so picking a random network won't work.
Can I use my eSIM across the whole EU?
Yes, you can. Most travel eSIMs built for Europe cover all EU countries in one plan. Providers like Airalo (Eurolink), Holafly (Europe), and Nomad (Europe) include the full bloc, often adding Norway, Switzerland, or the UK too.
Just open the plan details and scan the country list before you buy. A few budget options skip smaller nations. Prices for a 5GB, 30-day EU plan typically run from $15-$25. Grab a bigger pack and the per-GB cost drops. You can compare current rates from Airalo, Holafly, Nomad, Saily, aloSIM, Ubigi, and others right on NomadCue.
Do I need to turn on data roaming for my eSIM?
Yes, you almost always need to turn on data roaming for your travel eSIM line. The eSIM's home network sits in another country, so your phone sees any local tower as "roaming." If that toggle is off, data simply won't flow.
The key move: switch OFF roaming on your primary SIM first to dodge daily fees. Then head to your phone's settings and enable roaming only for the eSIM. On iPhone, tap the eSIM line, go to Cellular Data Options, and flip Data Roaming on. On Android, go to Connections > SIM manager, pick the eSIM, and turn on Data Roaming. Providers like Airalo, Holafly, and Nomad bake clear setup steps into their apps, so you won't get stuck.
Do travel eSIMs work in rural areas?
Coverage depends on the local network partners that the eSIM provider uses. In rural areas, coverage can be spotty. eSIMs from providers like Airalo, Holafly, and Nomad often use major carriers, but rural coverage varies. Check the provider's coverage map for the specific country and region. For example, Saily, aloSIM, Ubigi, Yesim, Instabridge, Jetpac, Maya Mobile, BNESIM, and Roamless all have coverage maps. Look for 4G/LTE and 5G indicators.
If you're heading to a very remote area, a local SIM from a network with dedicated rural towers (like T-Mobile in the US or EE in the UK) might be more reliable. But travel eSIMs can work if the partner network covers that spot. You can often see on the provider's site which network they partner with. So always do a quick check before buying.
Does a travel eSIM support 5G everywhere?
Nope, not everywhere. A travel eSIM works on local networks in each country. If the partner carrier you connect to has 5G, you'll usually get it. If they don't, you won't. It's that simple.
In big cities in North America, Europe, and parts of Asia, travel eSIMs from Airalo, Holafly, Nomad, and Ubigi typically connect to 5G. Rural areas often only get 4G or 3G. Some plans, like Holafly's unlimited ones, promise 5G where available. Saily and Jetpac also offer it on many country packages.
Before buying, peek at the plan's network details. If 5G is critical, compare a couple of providers for your destination. For maps, messaging, and browsing, the speed gap is often negligible, so don't overthink it.
Does a travel eSIM work as soon as I land?
Most of the time, yes. You just need to install the eSIM before your flight and turn it on once you land. After switching off airplane mode, your phone should pick up a local network within a minute or two.
Make sure the eSIM line is active and data roaming is enabled for that line. If it doesn't connect straight away, try manually selecting a network from the eSIM settings. Providers like Airalo, Holafly, and Nomad include simple setup guides, so you can sort it out quickly even without airport Wi-Fi.
Does an eSIM work on a plane?
Short answer: No. eSIMs connect to local cell towers on the ground. At 35,000 feet, you're way out of range, so your phone can't reach any network, even if you turn off airplane mode. It's not a provider limit, it's physics. So no calls, texts, or data from the eSIM itself while you're in the air.
What you can do: Switch to airplane mode once you board. If the airline offers Wi-Fi, you can connect and use apps like WhatsApp, Messenger, or FaceTime over that connection. Some carriers also support Wi-Fi calling, which lets you use your regular phone number (not the eSIM's) for calls and texts via Wi-Fi. Just make sure to set up your eSIM before takeoff so it's ready to activate when you land.
How do I check coverage before I buy?
Most eSIM stores list supported countries right on the package page. Airalo and Holafly embed coverage maps you can zoom into, while Nomad and Saily show you the exact networks they partner with in each country.
Open the provider's site or app, find the plan, and look for a 'Coverage' or 'Supported Countries' tab. Check if the network is a major local carrier, aloSIM and Ubigi usually name them. For multi-country plans, scan the list to make sure your stopover isn't skipped.
My eSIM will not connect abroad, what do I do?
First, confirm data roaming is ON for your eSIM line. Go to Settings > Cellular/Mobile, tap your eSIM, and toggle Data Roaming on. Restart your phone and try toggling Airplane mode.
- Check that your plan is active and covers the country you're in. If you're using Airalo, Holafly, or Nomad, open the app to verify.
- Set the APN manually. For Airalo eSIMs, try using "globaldata" as the APN (leave username/password blank). Check your provider's installation guide.
- Switch network selection from Automatic to Manual and pick a partner network listed in the app.
If nothing works, contact support through the app. Most providers like Saily or Jetpac have 24/7 chat for a quick APN reset.
What is data throttling and will it affect me?
Data throttling means your internet speed gets drastically reduced after you hit a certain usage limit. It's common on "unlimited" travel eSIMs. For example, a Holafly unlimited plan might give you 2GB of high-speed data per day, then slow you down to 128kbps until the next day's refresh. At that speed, maps and messaging still work, but streaming or video calls become painful.
Will it affect you? If you rely on video calls for work or stream a lot of content, yes. You'll feel the slowdown hard. If you just check maps, email, and messages, throttled speeds are often enough, but apps may feel sluggish.
Fixed-data eSIMs like Airalo or Nomad don't throttle. Your data stops once you use what you paid for. That's more predictable. Always check the fine print for "fair usage policy" or "speed after high-speed data" before buying.
Which network will my eSIM connect to?
It depends on the provider, but you'll typically bounce onto a local partner network. Think of it as your eSIM holding a contract with one or two carriers at your destination. For example, Airalo, Ubigi, and Jetpac show the exact network name (like Vodafone or T-Mobile) right on the plan details before you even buy.
If you go with something like Holafly, Saily, or Instabridge, the eSIM often auto-connects to the strongest compatible tower in the area. You can usually tweak this. Head into your phone's mobile data settings and if multiple networks show up, you'll be able to manually pick a different one if coverage dips.
Why does my eSIM show no service?
No service on a travel eSIM usually comes down to a few simple settings. First, make sure data roaming is ON for this eSIM line. Without it, the eSIM can't latch onto a partner network abroad.
Next, check that the eSIM is selected for cellular data in your phone's settings, not your home SIM. Also confirm the APN is correct; most providers like Airalo and Holafly will give you the APN in their setup guide. If it's wrong, delete and re-add it.
If that doesn't help, try toggling Airplane Mode, restarting your phone, or manually picking a network from the list. Sometimes the eSIM needs a moment to activate after you land. If you're still stuck, reach out to your provider's support; they can often push a profile refresh.
Why is my travel eSIM so slow?
Your eSIM might be crawling because you've burned through your plan's high-speed data allowance. Providers like Airalo, Nomad, and Saily cap the fast data, then throttle you to 128kbps or lower. Open your eSIM app and check your usage meter.
Network congestion also kills speed. In busy city centers or airports, every tourist is fighting for the same tower. Manually switch networks in your phone's cellular settings. Sometimes the APN needs a reset. Grab the correct APN from your provider's setup guide and re-enter it fresh.
If it stays slow, a quick fix is installing a different eSIM that uses another local carrier. Holafly often partners with multiple networks per country, so you can hop to a less jammed one.
Will my eSIM work on a cruise ship?
No, travel eSIMs like Airalo, Holafly, Nomad, and Saily do not cover maritime cellular networks on cruise ships. When you're at sea, your phone may latch onto the ship's satellite-based tower, which charges roaming rates that can hit $5 per MB or more.
To avoid surprise bills, switch your phone to airplane mode the moment you board. Use the ship's Wi-Fi for messages and browsing (buy a package in advance). Save your eSIM data for when you dock at a port, where it will connect to local towers just like on land.
Some pay-as-you-go eSIMs like Roamless might technically connect, but you'll burn through your credit fast. Stick to Wi-Fi at sea.
Will using an eSIM abroad trigger roaming charges?
No, using a travel eSIM for data won't trigger dreaded roaming charges, because the eSIM connects you to a local network in the country you're visiting. Think of it as having a local SIM card without the plastic. Providers like Airalo, Holafly, Nomad, and Saily sell prepaid data plans that use regional carriers, so your phone treats the data as domestic.
But there's a catch: your primary SIM is still in the phone. If you leave data roaming enabled on your home line, it might try to connect and rack up fees for calls, texts, or background data. To avoid that, turn off roaming on your primary SIM before you travel, or set the travel eSIM as the default for data and disable "Allow Mobile Data Switching." You can still use your primary number for calls and texts over Wi-Fi Calling if your carrier supports it.