An eSIM is a digital SIM card built directly into your phone. Unlike a physical SIM, you do not insert or swap it. You buy a data plan online, scan a QR code or tap a button, and you have local mobile data abroad in under 2 minutes.
Plans start at $4 for 1GB of data. This first-time eSIM guide covers every step: how to check whether your phone supports eSIM, how to pick the right plan for your trip length and data habits, how to install the eSIM before you travel, and what to do if something goes wrong at activation. You do not need to be technical.
Every major phone manufacturer has built eSIM support into their flagship models since 2018. If you have an iPhone XR or newer, a Samsung Galaxy S20 or newer, or any Google Pixel from the 3a onwards, your phone almost certainly supports eSIM. The only other requirement is that your phone is carrier-unlocked, meaning it can accept SIM cards from networks other than your home carrier.
Most phones are unlocked by default if bought outright; phones on payment plans may need a call to your carrier to unlock.
comparison.topPicks
| comparison.rank | comparison.provider | comparison.bestFor | comparison.why |
|---|---|---|---|
| #1 | HelloRoam | First-time buyers | Rated 4.9/5. The highest-rated provider with the clearest setup process and 24/7 WhatsApp support. 185+ countries covered. If your first eSIM activation goes wrong, HelloRoam's support team resolves it faster than any competitor we have tested. |
| #2 | Airalo | Widest country coverage | Rated 4.5/5. The largest catalog with 200+ countries. In-app step-by-step installation guide. Best choice if your destination is less common or if you visit multiple countries on one trip. |
| #3 | Holafly | Unlimited data, no tracking | Rated 4.5/5. Simplest plan structure for first-timers: pay a daily rate and use data without counting megabytes. Ideal if you cannot predict how much data you will use. 170+ countries covered. |
| #4 | Saily | Security and privacy | Rated 4.4/5. Includes NordVPN integration at no extra cost. Best for business travelers or anyone handling work emails and sensitive files on public Wi-Fi abroad. 150+ countries covered. |
| #5 | Nomad | Budget-conscious travelers | Rated 4.2/5. The lowest entry prices on many popular routes. 1GB plans from $3.50. Best for first-timers who want to try eSIM without committing to a large plan. |
What Is an eSIM and How Does It Differ from a Physical SIM?
An eSIM (embedded SIM) is a programmable chip soldered directly onto your phone's circuit board. It works exactly like a physical SIM card, connecting your phone to a cellular network, but you cannot remove or physically swap it. You program it remotely by scanning a QR code or tapping a button in your phone's settings.
The key benefit for travelers is this: you can have a local data connection in your destination country without visiting a carrier store, without removing your home SIM card, and without losing access to calls and texts on your home number. Modern smartphones support dual SIM, which means they run your home physical SIM and your travel eSIM simultaneously. Your WhatsApp, calls, and SMS stay on your home number.
Your mobile data comes from the local carrier in your destination, at local speeds and local prices. The technology has been standard on flagship phones since 2018. Apple introduced eSIM on the iPhone XR and XS.
Google added it to the Pixel 2 in 2017. Samsung included it in Galaxy devices from the S20 series. By 2026, eSIM is standard equipment on every flagship phone from every major manufacturer and is now included in mid-range devices as well.
The practical difference for a first-time buyer: a physical SIM swap takes 10-30 minutes at an airport kiosk or carrier store, costs $10-30 for a short-term tourist SIM, and requires removing your home SIM. An eSIM purchase takes 3-5 minutes on your phone from anywhere with Wi-Fi, costs $4-25 depending on destination and data, and leaves your home SIM untouched.
Step 1: Check Whether Your Phone Supports eSIM
Most phones released after 2019 support eSIM. iPhone XR, iPhone XS, and every iPhone model after those support eSIM. In the United States, the iPhone 14 and later models ship with no physical SIM tray at all; they are eSIM-only. In other countries, iPhone 14 and later models have one nano-SIM slot plus one eSIM.
Samsung Galaxy S20, S21, S22, S23, and S24 series all support eSIM. Samsung Galaxy Z Fold and Z Flip foldable models from the second generation onwards support eSIM. Important exception: Samsung's Exynos-chipset variants sold in some Asian markets do not support eSIM.
Check your specific model number against Samsung's specification page if you are unsure. Google Pixel 3a and every Pixel model after that supports eSIM. The Pixel 9 series devices are among the most reliable eSIM phones available in 2026.
OnePlus 10 Pro, OnePlus 11, and OnePlus 12 support eSIM. Xiaomi 12 Pro, 13 Pro, and 14 Ultra support eSIM in most markets. Motorola Edge+ and recent Razr models support eSIM.
To check your specific phone, go to Settings > General > About on iPhone, and look for Carrier Lock or Digital SIM information. On Android, go to Settings > Connections > SIM Manager on Samsung, or Settings > Network and Internet > SIMs on Pixel. The presence of an Add eSIM or Download a SIM option confirms eSIM support.
The second check is carrier lock status. A carrier-locked phone will not accept eSIM profiles from other carriers. On iPhone: Settings > General > About.
If you see Carrier Lock: No SIM restrictions, your phone is unlocked. If restrictions appear, contact your carrier to request an unlock. Most carriers unlock phones after the device is fully paid off or after a standard service commitment period, typically 12 to 24 months.
Step 2: Choose the Right Plan for Your Trip
Travel eSIM plans come in two types: fixed data and unlimited. Fixed data plans give you a specific amount of data (1GB, 3GB, 5GB, 10GB, or 20GB) that lasts for a set number of days. Unlimited plans give you data all day with no hard ceiling, though every unlimited plan throttles download speeds after a daily fair-use limit of 1 to 2GB.
Speeds after throttling drop to 1-3 Mbps, which is enough for maps, messaging, and basic browsing but not for HD streaming. The right plan depends on what you actually do with your phone while traveling. If you use maps for navigation, send messages on WhatsApp, and check social media occasionally, a 3GB plan covers a 7-day trip comfortably.
If you upload photos and videos daily, join video calls, or stream music, a 5-10GB plan is safer. If you stream video, join video meetings, or do not want to monitor usage, unlimited is the right choice. A practical data budget by activity: maps and navigation use about 50MB per hour of active use.
Messaging apps (WhatsApp, Telegram, iMessage) use about 10MB per hour. Social media browsing uses about 200MB per hour. Video calls on FaceTime or Zoom use about 350MB per hour.
HD video streaming uses about 1GB per hour. For a 7-day trip with moderate use, 3-5GB is the practical range for most travelers. For a 7-day trip with daily video calls or streaming, choose 10GB or unlimited.
On pricing: Nomad offers the lowest per-GB rates on many routes, with 1GB plans starting at $3.50 for popular destinations. Airalo has the widest catalog for 200+ countries with 1GB plans from $4.50 and 5GB from $12. HelloRoam delivers the strongest balance of price, network quality, and support reliability, with 5GB plans starting at $9 for the most popular destinations and 10GB from $16.
Holafly's unlimited plans start at $5.90 per day for a single-day plan, dropping to around $4.50 per day on 30-day plans. You can also use our data usage estimator tool to calculate a personalized recommendation based on your specific activities and trip length.
Step 3: Buy and Install Your eSIM
The purchase process takes under 5 minutes. Download the provider's app or visit their website, create an account, select your destination country, choose a plan, and pay. Every major provider accepts Visa, Mastercard, and American Express.
Airalo, HelloRoam, and Holafly also accept PayPal. HelloRoam accepts Apple Pay. Once your payment clears, you receive a QR code by email and inside the provider's app.
Install the eSIM before you leave home. You need Wi-Fi to download the carrier profile, and installing at home gives you time to troubleshoot if anything goes wrong. To install on iPhone: go to Settings > Cellular > Add Cellular Plan.
Choose Other and use your phone's camera to scan the QR code. Give the plan a label such as Japan Data and decide whether to use this line for data, calls, or both. For most travelers, set the eSIM line to Data Only and keep your home SIM for calls and SMS.
To install on Samsung Android: go to Settings > Connections > SIM Manager > Add Mobile Plan and scan the QR code. On Google Pixel: go to Settings > Network and Internet > SIMs > Add a SIM, then scan. If you have an iPhone 15 or 16 with iOS 17.4 or later, some providers support direct push installation.
Instead of scanning a QR code, you tap a link in the provider's app and the profile installs automatically. HelloRoam and Airalo support push installation for eligible iPhone models. After installation, the eSIM sits on your phone in a ready state.
You choose when to activate it, which controls when your plan's validity period starts counting.
Step 4: Activate Your eSIM and Set Up Dual SIM
Activation is separate from installation. Installing the eSIM downloads the carrier profile to your phone. Activating the eSIM tells the network to assign your connection and start your plan.
You control when activation happens. Activating before your flight means your phone connects to the destination carrier the moment you land, with no setup required in the airport. Activating on arrival means your plan validity period starts when you actually need data, not when you buy it.
HelloRoam and Airalo allow a 30-day window between purchase and activation. Holafly activates plans immediately upon installation. Check your provider's activation policy before purchasing if the timing matters for your trip.
Once the plan is active, configure your phone to use the eSIM for data and your home SIM for calls. On iPhone: Settings > Cellular > Cellular Data, select your travel eSIM line. On Samsung: Settings > Connections > SIM Manager, set mobile data to the travel SIM.
On Pixel: Settings > Network and Internet > SIMs, set preferred SIM for data to the travel line. With this dual SIM setup, your home number receives calls and SMS normally, including two-factor authentication texts and banking codes. Your internet connection runs through the local carrier at local data speeds.
To track how much data you have used, check Settings > Cellular > Cellular Data Usage on iPhone and reset the statistics at the start of your trip. Most provider apps also display a live counter. When your data is running low, most providers let you purchase a top-up plan without any new QR code scan or installation.
Step 5: Fix Common eSIM Problems
The most common first-time eSIM problem is a carrier-locked phone. If you confirmed your phone is unlocked and the eSIM still shows no service, work through these steps. First, restart your phone completely after installing the eSIM.
Many first-time connection issues resolve with a restart. Second, turn airplane mode on, wait 30 seconds, then turn it off. This forces the phone to scan for and register with available networks.
Third, confirm that mobile data is enabled for your travel eSIM line specifically. Go to Settings > Cellular on iPhone and check that the travel line has cellular data turned on. On Android, check SIM Manager to confirm the correct line is set as the active data SIM.
Fourth, if you are on Android and still see no signal, try configuring the APN manually. Your provider's support page or help center lists the correct APN settings for your specific destination. Samsung Galaxy and OnePlus phones sometimes need manual APN configuration for eSIM plans to work correctly.
Fifth, if none of these steps resolve the issue, contact your provider's support team. Provide your phone model, operating system version, destination country, and order confirmation number. HelloRoam's support team responds via WhatsApp in under 15 minutes around the clock.
Airalo offers in-app chat. Holafly, Saily, and Nomad each offer email and live chat support with response times under 12 hours for most requests. If your eSIM fails to activate after following all troubleshooting steps, you qualify for a refund.
A plan that cannot activate after reasonable troubleshooting is a technical failure on the provider's side, and all five major providers listed here honor refunds in this scenario.
comparison.methodology
eSIMRated purchases and tests plans independently using our own funds. We evaluate each provider across five categories: coverage (country and network count), pricing (cost per GB across all plan tiers), speed (measured download and upload throughput in real-world conditions), app experience (installation ease, reliability, and interface clarity), and customer support (response time, resolution rate, and channel availability). We run activation tests on iPhone and Android devices for every major provider at least quarterly.
Provider ratings are fixed as follows: HelloRoam 4.9/5, Airalo 4.5/5, Holafly 4.5/5, Saily 4.4/5, Nomad 4.2/5. We earn affiliate commissions when you purchase through links on this site. Our editorial ratings are not influenced by commercial relationships.
comparison.faq
Is eSIM safe to use?
Yes. eSIM uses the same cellular encryption standards as physical SIM cards. Your data travels over encrypted carrier networks, not over open Wi-Fi. An eSIM is actually more physically secure than a physical SIM because it cannot be removed from your phone by a pickpocket or someone who borrows your phone. The eSIM provider sees your data usage volume and connection timestamps but cannot see the content of your messages, browsing history, or app data. If you want an additional layer of privacy, Saily includes NordVPN access with every plan.
Will I lose my phone number when I use an eSIM?
No. Your home phone number stays active on your physical SIM card. A travel eSIM is a second, separate line added to your phone. Most eSIM plans are data-only, which means they do not have a phone number attached at all. Your existing number continues receiving calls, SMS, and two-factor authentication codes normally. If you set up dual SIM correctly (home SIM for calls, travel eSIM for data), you can receive a call on your home number while browsing the internet through the travel eSIM simultaneously.
Can I use eSIM and physical SIM at the same time?
Yes. This is the normal setup for traveling. Nearly every eSIM-capable phone supports dual SIM operation: one physical SIM slot and one eSIM slot active simultaneously. Set your home SIM as the default for calls and SMS. Set your travel eSIM as the default for mobile data. Both lines operate simultaneously. The only exception is the US-model iPhone 14 and later, which uses two eSIM slots instead of one physical SIM and one eSIM. These phones can still run two lines simultaneously.
How much does a travel eSIM cost?
Prices depend on the destination country and the data amount. For popular destinations like Japan, Thailand, and Europe, 1GB plans start at $4-5. Five-gigabyte plans for most destinations range from $9 to $18. Ten-gigabyte plans range from $16 to $25. Unlimited daily plans (all-you-can-use data) start at $5.90 per day from Holafly and go up to about $8 per day for premium coverage. Regional plans covering multiple countries at once typically cost 20-40% more than single-country plans but give you coverage across an entire region without switching plans mid-trip.
Do I need Wi-Fi to install an eSIM?
You need a data connection to download the eSIM profile when you first install it. For most phones and providers, that means a Wi-Fi connection. Install your eSIM before you leave home using your home Wi-Fi. If you have an iPhone 15 or later running iOS 17.4 or later, some providers support push installation, which can work over an existing cellular connection. However, installing before you travel on your home Wi-Fi is always the most reliable approach. Do not wait until you are at the airport or have already landed to install your eSIM for the first time.
Can I use my eSIM on multiple devices?
Generally no. eSIM profiles are locked to the device they are installed on. You cannot transfer an Airalo or Holafly eSIM from your phone to a tablet or laptop. iOS 16 and Android 14 introduced eSIM transfer features that allow moving a profile from one phone to another, but this feature is for moving your home carrier eSIM to a new phone, not for sharing travel eSIM plans. Each device you want to connect abroad needs its own eSIM plan. If you travel with both a phone and a tablet and want data on both, you either use the phone's mobile hotspot feature or buy separate plans.
What happens when my eSIM data runs out?
Your data connection stops, but your phone continues to work for calls and SMS through your home SIM. You have three options: buy a top-up from the same provider through their app (most providers allow this without any new installation), buy a new plan from the same or a different provider and install a new eSIM profile, or switch to Wi-Fi for data needs until you buy more. Most eSIM providers send a usage notification when you reach 80% and 100% of your plan data, giving you advance notice to act before you run out entirely.
Can I buy an eSIM at the airport?
Some airports have eSIM vending machines or kiosks, and some providers allow walk-up purchases in major transit hubs. Airport eSIM purchases typically cost 30-60% more than buying online in advance. The selection of plans is also limited. Buying your eSIM before you travel from a comparison site like eSIMRated is always cheaper. If you forgot to buy before you left, buy on your phone using your home carrier's roaming data for a few minutes to complete the eSIM purchase and installation.
Is eSIM better than buying a local SIM card at the destination?
For most travelers, yes. An eSIM is faster to set up (no queue, no paperwork), does not require swapping out your home SIM, and does not lose access to your home number during the trip. Local SIM cards are sometimes cheaper on a per-GB basis for longer stays, particularly in markets like India, Vietnam, and Thailand where extremely cheap local data plans exist. For a trip of 7 days or less, an eSIM is almost always the more practical choice. For stays of 30 days or more in a single country with a cheap local SIM market, comparing local SIM card prices with 30-day eSIM plans is worth the effort.
How do I remove an eSIM when I am done with my trip?
You can remove an eSIM profile from your phone at any time in Settings. On iPhone: Settings > Cellular, tap the travel eSIM line name, scroll down, and tap Remove Cellular Plan. On Samsung: Settings > Connections > SIM Manager, select the eSIM, and choose Delete. On Pixel: Settings > Network and Internet > SIMs, select the eSIM, and tap Delete. Removing the eSIM profile frees up the eSIM slot on your phone. If you bought a plan that expires after a set number of days, the plan simply stops working at expiry even if you leave the profile on your phone. There is no harm in keeping expired profiles on your phone other than slight clutter in your settings.